Electrical Center Identification Views. HUMMER H2 2008

For 1990-2009 cars only

Makes 🢒 HUMMER 🢒 2008 🢒 H2 🢒 Preface 🢒 Cautions and Notices 🢒 Electrical Center Identification Views

Connector 1:	Fuse Block - Underhood, Label
Connector 2:	Fuse Block - Underhood, Top View
Connector 3:	Fuse Block - Underhood, Bottom View
Connector 4:	Fuse Block - Underhood X1
Connector 5:	Fuse Block - Underhood X2
Connector 6:	Fuse Block - Underhood X3
Connector 7:	Fuse Block - Underhood X4
Connector 8:	Fuse Block - Underhood X5
Connector 9:	Fuse Block - Underhood X6
Connector 10:	Fuse Block - Underhood X7
Connector 11:	Fuse Block - Underhood X8
Connector 12:	Fuse Block - I/P, Label
Connector 13:	Fuse Block - I/P, Top View
Connector 14:	Fuse Block - I/P, Bottom View
Connector 15:	Fuse Block - I/P X1
Connector 16:	Fuse Block - I/P X2
Connector 17:	Fuse Block - I/P X3
Connector 18:	Fuse Block - I/P X4
Connector 19:	Junction Block - Battery Cable
Connector 20:	Junction Block - Left I/P, Label
Connector 21:	Junction Block - Left I/P, Top View
Connector 22:	Junction Block - Left I/P, Bottom View
Connector 23:	Junction Block - Left I/P X1
Connector 24:	Junction Block - Left I/P X2
Connector 25:	Junction Block - Left I/P X3
Connector 26:	Junction Block - Left I/P X4
Connector 27:	Junction Block - Left I/P X5 (SPO Alarm)
Connector 28:	Junction Block - Left I/P X8
Connector 29:	Junction Block - Left I/P X9
Connector 30:	Junction Block - Left I/P X10
Connector 31:	Junction Block - Left I/P X11
Connector 32:	Junction Block - Left I/P X12
Connector 33:	Junction Block - Right I/P, Top View
Connector 34:	Junction Block - Right I/P X1 (Wire Entry)
Connector 35:	Junction Block - Right I/P X2
Connector 36:	Junction Block - Right I/P X3
Connector 37:	Junction Block - Right I/P X4
Connector 38:	Junction Block - Right I/P X5
Connector 39:	Junction Block - Right I/P X6

Fuse Block - Underhood, Label

Fuse Block - Underhood, Device Usage

No.	Device	Rating	Description
1	TRLR STOP LT Fuse	10A	Trailer Wiring, Tail/Stop and Turn Signal Lamp - Left
2	ENG Fuse	15A	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor, Evaporative Emission (EVAP) Canister Purge Solenoid Valve
3	ECM/THROT CNTRL Fuse	15A	Engine Control Module (ECM)
4	TRLR STOP RT Fuse	10A	Trailer Wiring, Tail/Stop and Turn Signal Lamp - Right
5	FRT WSW Fuse	15A	Washer Fluid Pump
6	O2-B SNSR Fuse	10A	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2, Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
7	VSES/ABS-2 Fuse	30A	Electronic Brake Control Module (EBCM)
8	TRLR BK/UP Fuse	10A	Trailer Wiring
9	LO HDLP-LT Fuse	10A	Headlamp - Left
10	ECM-BATT Fuse	10A	Engine Control Module (ECM)
11	INJ-B Fuse	20A	Ignition Coil 2, Ignition Coil 4, Ignition Coil 6, Ignition Coil 8
12	TCM-BATT Fuse	15A	Automatic Transmission, Engine Control Module (ECM), Evaporative Emission (EVAP) Canister Vent Solenoid Valve
13	VEH BCK/UP Fuse	10A	Backup Lamp - Left, Backup Lamp - Right
14	LO HDLP-RT Fuse	10A	Headlamp - Right
15	A/C CMPRSR Fuse	10A	A/C Compressor Clutch
16	O2-A SNSR Fuse	10A	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
17	TRANS IGN 1 Fuse	15A	Automatic Transmission
18	FUEL Fuse	20A	Engine Control Module (ECM), Fuel System Control Module
19	REAR WSW Fuse	15A	Washer Fluid Pump
20	INJ-A Fuse	20A	Ignition Coil 1, Ignition Coil 3, Ignition Coil 5, Ignition Coil 7
21	TRLR PRK Fuse	15A	Trailer Wiring
22	LT PRK Fuse	15A	Park/Turn Signal Lamp - Left Front
23	RT PRK Fuse	15A	Park/Turn Signal Lamp - Right Front
24	HORN Fuse	15A	Horn - Left, Horn - Right
25	HI HDLP-RT Fuse	10A	Headlamp - Right
26	DRL Fuse	10A	Daytime Running Lamp (DRL) - Left, Daytime Running Lamp (DRL) - Right
27	HI HDLP-LT Fuse	10A	Headlamp - Left
28	S/ROOF Fuse	30A	Sunroof Module
29	DLIS Fuse	2A	Ignition Switch
30	WPR Fuse	25A	WIPER CONTROL PCB Relay
31	SEO B2 Fuse	30A	Upfitter Provision
32	ECAS Fuse	15A	Air Suspension Module
33	HVAC BATT Fuse	10A	HVAC Control Module
34	AIRBAG IGN Fuse	10A	Junction Block - Left I/P
35	AMP Fuse	30A	Audio Amplifier
36	RDO Fuse	15A	Radio, Rear Seat Audio (RSA) Controller, Digital Radio Receiver
37	MISC IGN Fuse	10A	Junction Block - Left I/P
38	AIRBAG BATT Fuse	15A	Junction Block - Left I/P
39	IPC Fuse	10A	Body Control Module (BCM), Instrument Panel Cluster (IPC)
40	RUN/ACCY Fuse	10A	Midgate Module
41	AUX HVAC-IGN Fuse	10A	Instrument Panel Cluster (IPC)
42	REAR DEFOG Fuse	30A	Midgate Control Module (SUT), Rear Window Defogger (SUV)
43	SEO B1 Fuse	15A	Upfitter Provision
44	LTR Fuse	15A	Data Link Connector (DLC)
45	SEO Fuse	10A	Upfitter Provision
46	HVAC-IGN Fuse	10A	Junction Block - Right I/P
47	ECM-IGN Fuse	15A	Engine Control Module (ECM), Fuel System Control Module, Electronic Brake Control Module
50	FAN-1 Fuse	40A	FAN LO Relay
51	ECAS Fuse	60A	Air Suspension Relay
52	VSES/ABS-1 Fuse	60A	Electronic Brake Control Module (EBCM)
53	FAN-2 Fuse	40A	FAN HI Relay
54	STRTR Fuse	40A	Starter
55	STUD-2 TRLR Fuse	30A	Trailer Wiring
56	LBEC 1 Fuse	60A	Junction Block - Left I/P
57	WSW/HTR Fuse	60A	Windshield Washer Solvent Heater
58	TREC Fuse	30A	Transfer Case Shift Control Module
59	STUD-1 TRLR RCPT Fuse	40A	Trailer Wiring
60	MBEC 1 Fuse	60A	Junction Block - Left I/P
61	HVAC BLWR Fuse	40A	Junction Block - Right I/P
62	LBEC 2 Fuse	60A	Fuse Block I/P
--	A/C CMPRSR Relay	--	A/C CMPRSR Fuse
--	FAN CNTRL Relay	--	AXH VLV Fuse
--	FAN HI Relay	--	FOG LAMP Fuse
--	FAN LO Relay	--	FOG LAMP Fuse
--	HDLP LO/HID Relay	--	LO HDLP - LT Fuse, LO HDLP - RT Fuse, DRL 2 Fuse
--	PRK LAMP Relay	--	LT PRK Fuse, RT PRK Fuse, TRLR PRK Fuse
--	PWR/TRN Relay	--	ECM/THROT CONT Fuse, ENG Fuse, INJ-A Fuse, INJ-B Fuse, O2-A SNSR Fuse, O2-B SNSR Fuse, FAN CNRTL PCB Relay, FAN HI PCB Relay, FAN LO PCB Relay
--	REAR DEFOG Relay	--	REAR DEFOG Fuse
--	RUN/CRANK Relay	--	AIRBAG Fuse, AUX HVAC-IGN Fuse, IGN Fuse, ECM-IGN Fuse, MISC IGN Fuse, SEO/ALC Fuse, TRANS IGN 1 Fuse
--	STRTR Relay	--	STRTR Fuse
Important: Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block.
--	BCK/UP LAMP PCB Relay	--	VEH BCK/UP Fuse, TRLR BCK/UP Fuse
--	DRL PCB Relay	--	DRL Fuse
--	FAN CNTRL PCB Relay	--	Cooling Fan - Right
--	FAN HI PCB Relay	--	Cooling Fan - Right, FAN CNTRL Relay
--	FAN LO PCB Relay	--	Cooling Fan - Left
--	FRT WASH PCB Relay	--	FRT WASH Fuse
--	HI BEAM PCB Relay	--	HI HEADLAMP - LT Fuse, HI HEADLAMP - RT Fuse
--	HORN PCB Relay	--	HORN Fuse
--	L/GATE PCB Relay	--	L/GATE RELSE Fuse
--	REAR WASH PCB Relay	--	REAR WASH Fuse
--	RUN PCB Relay	--	FWD Fuse, HTD STR/WHL Fuse
--	TRLR STOP LT PCB Relay	--	TRLR STOP LT Fuse
--	TRLR STOP RT PCB Relay	--	TRLR STOP RT Fuse
--	WIPER 1 PCB Relay	--	Wiper 2 PCB Relay
--	WIPER 2 PCB Relay	--	Windshield Wiper Motor

