Automatic Transmission Related Connector End Views. GMC Truck TopKick C-Series (Conventional) C4/C5 2007

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 TopKick C-Series (Conventional) C4/C5 🢒 HVAC 🢒 HVAC - Manual 🢒 Automatic Transmission Related Connector End Views

Connector 1:	Automatic Transmission Input Shaft Speed (AT ISS) Sensor
Connector 2:	Automatic Transmission Shift Selector (Allison® MD)
Connector 3:	Overdrive Defeat Switch (Allison® LCT)
Connector 4:	Transmission Control Module (TCM) (Allison® LCT)
Connector 5:	Transmission Control Module (TCM) (Allison® MD)
Connector 6:	Turbine Shaft Speed (TSS) Sensor (Allison® LCT)
Connector 7:	Vehicle Speed Sensor (VSS)

Automatic Transmission Input Shaft Speed (AT ISS) Sensor

Connector Part Information

OEM: 15490464
Service: See Catalog
Description: 2-Way F GT 150 Series Sealed (BK)

Terminal Part Information

Terminal/Tray: 15326267/19
Core/Insulation Crimp: E/4
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Automatic Transmission Input Shaft Speed (AT ISS) Sensor

Pin	Wire Color	Circuit No.	Function
A	RD/BK	1230	AT ISS High Signal
B	D-BU/WH	1231	AT ISS Low Signal

Automatic Transmission Shift Selector (Allison® MD)

Connector Part Information

OEM: 12191065
Service: 88987977
Description: 16-Way F Micro Pack 100 Series Sealed (NA)

Terminal Part Information

Pins: 3, 5 Terminal/Tray: 12084913/5
Pins: 8,11,12,13,15 Terminal/Tray: 12084912/5
Core/Insulation Crimp: W/W
Release Tool/Test Probe: 12122523/J-35616-6 (BN)

Automatic Transmission Shift Selector (Allison® MD)

Pin	Wire Color	Circuit No.	Function
1-2	--	--	Not Used
3	GY	8	Instrument Panel Lamps Dimmer Switch Signal
4	--	--	Not Used
5	BK	450	Ground
6-7	--	--	Not Used
8	YE	2361	SAE J1939 Serial Data Bus+
9-10	--	--	Not Used
11	D-GN	1373	Transmission Shift Selector Mode Signal
12	PK	1020	Ignition 0 Voltage
13	OG	440	Battery Positive Voltage
14	--	--	Not Used
15	D-GN	2362	SAE J1939 Serial Data Bus-
16	--	--	Not Used

Overdrive Defeat Switch (Allison® LCT)

Connector Part Information

OEM: 12064762
Service: 12125665
Description: 6-Way F Metri-Pack 150 Series (WH)

Terminal Part Information

Terminal/Tray: 12064971/5
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Overdrive Defeat Switch (Allison® LCT)

Pin	Wire Color	Circuit No.	Function
A	BK	750	Ground
B	BK	750	Ground
C	TN/WH	2678	Overdrive Defeat Switch Signal
D	PK	239	Ignition 1 Voltage
E	BN	2509	Left Rear Park Lamps Supply Voltage
F	TN/WH	2678	Overdrive Defeat Switch Signal

Transmission Control Module (TCM) (Allison® LCT)

Connector Part Information

OEM: 13551663
Service: N/A
Description: 80-Way F Sealed (BK)

Terminal Part Information

Terminal/Tray: 33001-3004 / N/A
Core/Insulation Crimp: N/A
Release Tool/Test Probe: J-38125-217/J-35616-14 (GN)

Transmission Control Module (TCM) (Allison® LCT)

