Engine Control Module Connector End Views. GMC Truck Sierra Classic

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Engine Control Module Connector End Views

Connector 1:	Engine Control Module (ECM) - C1
Connector 2:	Engine Control Module (ECM) - C2

Engine Control Module (ECM) - C1

Connector Part Information

OEM: 15438366
Service: 89046933
Description: 96-Way F Sealed (BK)

Terminal Part Information

Terminal/Tray: 1928498135/19
Core/Insulation Crimp: Pins 1-3, 8, 9, 25-27, 31, 49-51, 60, 73-75, 77, 84 - See Terminal Repair Kit
Core/Insulation Crimp: Pins 6, 7, 10-13, 15, 18- 21, 23, 24, 30, 32, 34, 37-42, 44, 47, 48, 53, 55-58, 61-63, 65-68, 71, 72, 76, 78, 79, 82, 85, 86, 88, 92, 96 - P/P
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Engine Control Module (ECM) - C1

Pin	Wire Color	Circuit No.	Function
1	OG	5421	Injector Positive Voltage Control Group 1
2	D-BU/WH	878	Fuel Injector 8 Control
3	RD/BK	877	Fuel Injector 7 Control
4-5	--	--	Not Used
6	OG/BK	469	Low Reference
7	PU	806	Crank Voltage
8	YE	2522	PTO Engage Signal
9	BN	1174	Oil Level Switch Signal
10	GY/BK	87	Cruise Control Resume/Accel Switch Signal
11	GY/BK	6272	Low Reference
12	GY	2704	5-Volt Reference
13	TN	5928	5-Volt Reference
14	--	--	Not Used
15	GY	2705	5-Volt Reference
16-17	--	--	Not Used
18	YE	492	MAF Sensor Signal
19	L-GN	432	Turbocharger Boost Sensor Signal
20	YE	5947	Turbocharger Vane Position Sensor Signal
21	L-BU	1162	APP Sensor 2 Signal
22	--	--	Not Used
23	BK	2755	Low Reference
24	PU/WH	2530	Fuel Pressure Regulator Solenoid Supply Voltage
25	PK	5425	Injector Positive Voltage Control Group 4
26	YE/BK	846	Fuel Injector 6 Control
27	PK/BK	1746	Fuel Injector 3 Control
28-29	--	--	Not Used
30	OG/BK	2919	Low Reference
31	L-BU	494	Engine Shutoff Signal (PTO w/A/T)
32	GY	48	CPP Switch Signal
33	--	--	Not Used
34	D-BU	84	Cruise Control Set/Coast Switch Signal
35-36	--	--	Not Used
37	GY	2703	5-Volt Reference
38	TN	1274	5-Volt Reference
39	TN	2917	5-Volt Reference
40	PU/WH	6270	5-Volt Reference
41	RD	6259	5-Volt Reference
42	TN	472	IAT Sensor Signal
43	--	--	Not Used
44	TN/WH	332	Oil Pressure Sensor Signal
45-46	--	--	Not Used
47	GY	720	Low Reference
48	D-BU	5930	Turbocharger Vane Position Control Solenoid Valve High Control
49	PU	5423	Injector Positive Voltage Control Group 3
50	BK/WH	845	Fuel Injector 5 Control
51	L-BU/BK	844	Fuel Injector 4 Control
52	--	--	Not Used
53	YE/BK	6120	Low Reference
54	--	--	Not Used
55	GY/BK	2931	Low Reference
56	D-BU/WH	6265	CMP Sensor Signal
57	GY/BK	1694	4WD Low Signal
58	L-GN	1478	Coolant Level Switch Signal
59	--	--	Not Used
60	L-GN	488	PTO On Switch Signal
61	GY	397	Cruise Control ON Switch Signal
62	BK	552	Low Reference
63	OG/BK	5929	Low Reference
64	--	--	Not Used
65	L-BU	6118	IAT Sensor 2 Signal
66	--	--	Not Used
67	BN/WH	5763	EGR Valve Position Signal
68	YE	410	ECT Sensor Signal
69-70	--	--	Not Used
71	YE/BK	625	Starter Enable Relay Control
72	YE	2834	Fuel Pressure Regulator Solenoid Control
73	YE	5422	Injector Positive Voltage Control Group 2
74	BK	1744	Fuel Injector 1 Control
75	L-GN/BK	1745	Fuel Injector 2 Control
76	PK	1039	Ignition 1 Voltage
77	OG	440	Battery Positive Voltage
78	PU	1272	Low Reference
79	WH/BK	6271	CKP Sensor Signal
80-81	--	--	Not Used
82	BK/WH	1695	Axle Switch Signal
83	--	--	Not Used
84	GY	1524	Backup Lamp Supply Voltage
85	YE/BK	508	Water In Fuel Indicator Control
86	BK	2754	Low Reference
87	--	--	Not Used
88	BN	6266	Low Reference
89-91	--	--	Not Used
92	YE	2918	FRP Sensor Signal
93-95	--	--	Not Used
96	WH	5931	Turbocharger Vane Position Control Solenoid Valve Low Control