Fuse Block - Underhood, Top View

Fuse Block - Underhood, Bottom View

Fuse Block - Underhood X1

Connector Part Information

OEM: 13513343
Service: 19115674
Description: 30-Way F GT 150 280 Metri-Pack Series (GY)

Terminal Part Information

Pins: A1, A2, A4, B3, E1, E4, F4, F5, F7, F8
Terminal/Tray: 15496302/5
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: A7, A8, E2, E3
Terminal/Tray: 13525970/4
Core/Insulation Crimp: 2/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: B3, E5, E5
Terminal/Tray: 13525969/4
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: C1, C2, D1, D2
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Underhood X1

Pin	Wire	Circuit	Function
A1	0.5 BK	250	Ground
A2	0.5 L-BU/WH	1314	Left Front Turn Signal Lamp Supply Voltage
A3	--	--	Not Used
A4	0.5 D-BU/WH	1315	Right Front Turn Signal Lamp Supply Voltage
A5-A6	--	--	Not Used
A7	1 L-GN/BK	311	Right Headlamp High Beam Supply Voltage
A8	0.8 D-GN/WH	711	Left Headlamp High Beam Supply Voltage
B1-B2	--	--	Not Used
B3	0.35 D-BU	545	DRL Supply Voltage
B3	0.35 D-BU	545	DRL Supply Voltage
B4-B5	--	--	Not Used
C1	5 GY	532	Cooling Fan Motor Supply Voltage
C2	5 YE	5358	Auxiliary Cooling Fan Motor Supply Voltage
D1	5 L-BU	409	Cooling Fan Motor Supply Voltage
D2	5 BK	150	Ground
E1	0.5 OG	228	Windshield Washer Pump Control
E2	0.8 YE	712	Left Headlamp Low Beam Supply Voltage
E3	0.8 TN/WH	312	Right Headlamp Low Beam Supply Voltage
E4	0.5 D-BU	227	Rear Window Washer Pump Control
E5	0.8 D-GN	29	Horn Control
E5	0.5 D-GN	29	Horn Control
F1-F3	--	--	Not Used
F4	0.5 BN	2609	Right Rear Park Lamps Supply Voltage
F5	0.5 BN	2609	Right Rear Park Lamps Supply Voltage
F6	--	--	Not Used
F7	0.5 BN	2509	Left Rear Park Lamps Supply Voltage
F8	0.5 BN	2509	Left Rear Park Lamps Supply Voltage

Fuse Block - Underhood X2

Connector Part Information

OEM: 13513347
Service: 19115659
Description: 50-Way F GT 280 Metri-Pack Series (BK)

Terminal Part Information

Pins: A1, B5, C3, C5, D3, D4, L1-L5, M1-M5, N1, N3, N4, P2, P3, P5
Terminal/Tray: 13525970/4
Core/Insulation Crimp: Pins A1, B5, C3, C5, D3, L2-L4, M1, M3-M5, N1, N3, N4, P2, P3, P5 - See Terminal Repair Kit
Core/Insulation Crimp: Pins D4, L5, M2 - 2/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: F1
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Pins: N5
Terminal/Tray: 13525969/4
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - Underhood X2