Pin	Wire Color	Circuit No.	Function
1	TN	1147	Transmission Shift Inhibit Signal
2	--	--	Not Used
3	TN	476	Low Reference
4	L-BU	1480	Transmission Power Take-Off Enable Signal
5	OG/BK	463	Requested Torque Signal (L18)
6	D-BU	6105	High Speed GMLAN Serial Data Bus+
7	--	--	Not Used
8	D-GN	2362	SAE J1939 Serial Data Bus- (w/o LLY)
9	BK/WH	351	Ground
10	OG	440	Battery Positive Voltage
11	D-GN/WH	2528	12-Volt Reference
12-13	--	--	Not Used
14	GY	773	Internal Mode Switch Signal C
15-16	--	--	Not Used
17	PK	1224	Transmission Fluid Pressure Switch Signal 1
18	L-BU	2221	Signal High - Rear
19	--	--	Not Used
20	L-BU	1984	Transmission Turbine Speed Switch Low Reference
21	--	--	Not Used
22	WH	2467	Unmanaged Torque Signal (L18)
23	YE	1479	A/T Neutral Signal
24-25	--	--	Not Used
26	TN/WH	6105	High Speed GMLAN Serial Data Bus+ (w/o LLY)
27	TN	6106	High Speed GMLAN Serial Data Bus-
28	--	--	Not Used
29	GY	1234	Do Not Shift Indicator Control
30-32	--	--	Not Used
33	YE/BK	2879	Shift Solenoid 2 Valve Control
34	WH	776	Internal Mode Switch Signal P
35	--	--	Not Used
36	BN/WH	2469	PCS Valve 2 Control
37	--	--	Not Used
38	OG	1786	Ignition Lock Cylinder Control Actuator Signal (LG4/LG5)
39	D-BU/WH	1231	AT ISS Low Signal
40	L-GN/BK	822	VSS Low Signal
41-42	--	--	Not Used
43	YE	2522	PTO Engaged Signal
44	TN/BK	464	Delivered Torque Signal (L18)
45	PU	1146	Range Indicator
46	YE	2470	Class 2 Serial Data
47	TN	6106	High Speed GMLAN Serial Data Bus- (LLY)
48	YE	2361	SAE J1939 Serial Data Bus+ (w/o LLY)
49-50	--	--	Not Used
51	OG/WH	2527	Shift Solenoid 3 Valve Control
52	PU	898	Shift Solenoid 1 Valve Control
53	YE	772	Internal Mode Switch Signal B
54	YE/BK	1227	TFT Sensor Signal
55	L-BU/WH	1229	PCS Valve 1 Control (L18/LLY)
55	PU	7581	Transmission Pressure Control Solenoid 1 (LG4/LG5)
56	--	--	Not Used
57	RD	1226	Transmission Fluid Pressure Switch Signal 3
58	BK	407	Low Reference
59	RD/BK	1230	AT ISS High Signal
60	PU/WH	821	VSS High Signal
61	TN/WH	2678	Overdrive Defeat Switch Signal
62	--	--	Not Used
63	PK	1020	Ignition 0 Voltage
64	--	--	Not Used
65	GY	1524	Backup Lamp Relay Control
66	D-BU	6105	High Speed GMLAN Serial Data Bus+ (LLY)
67-68	--	--	Not Used
69	BK/WH	351	Ground
70	OG	440	Battery Positive Voltage
71	BN	323	12-Volt Reference
72	--	--	Not Used
73	BK/WH	771	Internal Mode Switch Signal A
74	D-BU	1530	Transmission Mainline Pressure Solenoid Control
75	--	--	Not Used
76	PU	2471	Trans ID
77	L-GN/BK	2529	Transmission Fluid Pressure Switch Signal 4 (Reverse)
78	WH	1994	TCC PWM Solenoid Valve Control
79	D-BU	1225	Transmission Fluid Pressure Switch Signal 2
80	OG	1983	Transmission Turbine Speed Switch Signal

Transmission Control Module (TCM) (Allison® MD)

Connector Part Information

OEM: 13551663
Service: N/A
Description: 80-Way F Sealed (BK)

Terminal Part Information

Terminal/Tray: 33001-3004 / N/A
Core/Insulation Crimp: N/A
Release Tool/Test Probe: J-38125-217/J-35616-14 (GN)

Transmission Control Module (TCM) (Allison® MD)

