Powertrain Control Module (PCM) Connector End View C3

Fig 1: Powertrain Control Module (PCM) C3 Connector End Views

Courtesy of GENERAL MOTORS CORP.

Connector Part Information

Terminal Part Information

POWERTRAIN CONTROL MODULE (PCM) C3 TERMINAL IDENTIFICATION

Pin	Wire Color	Circuit No.	Function
1	-	-	Not Used
2	GY	773	Transmission Range Switch Signal C
3-5	-	-	Not Used
6	OG/BK	1228	PC Solenoid Valve High Control (Sol. A)
7	YE/BK	1227	TFT Sensor Signal
8-10	-	-	Not Used
11	OG/BK	1230	AT ISS High Signal
12-14	-	-	Not Used
15	TN/BK	231	Oil Pressure Switch Signal
16	-	-	Not Used
17	TN	2762	Low Reference
18-19	-	-	Not Used
20	TN/WH	771	Transmission Range Switch Signal A
21-28	-	-	Not Used
29	YE	657	Transmission Fluid Pressure Sensor Signal
30	OG	1226	Transmission Fluid Pressure Switch Signal C
31-32	-	-	Not Used
33	L-GN	1222	Shift Solenoid Valve 1 High Control
34	-	-	Not Used
35	YE/BK	1223	Shift Solenoid Valve 2 High Control
36	-	-	Not Used
37	D-GN/WH	428	EVAP Canister Purge Solenoid Control
39	BN	418	TCC PWM Solenoid Valve Control
40-42	-	-	Not Used
43	D-BU	1225	Transmission Fluid Pressure Switch Signal B
44	PU	401	Vehicle Speed Sensor Low Reference
45	YE	400	Vehicle Speed Sensor Signal
46-47	-	-	Not Used
48	L-BU/WH	1229	PC Solenoid Valve Low Control (Sol. A)
49	D-BU/WH	1231	A/T ISS Low Signal
50	YE	772	Transmission Range Switch Signal B
51	-	-	Not Used
52	WH	776	Transmission Range Switch Signal P
53-56	-	-	Not Used