Pin	Wire	Circuit	Function
A1	D-GN	335	Low Speed Cooling Fan Relay Control
A2-A5	--	--	Not Used
B1-B4	--	--	Not Used
B5	D-BU	473	High Speed Cooling Fan Relay Control
C1-C2	--	--	Not Used
C3	D-GN/WH	459	A/C Compressor Clutch Relay Control
C4	--	--	Not Used
C5	YE/BK	625	Starter Enable Relay Control
D1-D2	--	--	Not Used
D3	RD/WH	440	Battery Positive Voltage
D4	0.8 D-GN	59	A/C Compressor Clutch Supply Voltage
D5	--	--	Not Used
E1-E3	--	--	Not Used
F1	3 PU	6	Starter Solenoid Crank Voltage
G1	--	--	Not Used
L1	--	--	Not Used
L2	PK	1539	Ignition 1 Voltage
L2	PK	1539	Ignition 1 Voltage
L3	0.8 PK	1239	Ignition 1 Voltage
L3	0.8 PK	1239	Ignition 1 Voltage
L4	0.5 PK	539	Ignition 1 Voltage
L4	0.5 PK	539	Ignition 1 Voltage
L5	1 PK	1039	Ignition 1 Voltage
M1	PK	1839	Ignition 1 Voltage
M1	PK	1839	Ignition 1 Voltage
M2	1 PK	1239	Ignition 1 Voltage
M3	0.8 PK	1239	Ignition 1 Voltage
M3	0.8 PK	1239	Ignition 1 Voltage
M4	0.8 PK	1039	Ignition 1 Voltage
M4	0.8 PK	1039	Ignition 1 Voltage
M5	0.8 PK	1039	Ignition 1 Voltage
M5	0.8 PK	1039	Ignition 1 Voltage
N1	0.5 PK	1339	Ignition 1 Voltage
N2	--	--	Not Used
N3	0.5 RD/WH	1840	Battery Positive Voltage
N4	0.5 PK	2139	Ignition 1 Voltage
N5	3 BK	550	Ground
P1	--	--	Not Used
P2	YE	5991	Powertrain Relay Coil Control
P3	L-BU/WH	6311	TCC Brake Signal
P3	L-BU/WH	6311	TCC Brake Signal
P4	--	--	Not Used
P5	PK	439	Ignition 1 Voltage

Fuse Block - Underhood X3

Connector Part Information

OEM: 13513342
Service: 19115657
Description: 30-Way F GT 150 280 Metri-Pack Series (BK)

Terminal Part Information

Pins: A1-A5, A7, A8, B4, E2, E3, F1, F5, F7, F8
Terminal/Tray: 15496302/5
Core/Insulation Crimp: Pins A1, A2, A7, B4, E2, F1, F8 - 2/A
Core/Insulation Crimp: Pins A3, A4, A5, A8, E3, F5, F7 - E/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: A7, E1, E3, F8
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Pins: B3, E4
Terminal/Tray: 13525969/4
Core/Insulation Crimp: Pins B3 - F/D
Core/Insulation Crimp: Pins E4 - 4/4
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: C1, D1
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Underhood X3

Pin	Wire	Circuit	Function
A1	0.8 YE/BK	1335	Right Rear Turn Signal Lamp Supply Voltage
A2	0.8 YE/BK	1334	Left Rear Turn Signal Lamp Supply Voltage
A3	0.5 L-BU	20	Stop Lamp Supply Voltage
A4	0.5 L-BU	20	Stop Lamp Supply Voltage
A5	0.5 RD/WH	1840	Battery Positive Voltage
A6	--	--	Not Used
A7	0.8 BN	2509	Left Rear Park Lamps Supply Voltage
A8	0.5 BN	2509	Left Rear Park Lamps Supply Voltage
B1-B2	--	--	Not Used
B3	3 RD/WH	1640	Battery Positive Voltage
B4	1 BN	2109	Trailer Park Lamps Supply Voltage
B5	--	--	Not Used
C1	5 RD/BK	1842	Battery Positive Voltage (ZM6)
C2	--	--	Not Used
D1	5 RD/BK	1742	Battery Positive Voltage
D2	--	--	Not Used
E1	0.5 D-GN	1619	Trailer Right Rear Turn Lamp Supply Voltage
E1	0.8 D-GN	1619	Trailer Right Rear Turn Lamp Supply Voltage
E2	1 L-GN	1624	Trailer Backup Lamps Supply Voltage
E3	0.5 L-GN	24	Backup Lamp Supply Voltage
E3	0.5 L-GN	24	Backup Lamp Supply Voltage
E4	2 RD/WH	3440	Battery Positive Voltage
E5	--	--	Not Used
F1	0.8 YE	1618	Trailer Left Rear Turn Lamp Supply Voltage
F2-F4	--	--	Not Used
F5	0.5 PK	439	Ignition 1 Voltage
F6	--	--	Not Used
F7	0.5 BN	2609	Right Rear Park Lamps Supply Voltage
F8	0.8 BN	2609	Right Rear Park Lamps Supply Voltage

Fuse Block - Underhood X4

Connector Part Information

OEM: 13513329
Service: 19115656
Description: 56-Way F GT 150 280 Metri-Pack Series (BK)

Terminal Part Information

Pins: A1, A3, A7, C1, C3, D4, G1, G5, H5, K5, H1, H2, H4, J4, K1, K2
Terminal/Tray: 15496302/5
Core/Insulation Crimp: Pins A1, C1, G5, H5, K5 - 2/A
Core/Insulation Crimp: Pins A3, A7, C3, D4, G1, H1, H2, H4, J4, K1, K2 - E/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: B5, G2, G3, J1
Terminal/Tray: 13525969/4
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: E1, E2, F2
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Underhood X4

Pin	Wire	Circuit	Function
A1	0.8 L-BU/WH	1314	Left Front Turn Signal Lamp Supply Voltage
A2	--	--	Not Used
A3	0.5 D-BU	477	Windshield Wiper Switch Signal 1
A4-A6	--	--	Not Used
A7	0.5 WH	193	Rear Defog Relay Control
A8	--	--	Not Used
B1-B4	--	--	Not Used
B5	3 PU	293	Rear Defog Element Supply Voltage
C1	0.8 D-BU/WH	1315	Right Front Turn Signal Lamp Supply Voltage
C2	--	--	Not Used
C3	0.5 TN/WH	1969	Headlamp High Beam Relay Control
C4-C8	--	--	Not Used
D1-D3	--	--	Not Used
D4	0.5 RD/WH	4440	Battery Positive Voltage
D5	--	--	Not Used
E1	5 RD/BK	842	Battery Positive Voltage
E2	5 RD/BK	642	Battery Positive Voltage
F1	--	--	Not Used
F2	5 RD/BK	542	Battery Positive Voltage
G1	0.5 TN	28	Horn Relay Control
G2	3 RD/WH	2340	Battery Positive Voltage
G3	3 RD/WH	3740	Battery Positive Voltage
G4	--	--	Not Used
G5	0.8 RD/WH	4540	Battery Positive Voltage
H1	0.5 BN	2509	Left Rear Park Lamps Supply Voltage
H2	0.5 BN	2609	Right Rear Park Lamps Supply Voltage
H3	--	--	Not Used
H4	0.5 L-GN/BK	592	DRL Relay Control
H5	0.8 D-GN/WH	1335	Right Rear Turn Signal Lamp Supply Voltage
H6-H8	--	--	Not Used
J1	3 RD/WH	3140	Battery Positive Voltage (CF5)
J2-J3	--	--	Not Used
J4	0.5 RD/WH	2840	Battery Positive Voltage
J4	0.5 RD/WH	2840	Battery Positive Voltage
J5	0.8 RD/WH	640	Battery Positive Voltage
J5	0.8 RD/WH	640	Battery Positive Voltage
K1	0.5 L-GN	2270	Rear Window Washer Relay Control (6)
K2	0.5 PK/WH	1970	Headlamp Low Beam Relay Control
K3-K4	--	--	Not Used
K5	0.8 YE/BK	1334	Left Rear Turn Signal Lamp Supply Voltage
K6-K8	--	--	Not Used