Pin	Wire Color	Circuit No.	Function
1	TN	1147	Transmission Shift Inhibit Signal
2	--	--	Not Used
3	TN	476	Low Reference
4-5	--	--	Not Used
6	D-BU	6105	High Speed GMLAN Serial Data Bus+
7	--	--	Not Used
8	D-GN	2362	SAE J1939 Serial Data Bus-
9	BK/WH	351	Ground
10	OG	440	Battery Positive Voltage
11	BN	323	Shift Solenoid Supply Voltage
12	GY	598	5-Volt Reference
13-15	--	--	Not Used
16	WH	1971	Transmission Oil Level Sensor Signal
17	YE	1479	A/T Neutral Signal
18-19	--	--	Not Used
20	L-BU	1984	Transmission Turbine Speed Switch Low Reference
21	--	--	Not Used
22	TN/WH	981	Pump Enable
23	PU/WH	980	Pump Mode Request
24-25	--	--	Not Used
26	TN/WH	6105	High Speed GMLAN Serial Data Bus+
27	TN	6106	High Speed GMLAN Serial Data Bus-
28	--	--	Not Used
29	GY	1234	Do Not Shift Indicator Control
30	L-BU	1480	Transmission Power Take-Off Enable Signal
31	D-GN	1531	Shift Solenoid Supply Voltage (6)
32	--	--	Not Used
33	YE/BK	7579	Transmission Pressure Control Solenoid 3
34	D-GN	1373	Transmission Shift Selector Mode Signal
35	--	--	Not Used
36	PU	7581	Transmission Pressure Control Solenoid 1
37	WH	1994	Line Pressure Control Solenoid Valve High Control
38	--	--	Not Used
39	D-BU/WH	1231	AT ISS Low Signal
40	PU	401	VSS Low Signal
41	--	--	Not Used
42	YE	1481	Transmission Auxiliary Hold Signal
43	YE	2522	PTO Engaged Signal
44	--	--	Not Used
45	PU	1146	Range Indicator
46-47	--	--	Not Used
48	YE	2361	SAE J1939 Serial Data Bus+
49-50	--	--	Not Used
51	TN/WH	7578	Transmission Shift Solenoid (1)
52	YE	7580	Transmission Pressure Control Solenoid 2
53	--	--	Not Used
54	YE/BK	1227	TFT Sensor Signal
55	PU/BK	7582	Transmission Pressure Control Solenoid 4
56-57	--	--	Not Used
58	BK	407	Low Reference
59	RD/BK	1230	AT ISS High Signal
60	YE	400	VSS High Signal
61-62	--	--	Not Used
63	PK	1020	Ignition 0 Voltage
64	GY	1148	Transmission Shift Inhibit Signal
65	GY	1524	Backup Lamp Relay Control
66-68	--	--	Not Used
69	BK/WH	351	Ground
70	OG	440	Battery Positive Voltage
71	BN	323	12-Volt Reference
72-73	--	--	Not Used
74	D-BU	1530	Transmission Mainline Pressure Solenoid Control
75	--	--	Not Used
76	PU	2471	Trans ID
77	RD	1226	Transmission Fluid Pressure Switch Signal C
78-79	--	--	Not Used
80	OG	1983	Transmission Turbine Speed Switch Signal

Turbine Shaft Speed (TSS) Sensor (Allison® LCT)

Connector Part Information

OEM: 15490464
Service: See Catalog
Description: 2-Way F GT 150 Series Sealed (BK)

Terminal Part Information

Terminal/Tray: 15326267/19
Core/Insulation Crimp: E/4
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Turbine Shaft Speed (TSS) Sensor (Allison® LCT)

Pin	Wire Color	Circuit No.	Function
A	OG	1983	Transmission Turbine Speed Switch Signal
B	L-BU	1984	Transmission Turbine Speed Switch Low Reference

Vehicle Speed Sensor (VSS)

Connector Part Information

OEM: 15490464
Service: See Catalog
Description: 2-Way F GT 150 Series Sealed (BK)

Terminal Part Information

Terminal/Tray: 15326267/19
Core/Insulation Crimp: E/4
Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Vehicle Speed Sensor (VSS)

Pin	Wire Color	Circuit No.	Function
A	PU/WH	821	VSS High Signal (Allison® LCT)
A	YE	400	VSS High Signal (Allison® MD)
B	L-GN/BK	822	VSS Low Signal (Allison® LCT)
B	PU	401	VSS Low Signal (Allison® MD)