Engine Control Module (ECM) - C2

Connector Part Information

OEM: 15462694
Service: 88988935
Description: 58-Way F Sealed (BK)

Terminal Part Information

Pins: 1, 2, 3, 4, 5, 6
Terminal/Tray: 1928498059/24
Core/Insulation Crimp: C/5
Release Tool/Test Probe: J-38125-561/J-35616- 35(VT)

Terminal/Tray: 1928498135/19
Core/Insulation Crimp: Pins 9, 12, 13, 15, 16, 19, 21, 22, 27, 29-31, 33-36, 40, 42, 44-50, 54-58 - P/P
Core/Insulation Crimp: Pins 18, 23, 24, 38, 39 - See Terminal Repair Kit
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Engine Control Module (ECM) - C2

Pin	Wire Color	Circuit No.	Function
1	PK	339	Ignition 1 Voltage
2	BK/WH	451	Ground
3	PK	339	Ignition 1 Voltage
4	BK/WH	451	Ground
5	PK	339	Ignition 1 Voltage
6	BK/WH	451	Ground
7-8	--	--	Not Used
9	D-GN	1049	Class 2 Serial Data
10-11	--	--	Not Used
12	D-GN/WH	465	Fuel Pump Relay Control
13	BK	2751	Low Reference
14	--	--	Not Used
15	WH/BK	1164	5-Volt Reference
16	D-BU	507	Wait to Start Indicator Control
17	--	--	Not Used
18	PU	2562	PTO Control (PTO)
19	GY/BK	2219	ECM Relay Control
20	--	--	Not Used
21	PK	439	Ignition 1 Voltage
22	L-BU	1320	CHMSL Supply Voltage
23	BN	25	Charge Indicator Control
24	BN	2524	Generator 2 Turn On Signal (8X5/YF2)
25-26	--	--	Not Used
27	GY	2700	5-Volt Reference
28	--	--	Not Used
29	BN	1271	Low Reference
30	BN/WH	419	MIL Control
31	D-GN/WH	459	A/C Compressor Clutch Relay Control
32	--	--	Not Used
33	OG/BK	5764	EGR Motor High Control
34	BK	470	Low Reference
35	RD/BK	380	A/C Refrigerant Pressure Sensor Signal
36	PU/WH	1589	Fuel Level Sensor Signal - Primary
37	--	--	Not Used
38	GY	23	Generator Field Duty Cycle Signal
39	OG/BK	1786	Park/Neutral Signal (MW7)
40	PU	420	TCC Brake Switch/Cruise Control Release Switch Signal
41	--	--	Not Used
42	D-GN/WH	817	Vehicle Speed Signal
43	--	--	Not Used
44	TN	2501	High Speed GMLAN Serial Data Bus -
45	PU/WH	821	VSS High Signal (ML6)
45	YE	400	VSS High Signal (MW7)
46	L-GN/BK	5746	EGR Motor Low Control
47	BN	6062	Low Reference
48	YE	1578	Fuel Temperature Signal
49	D-BU	1161	APP Sensor 1 Signal
50	D-BU	1936	Fuel Level Sensor Signal - Secondary (Except NQZ)
51-53	--	--	Not Used
54	YE/BK	1827	Vehicle Speed Signal
55	WH	121	Engine Speed Signal
56	PK	1020	Ignition 0 Voltage
57	TN/WH	2500	High Speed GMLAN Serial Data Bus +
58	L-GN/BK	822	VSS Low Signal (ML6)