Fuse Block - Underhood X5

Connector Part Information

OEM: 13513345
Service: 19115658
Description: 56-Way F GT 150 280 Metri-Pack Series (GY)

Terminal Part Information

Pins: A2, B1-B3, C4, C8, D1, D2, D4, G2, G3, G4, G5, H1, H3, H5, H8, J5, K1, K3, K5
Terminal/Tray: 15496302/5
Core/Insulation Crimp: Pins A2, B1, B2, C4, C8, D1, D2, D4, G2, G3, G4, G5, H1, H3, H5, H8, J5, K1, K3 - E/A
Core/Insulation Crimp: Pins K5 - 2/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: E1, F1, F2
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Pins: G1, J1, J2
Terminal/Tray: 13525969/4
Core/Insulation Crimp: 4/4
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - Underhood X5

Pin	Wire	Circuit	Function
A1	--	--	Not Used
A2	0.5 L-BU/WH	6311	TCC Brake Signal
A3-A8	--	--	Not Used
B1	0.5 L-BU/WH	6311	TCC Brake Signal
B1	0.5 L-BU/WH	6311	TCC Brake Signal
B2	0.5 RD/WH	740	Battery Positive Voltage
B3	0.5 RD/WH	340	Battery Positive Voltage
B3	1 RD/WH	340	Battery Positive Voltage
B4-B5	--	--	Not Used
C1-C3	--	--	Not Used
C4	0.5 YE	43	Accessory Voltage
C5-C7	--	--	Not Used
C8	0.5 D-BU	45	Park Lamp Relay Control (UE1)
D1	0.5 RD/WH	540	Battery Positive Voltage
D2	0.5 RD/WH	3340	Battery Positive Voltage
D3	--	--	Not Used
D4	0.5 YE	643	Accessory Voltage
D5	--	--	Not Used
E1	5 RD/BK	1642	Battery Positive Voltage (CHW)
E2	--	--	Not Used
F1	3 RD/BK	1342	Battery Positive Voltage
F2	5 RD/BK	42	Battery Positive Voltage
G1	2 BK	550	Ground
G2	0.5 PK	1139	Ignition 1 Voltage
G3	0.5 PK	239	Ignition 1 Voltage
G4	0.5 PK	1639	Ignition 1 Voltage
G4	0.5 PK	1639	Ignition 1 Voltage
G5	0.5 PK	739	Ignition 1 Voltage
H1	0.5 OG	5186	Left Trailer Turn Signal Lamp Control
H2	--	--	Not Used
H3	0.5 YE	5187	Right Trailer Turn Signal Lamp Control
H4	--	--	Not Used
H5	0.5 YE	5199	Run/Crank Relay Control
H6-H7	--	--	Not Used
H8	0.5 D-BU	38	Backup Lamp Relay Control
J1	2 PU	92	Windshield Wiper Motor High Speed
J2	2 D-GN	95	Windshield Washer Switch Signal
J3-J4	--	--	Not Used
J5	0.5 PK	839	Ignition 1 Voltage
K1	0.5 TN	860	Front Windshield Wiper Switch High Signal
K2	--	--	Not Used
K3	0.5 GY	91	Windshield Wiper Switch Signal 2
K4	--	--	Not Used
K5	1 L-BU	20	Stop Lamp Supply Voltage
K6-K8	--	--	Not Used

Fuse Block - Underhood X6

Connector Part Information

OEM: 15488459
Service: See Catalog
Description: 1-Way F High Power Series (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Fuse Block - Underhood X6

Pin	Wire	Circuit	Function
A	19 RD	1	Battery Positive Voltage

Fuse Block - Underhood X7

Terminal Part Information

Terminal: 12162099
Core/Insulation Crimp: N/A
Description: Ring Terminal

Fuse Block - Underhood X7

Pin	Wire	Circuit	Function
1	RD/BK	742	Battery Positive Voltage

Fuse Block - Underhood X8

Terminal Part Information

Terminal: 12103506
Core/Insulation Crimp: N/A
Description: Ring Terminal

Fuse Block - Underhood X8

Pin	Wire	Circuit	Function
1	RD/BK	242	Battery Positive Voltage

Fuse Block - I/P, Label

Fuse Block - I/P, Device Usage

Device	Rating	Description
AUX PWR Fuse	20A	Auxiliary Power Outlet - Bin, Auxiliary Power Outlet - Console, Auxiliary Power Outlet - Front - 1
AUX PWR2 Fuse	20A	Auxiliary Power Outlet - Rear
BCM Fuse	15A	Body Control Module (BCM)
CTSY Fuse	15A	Body Control Module (BCM)
DDM Fuse	15A	Driver Door Module (DDM)
DIM Fuse	10A	Body Control Module (BCM)
DSM Fuse	10A	Memory Seat Module (AN3), Remote Control Door Lock Receiver (RCDLR)
INFO Fuse	5A	Remote Control Door Lock Receiver (RCDLR), Video Display
IS LAMPS Fuse	10A	Body Control Module (BCM)
LCK1 Fuse	15A	Door Latch Assembly - Left Rear, Door Latch Assembly - Right Rear
LCK2 Fuse	15A	Endgate Lock Actuator
LT DR Circuit Breaker	25A	Driver Door Module (DDM), Window Switch - Left Rear
LT STOP TRN Fuse	15A	Body Control Module (BCM)
OBS DET Fuse	10A	Liftgate Module (LGM), Rear Object Sensor Control Module
ONSTAR	10A	Vehicle Communication Interface Module (VCIM) (UE1)
PDM Fuse	15A	Door Lock/Window Switch - Passenger
REAR HVAC Fuse	30A	Blower Motor Control Module - Auxiliary
REAR SEAT Fuse	20A	Heated Seat Control Module - Rear
REAR WPR Fuse	25A	Rear Window Wiper Motor
RT STOP TRN Fuse	15A	Body Control Module (BCM)
STOP LAMPS Fuse	15A	Body Control Module (BCM)
SWC BKLT Fuse	2A	Steering Wheel Control Switch Assembly - Left, Steering Wheel Control Switch Assembly - Right
UDGO	10A	Garage Door Opener (GDO)
UNLCK1 Fuse	15A	Door Latch Assembly - Left Rear, Door Latch Assembly - Right Rear
UNLCK2 Fuse	15A	Endgate Lock Actuator
Important: Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block.
LOCK/UNLOCK PCB Relay	--	LCK 1 Fuse, LCK 2 Fuse, UNLCK 1 Fuse, UNLCK 2 Fuse

Fuse Block - I/P, Top View

Fuse Block - I/P, Bottom View

Fuse Block - I/P X1

Connector Part Information

OEM: 13552254
Service: See Catalog
Description: 40-Way F GT 150 280 Metri-Pack 800 Series (BK)

Terminal Part Information

Pins: A1, A2, A5, A6, C2, H3, H4, K1, K2
Terminal/Tray: 12191812/19
Core/Insulation Crimp: Pins A1, A2 - C/A
Core/Insulation Crimp: Pins A5, A6, C2, H3, H4, K1, K2 - E/C
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: B2, D1, D2, E2, F2, F3, G1, G2, J1, J2, J3
Terminal/Tray: 15304711/8
Core/Insulation Crimp: 2/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: E1
Terminal/Tray: 15304713/19
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: E3, F1
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - I/P X1

Pin	Wire	Circuit	Function
A1	0.8 TN	201	Left Front Speaker Output (+)
A2	0.8 GY	118	Left Front Speaker Output (-)
A3-A4	--	--	Not Used
A5	0.35 GY	1690	Automatic Day/Night Mirror Signal
A6	0.35 PK	1691	Automatic Day/Night Mirror Low Reference
B1	--	--	Not Used
B2	0.8 RD/WH	2540	Not Used
B3	--	--	Battery Positive Voltage
C1	--	--	Not Used
C2	0.35 D-GN	5060	Low Speed GMLAN Serial Data
C3-C6	--	--	Not Used
D1	0.8 RD/WH	3040	Battery Positive Voltage
D2	0.8 RD/WH	2940	Battery Positive Voltage
E1	3 BK	1850	Ground
E2	0.8 RD/WH	240	Battery Positive Voltage
E3	5 RD/BK	842	Battery Positive Voltage
F1	5 RD/BK	42	Battery Positive Voltage
F2	0.8 TN	294	Door Lock Actuator Unlock Control
F3	0.8 RD/WH	3840	Battery Positive Voltage
G1	0.8 GY	295	Door Lock Actuator Lock Control
G2	0.8 RD/WH	1040	Battery Positive Voltage
H1-H4	--	--	Not Used
H5	0.5 RD/WH	3240	Battery Positive Voltage
H6	0.5 RD/WH	4640	Battery Positive Voltage (UE1)
J1	0.8 RD/WH	2740	Battery Positive Voltage
J2	0.8 RD/WH	2240	Battery Positive Voltage
J3	0.8 RD/WH	2140	Battery Positive Voltage
K1	0.35 BN	6136	LED Dimming Supply
K2	0.35 YE	6817	LED Dimming Supply
K3-K6	--	--	Not Used

Fuse Block - I/P X2

Connector Part Information

OEM: 15467621
Service: 19115663
Description: 14-Way F GT 150/280 Series (GY)

Terminal Part Information

Pins: A1, B4, B7
Terminal/Tray: 15304711/8
Core/Insulation Crimp: Pins A1, B4 - 2/A
Core/Insulation Crimp: Pins B7 - E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A4, B1
Terminal/Tray: 15304713/19
Core/Insulation Crimp: Pins A4 - 4/4
Core/Insulation Crimp: Pins B1 - F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: B5
Terminal/Tray: 12191812/19
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Fuse Block - I/P X2

Pin	Wire	Circuit	Function
A1	0.8 RD/WH	6040	Battery Positive Voltage
A2-A3	--	--	Not Used
A4	2 RD/WH	2040	Battery Positive Voltage (SUV)
A5-A7	--	--	Not Used
B1	3 RD/WH	1240	Battery Positive Voltage
B2-B3	--	--	Not Used
B4	0.8 RD/WH	4840	Battery Positive Voltage
B5	0.35 RD/WH	1540	Battery Positive Voltage
B6	--	--	Not Used
B7	0.5 RD/WH	1140	Battery Positive Voltage

Fuse Block - I/P X3

Connector Part Information

OEM: 15467620
Service: 19115662
Description: 14-Way F GT 150/280 Series (BK)

Terminal Part Information

Pins: A2, A3
Terminal/Tray: 12191812/19
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: B1, B4
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Pins: B1, B4
Terminal/Tray: 15304711/8
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A7
Terminal/Tray: 15304713/19
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - I/P X3

Pin	Wire	Circuit	Function
A1	--	--	Not Used
A2	0.35 L-BU	195	Rear Door Lock Switch Signal
A3	0.35 WH	194	Door Unlock Control
A4-A6	--	--	Not Used
A7	3 RD/WH	1740	Battery Positive Voltage (SUV)
B1	0.8 TN	294	Door Lock Actuator Unlock Control
B1	0.8 TN	294	Door Lock Actuator Unlock Control
B2-B3	--	--	Not Used
B4	0.8 GY	295	Door Lock Actuator Lock Control
B4	0.8 GY	295	Door Lock Actuator Lock Control
B5-B7	--	--	Not Used

Fuse Block - I/P X4

Connector Part Information

OEM: 15467622
Service: 19115664
Description: 14-Way F GT 150/280 Series (L-GY)

Terminal Part Information

Pins: A1, B1
Terminal/Tray: 15304713/19
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A2, A5, B5, B6
Terminal/Tray: 12191812/19
Core/Insulation Crimp: Pins A2, A5 - E/C
Core/Insulation Crimp: Pins B5, B6 - C/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: B4, B7
Terminal/Tray: 15304711/8
Core/Insulation Crimp: Pins B4 - 2/A
Core/Insulation Crimp: Pins B7 - E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - I/P X4

Pin	Wire	Circuit	Function
A1	3 RD/WH	1240	Battery Positive Voltage
A2	0.35 D-GN	5060	Low Speed GMLAN Serial Data
A3-A4	--	--	Not Used
A5	0.35 PK	1691	Automatic Day/Night Mirror Low Reference
A6-A7	--	--	Not Used
B1	3 BK	1850	Ground
B2-B3	--	--	Not Used
B4	0.8 RD/WH	140	Battery Positive Voltage
B5	0.8 GY	118	Left Front Speaker Output (-)
B6	0.8 TN	201	Left Front Speaker Output (+)
B7	0.35 GY	1690	Automatic Day/Night Mirror Signal

Junction Block - Battery Cable

Terminal Part Information

Terminal: 08900947
Core/Insulation Crimp: N/A
Description: Ring Terminal

Junction Block - Battery Cable

Pin	Wire	Circuit	Function
A	32 RD	1	Battery Positive Voltage

Junction Block - Left I/P, Label

Junction Block - Left I/P, Device Usage

Device	Rating	Description
DRIVER SEAT 2 Circuit Breaker	25A	Memory Seat Module - Driver
PASS SEAT 1 Circuit Breaker	25A	Seat Adjuster Switch - Passenger, Seat Lumbar Adjuster Switch - Passenger
PWR REAR WNDW Circuit Breaker	25A	Window Motor - Midgate
RT DOORS Circuit Breaker	25A	Door Lock/Window Switch - Passenger, Window Switch - Right Rear
Important: Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block.
PARK ENABLE PCB Relay	--	I/P Multifunction Switch Assembly

Junction Block - Left I/P, Top View

Junction Block - Left I/P, Bottom View

Junction Block - Left I/P X1

Connector Part Information

OEM: 15467568
Service: 19115661
Description: 50-Way F GT 280 Series (GY)

Terminal Part Information

Pins: A1, A3, A4, B3, B4, C1, C2, E3, G1, H1, K1, K3, L1-L4, M1-M5, N1-N3, N5, P1-P3, P5
Terminal/Tray: 15304711/8
Core/Insulation Crimp: Pins A1, A3, A4, C1, H1, K1, K3, L1-L4, M1-M5, N1-N3, N5, P1-P3, P5 - E/A
Core/Insulation Crimp: Pins B3, B4, C2, E3, G1 - 2/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: F1
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Pins: D1, K2
Terminal/Tray: 15304713/19
Core/Insulation Crimp: Pins D1 - F/D
Core/Insulation Crimp: Pins K2 - 4/4
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X1

Pin	Wire	Circuit	Function
A1	0.5 RD/WH	4440	Battery Positive Voltage
A2	--	--	Not Used
A3	0.5 PK	239	Ignition 1 Voltage
A3	0.5 PK	239	Ignition 1 Voltage
A4	0.35 PK	239	Ignition 1 Voltage
A4	0.5 PK	239	Ignition 1 Voltage
A5	--	--	Not Used
B1-B2	--	--	Not Used
B3	1 BK	2550	Ground
B4	0.8 GY	157	Courtesy Lamp Control
B5	--	--	Not Used
C1	0.5 PK	1639	Ignition 1 Voltage
C2	0.8 BN/WH	230	Instrument Panel Lamps Dimming Control
C3-C5	--	--	Not Used
D1	3 RD/WH	1340	Battery Positive Voltage
D2-D5	--	--	Not Used
E1-E2	--	--	Not Used
E3	0.5 BK/WH	1851	Ground
E3	0.8 BK/WH	1851	Ground
F1	5 RD/BK	642	Battery Positive Voltage
G1	0.8 BK/WH	1851	Ground
G1	0.8 BK/WH	1851	Ground
H1	0.5 BK/WH	1851	Ground
H1	0.5 BK/WH	1851	Ground
J1	--	--	Not Used
K1	0.35 BK/WH	1851	Ground
K1	0.5 BK/WH	1851	Ground
K2	2 BK/WH	1851	Ground
K3	0.5 BK/WH	1851	Ground
L1	0.5 OG	6815	Inadvertent Power Supply Voltage
L2	0.35 RD/WH	1540	Battery Positive Voltage (UG1)
L3	0.35 PU/WH	6816	Indicator Dimming Control
L4	0.35 WH/BK	5515	Inside Air Temperature Sensor Assembly Control
L5	--	--	Not Used
M1	0.35 BN/WH	230	Instrument Panel Lamps Dimming Control
M2	0.35 PK	1691	Automatic Day/Night Mirror Low Reference
M3	0.35 PU/WH	6816	Indicator Dimming Control
M4	0.35 D-GN	734	Inside Air Temperature Sensor Signal
M5	0.5 L-BU	1320	CHMSL Supply Voltage
N1	0.5 D-GN/WH	636	Ambient Air Temperature Sensor Signal
N2	0.5 YE	61	Low Reference
N3	0.35 PU/WH	6816	Indicator Dimming Control (CHW)
N4	--	--	Not Used
N5	0.5 PK	1139	Ignition 1 Voltage
N5	0.35 PK	1139	Ignition 1 Voltage
P1	0.35 D-BU	38	Backup Lamp Relay Control
P2	0.35 GY	1690	Automatic Day/Night Mirror Signal
P3	0.35 PU/WH	6816	Indicator Dimming Control
P4	--	--	Not Used
P5	0.35 D-GN	6101	Low Reference

Junction Block - Left I/P X2

Connector Part Information

OEM: 15467567
Service: 19149284
Description: 50-Way F GT 280 Series (BK)

Terminal Part Information

Pins: A1, A2, B5, D3, H1, K1-K3, L3-L5, M5, N1, N3, N5, P3, P5
Terminal/Tray: 15304711/8
Core/Insulation Crimp: Pins A1, A2, B5, H1, K1-K3, L3-L5, M5, N1, N3, N5, P3, P5 - E/A
Core/Insulation Crimp: Pins D3 - 2/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: B1, D1
Terminal/Tray: 15304713/19
Core/Insulation Crimp: Pins B1 - F/D
Core/Insulation Crimp: Pins D1 - 4/4
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X2

Pin	Wire	Circuit	Function
A1	0.5 PK	739	Ignition 1 Voltage
A2	0.35 YE	643	Accessory Voltage
A3-A5	--	--	Not Used
B1	3 RD/WH	2340	Battery Positive Voltage
B2-B4	--	--	Not Used
B5	0.5 RD/WH	3240	Battery Positive Voltage (U42)
B5	0.5 RD/WH	3240	Battery Positive Voltage
C1-C5	--	--	Not Used
D1	2 BK	1050	Ground
D2	--	--	Not Used
D3	0.8 RD/WH	4540	Battery Positive Voltage
D4-D5	--	--	Not Used
E1-E3	--	--	Not Used
F1	--	--	Not Used
G1	--	--	Not Used
H1	0.5 D-GN/WH	817	Vehicle Speed Signal
J1	--	--	Not Used
K1	0.35 YE	6817	LED Dimming Supply
K2	0.35 YE	6817	LED Dimming Supply
K3	0.35 D-GN	5060	Low Speed GMLAN Serial Data
L1-L2	--	--	Not Used
L3	0.35 YE	6817	LED Dimming Supply (SUV)
L3	0.35 YE	6817	LED Dimming Supply (SUV)
L4	0.35 YE	6817	LED Dimming Supply
L4	0.35 YE	6817	LED Dimming Supply
L5	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
L5	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
M1 -M4	--	--	Not Used
M5	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
M5	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
N1	0.35 D-BU	2307	Passenger Air Bag On Indicator Control
N2	--	--	Not Used
N3	0.35 YE	6817	LED Dimming Supply
N4	--	--	Not Used
N5	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
P1	0.35 PU	5234	Passenger Seat Belt Indicator
P2	--	--	Not Used
P3	0.35 D-GN	2308	Passenger Air Bag Off Indicator Control
P4	--	--	Not Used
P5	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+

Junction Block - Left I/P X3

Connector Part Information

OEM: 13516840
Service: 19149295
Description: 8-Way F GT 280 Series (GN)

Terminal Part Information

Pins: 1, 3, 4, 5, 7
Terminal/Tray: 13525970/4
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: 2
Terminal/Tray: 13525969/4
Core/Insulation Crimp: 4/4
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X3

Pin	Wire	Circuit	Function
1	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
2	2 BK	1050	Ground
3	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
4	0.35 YE	6817	LED Dimming Supply
5	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
6	--	--	Not Used
7	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
8	--	--	Not Used

Junction Block - Left I/P X4

Connector Part Information

OEM: 13516829
Service: 19115667
Description: 8-Way F GT 280 Series (OG)

Terminal Part Information

Pins: 1, 3, 4-7
Terminal/Tray: 13525970/4
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X4

Pin	Wire	Circuit	Function
1	0.35 D-GN	5060	Low Speed GMLAN Serial Data
2	--	--	Not Used
3	0.5 D-GN/WH	817	Vehicle Speed Signal (UVB)
4	0.5 BK	2550	Ground
4	0.5 BK	2550	Ground
5	0.5 BK	2550	Ground (U2K)
5	0.5 BK	2550	Ground (UE1)
6	0.5 RD/WH	3240	Battery Positive Voltage (U42)
7	0.5 BK	2550	Ground (U42)
8	--	--	Not Used

Junction Block - Left I/P X5 (SPO Alarm)

Connector Part Information

OEM: 12194033
Service: 12194033
Description: 4-Way F Metri-Pack 280 Series, Flexlock (CR)

Terminal Part Information

Pins: See Catalog
Terminal/Tray: See Catalog
Core/Insulation Crimp: See Catalog
Release Tool/Test Probe: See Catalog

Junction Block - Left I/P X5 (SPO Alarm)

Pin	Wire	Circuit	Function
A-C	--	--	Not Used
D	0.5 RD/WH	4540	Battery Positive Voltage

Junction Block - Left I/P X8

Connector Part Information

OEM: 13516835
Service: See Catalog
Description: 8-Way F GT 280 Series (GN)

Terminal Part Information

Pins: 3, 4, 6, 7
Terminal/Tray: 13525970/4
Core/Insulation Crimp: Pins 3 - 2/A
Core/Insulation Crimp: Pins 4, 6, 7 - E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X8

Pin	Wire	Circuit	Function
1-2	--	--	Not Used
3	1 BK	1050	Ground
4	0.5 YE	643	Accessory Voltage (CF5)
5	0.35 PU	5234	Passenger Seat Belt Indicator
6	0.35 D-BU	2307	Passenger Air Bag On Indicator Control
7	0.35 D-GN	2308	Passenger Air Bag Off Indicator Control
8	--	--	Not Used

Junction Block - Left I/P X9

Connector Part Information

OEM: 13516831
Service: 19149289
Description: 8-Way F GT 280 Series (BK)

Terminal Part Information

Pins: 1, 2, 4, 5, 7, 8
Terminal/Tray: 13525970/4
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: 8
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Junction Block - Left I/P X9

Pin	Wire	Circuit	Function
1	0.35 PK	1639	Ignition 1 Voltage
2	0.35 WH/BK	5515	Inside Air Temperature Sensor Assembly Control
3	--	--	Not Used
4	0.35 D-GN	734	Inside Air Temperature Sensor Signal
5	0.35 PK	1139	Ignition 1 Voltage
6	--	--	Not Used
7	0.35 D-GN	6101	Low Reference
8	0.5 GY	157	Courtesy Lamp Control
8	0.5 GY	157	Courtesy Lamp Control

Junction Block - Left I/P X10

Connector Part Information

OEM: 13516830
Service: 19149291
Description: 8-Way F GT 280 Series (GY)

Terminal Part Information

Terminal/Tray: 13525970/4
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X10

Pin	Wire	Circuit	Function
1	0.35 RD/WH	1540	Battery Positive Voltage (UG1)
2	0.35 OG	6815	Inadvertent Power Supply Voltage
3	0.35 PK	1691	Automatic Day/Night Mirror Low Reference
4	0.35 BN/WH	230	Instrument Panel Lamps Dimming Control (CF5)
5	0.35 YE	61	Low Reference
6	0.35 D-GN/WH	636	Ambient Air Temperature Sensor Signal
7	0.35 GY	1690	Automatic Day/Night Mirror Signal
8	0.35 D-BU	38	Backup Lamp Relay Control

Junction Block - Left I/P X11

Connector Part Information

OEM: 13516833
Service: 19115668
Description: 8-Way F GT 280 Series (L-GY)

Terminal Part Information

Pins: 1, 2
Terminal/Tray: 13525969/4
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: 3, 4, 6-8
Terminal/Tray: 13525970/4
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X11

Pin	Wire	Circuit	Function
1	3 RD/WH	1340	Battery Positive Voltage
2	3 RD/WH	1440	Battery Positive Voltage
3	0.35 PK	1639	Ignition 1 Voltage (SUV)
4	0.35 BN/WH	230	Instrument Panel Lamps Dimming Control
4	0.35 BN/WH	230	Instrument Panel Lamps Dimming Control
5	--	--	Not Used
6	0.35 PK	1139	Ignition 1 Voltage
7	0.5 RD/WH	4440	Battery Positive Voltage
8	0.5 RD/WH	4440	Battery Positive Voltage

Junction Block - Left I/P X12

Connector Part Information

OEM: 13516834
Service: 19149292
Description: 8-Way F GT 280 Series (BN)

Terminal Part Information

Pins: 1, 2, 8
Terminal/Tray: 13525969/4
Core/Insulation Crimp: Pins 1 - F/D
Core/Insulation Crimp: Pins 2, 8 - 4/4
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: 3, 5
Terminal/Tray: 13525970/4
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Left I/P X12

Pin	Wire	Circuit	Function
1	3 RD/WH	5040	Battery Positive Voltage
2	2 RD/WH	3540	Battery Positive Voltage (SUT)
3	0.5 L-BU	1320	CHMSL Supply Voltage
4	--	--	Not Used
5	0.5 GY	157	Courtesy Lamp Control
5	0.5 GY	157	Courtesy Lamp Control (SUV)
6-7	--	--	Not Used
8	2 BK	2550	Ground

Junction Block - Right I/P, Top View

Junction Block - Right I/P X1 (Wire Entry)

Connector Part Information

OEM: 15489487
Service: See Catalog
Description: 50-Way GT 150 280 Metri-Pack 630 Series (BK)

Terminal Part Information

Pins: 2A7, 4A1, 4A4, 4A7, 5B, 6B
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Pins: 3B1, 4A2, 4A3, 4A5, 4A6, 4B2, 4B3, 4B5, 4B6, 5A, 5C-5F
Terminal/Tray: 15304722/8
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-5 (PU)

Pins: 2B2, 3A2, 3B2
Terminal/Tray: 15304702/19
Core/Insulation Crimp: Pins 2B2 - E/4
Core/Insulation Crimp: Pins 3A2, 3B2 - 2/4
Release Tool/Test Probe: 15315247/J-35616-3 (GY)

Pins: 3A1, 3B4
Terminal/Tray: 15304724/8
Core/Insulation Crimp: Pins 3A1 - 2/A
Core/Insulation Crimp: Pins 3B4 - A/D
Release Tool/Test Probe: 15315247/J-35616-5 (PU)

Pins: 6A, 6B
Terminal/Tray: 12066493/3
Core/Insulation Crimp: Pins 6A - B/G
Core/Insulation Crimp: Pins 6B - F/G
Release Tool/Test Probe: 12094430/J-35616-43 (RD)

Junction Block - Right I/P X1 (Wire Entry)

Pin	Wire	Circuit	Function
2A1-2A6	--	--	Not Used
2A7	--	--	Ground Bus
2B1	--	--	Not Used
2B2	0.5 BN	2509	Left Rear Park Lamps Supply Voltage
2B3-2B7	--	--	Not Used
3A1	0.8 D-GN	117	Right Front Speaker Output (-)
3A2	0.8 L-GN	200	Right Front Speaker Output (+)
3A3-3A6	--	--	Not Used
3A7	--	--	Ground Bus
3B1	0.35 D-GN	5060	Low Speed GMLAN Serial Data
3B2	0.8 RD/WH	240	Battery Positive Voltage
3B3	--	--	Not Used
3B4	3 RD/WH	1340	Battery Positive Voltage
3B5-3B6	--	--	Not Used
3B7	--	--	Ground Bus
4A1	--	--	5-Volt Reference Bus
4A2	0.35 TN	520	Lower Right Air Temperature Sensor Signal
4A3	0.35 TN	518	Lower Left Air Temperature Sensor Signal
4A4	--	--	Low Reference Bus
4A5	0.35 PU	1838	Recirculation Door Position Signal
4A6	0.35 GY/BK	754	Blower Motor Speed Control
4A7	--	--	Ground Bus
4B1	--	--	5-Volt Reference Bus
4B2	0.35 D-BU	1199	Auxiliary Air Temperature Door Position Signal
4B3	0.35 TN	2273	Mode Door Control
4B4	--	--	Low Reference Bus
4B5	0.35 YE/BK	713	Defrost/Heater Mode Valve Position Sensor Signal
4B6	0.35 L-BU	733	Left Air Temperature Door Control
4B7	--	--	Ground Bus
5A	0.35 D-GN	6101	Low Reference
5B	0.35 PK	839	Ignition 1 Voltage
5B	0.5 PK	839	Ignition 1 Voltage
5C	0.35 PK	839	Ignition 1 Voltage
5D	0.35 D-BU	1646	Right Air Temperature Door Position Signal
5E	0.35 WH/BK	1236	Right Air Temperature Door Control
5F	0.35 D-GN	1614	Recirculation Door Control
6A	5 RD/BK	542	Battery Positive Voltage
6B	3 BK	1050	Ground
6B	3 BK	1050	Ground

Junction Block - Right I/P X2

Connector Part Information

OEM: 15467621
Service: 19115663
Description: 14-Way F GT 150/280 Series (GY)

Terminal Part Information

Pins: A7
Terminal/Tray: 15304711/8
Core/Insulation Crimp: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: B2
Terminal/Tray: 12191812/19
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Junction Block - Right I/P X2

Pin	Wire	Circuit	Function
A1-A6	--	--	Not Used
A7	0.5 BK	1050	Ground
B1	--	--	Not Used
B2	0.5 BN	2509	Left Rear Park Lamps Supply Voltage
B3-B7	--	--	Not Used

Junction Block - Right I/P X3

Connector Part Information

OEM: 15467622
Service: 19115664
Description: 14-Way F GT 150/280 Series (L-GY)

Terminal Part Information

Pins: A1, B1
Terminal/Tray: 15304711/8
Core/Insulation Crimp: Pins A1 - 2/A
Core/Insulation Crimp: Pins B1 - E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A2, B2
Terminal/Tray: 12191812/19
Core/Insulation Crimp: C/A
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Pins: A7, B4
Terminal/Tray: 15304713/19
Core/Insulation Crimp: F/D
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Right I/P X3

Pin	Wire	Circuit	Function
A1	0.8 D-GN	117	Right Front Speaker Output (-)
A2	0.8 L-GN	200	Right Front Speaker Output (+)
A3-A6	--	--	Not Used
A7	3 BK	1050	Ground
B1	0.35 D-GN	5060	Low Speed GMLAN Serial Data
B2	0.8 RD/WH	240	Battery Positive Voltage
B3	--	--	Not Used
B4	3 RD/WH	1340	Battery Positive Voltage
B5-B7	--	--	Not Used

Junction Block - Right I/P X4

Connector Part Information

OEM: 15467620
Service: 19115662
Description: 14-Way F GT 150 280 Series (BK)

Terminal Part Information

Pins: A1, A4, B1, B4
Terminal/Tray: 15304711/8
Core/Insulation Crimp: 2/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: A2, A3, A5, A6, B2, B3, B5, B6
Terminal/Tray: 12191812/19
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Junction Block - Right I/P X4

Pin	Wire	Circuit	Function
A1	0.35 L-BU/BK	598	5-Volt Reference
A1	0.35 L-BU/BK	598	5-Volt Reference
A2	0.35 GY/BK	520	Lower Right Air Temperature Sensor Signal (CJ2)
A3	0.35 WH/BK	518	Lower Left Air Temperature Sensor Signal (CJ2)
A4	0.35 YE	1791	Low Reference
A4	0.35 YE	1791	Low Reference
A5	0.5 PU	1838	Recirculation Door Position Signal (CJ2)
A6	0.35 PU/WH	754	Blower Motor Speed Control
A7	--	--	Not Used
B1	0.35 L-BU/BK	598	5-Volt Reference
B1	0.35 L-BU/BK	598	5-Volt Reference
B2	0.35 D-BU	1199	Left Air Temperature Door Control
B3	0.35 TN	2273	Mode Door Control
B4	0.35 YE	1791	Low Reference
B4	0.35 YE	1791	Low Reference
B5	0.35 L-GN	713	Mode Door Position Signal
B6	0.35 L-BU	733	Left Air Temperature Door Position Signal
B7	--	--	Not Used

Junction Block - Right I/P X5

Connector Part Information

OEM: 15326900
Service: 15306380
Description: 6-Way F GT 280 Series (BK)

Terminal Part Information

Terminal/Tray: 15304711/8
Core/Insulation Crimp: Pins A-C: 2/A
Core/Insulation Crimp: Pins D-F: E/A
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Junction Block - Right I/P X5

Pin	Wire	Circuit	Function
A	0.5 BN	6101	Low Reference (CJ2)
A	0.5 BN	6101	Low Reference (CJ2)
B	0.35 BN	839	Ignition 1 Voltage
B	0.35 BN	839	Ignition 1 Voltage
C	0.35 BN	839	Ignition 1 Voltage
C	0.35 BN	839	Ignition 1 Voltage
D	0.35 D-BU	1646	Right Air Temperature Door Position Signal
E	0.35 WH/BK	1236	Right Air Temperature Door Control
F	0.35 D-GN	1614	Recirculation Door Control

Junction Block - Right I/P X6

Connector Part Information

OEM: 12129939
Service: 15306380
Description: 2-Way F Metri-Pack 630 Series (BK)

Terminal Part Information

Terminal/Tray: 12084590/3
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12094430/J-35616-42 (RD)

Junction Block - Right I/P X6

Pin	Wire	Circuit	Function
A	3 RD	542	Battery Positive Voltage
B	3 BK	1050	Ground