Powertrain Control Module (PCM) Connector End View C3

Fig 1: PCM C3 Connector End View

Courtesy of GENERAL MOTORS CORP.

PCM C3 Connector Part Information

Connector Part Information  OEM: 15437820 Service: 88953347 Description: 56-Way F Micro-Pack 64 Series Sealed (GY)

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

PCM C3 Connector End View

Pin	Wire Color	Circuit No.	Function
1-3	-	-	Not Used
4	TN/WH	1669	HO2S Low Signal - Sensor 2
5	YE/BK	1227	TFT Sensor Signal
6	YE	492	MAF Sensor Signal
7	-	-	Not Used
8	BK/WH	1423	HO2S Heater Low Control - Sensor 2
9-10	-	-	Not Used
11	RD/BK	1230	AT ISS High Signal
12	YE	400	VSS High Signal
13-14	-	-	Not Used
15	GY	773	Transmission Range Switch Signal C
16-18	-	-	Not Used
19	PU/WH	1668	HO2S High Signal - Sensor 2
20	TN/BK	464	Delivered Torque Signal (JL9)
21	-	-	Not Used
22	YE	772	Transmission Range Switch Signal B
23	WH	776	Transmission Range Switch Signal P
24	WH	1804	TCC Release Switch Signal
25	-	-	Not Used
26	TN	472	IAT Sensor Signal
27-32	-	-	Not Used
33	L-GN	1222	1-2 Shift Solenoid Valve Control
34	BK/WH	771	Transmission Range Switch Signal A
35-38	-	-	Not Used
39	BN	418	TCC PWM Solenoid Valve Control
40	OG/BK	463	Requested Torque Signal (JL9)
41-43	-	-	Not Used
44	PU	401	VSS Low Signal
45	-	-	Not Used
46	YE/BK	1223	2-3 Shift Solenoid Valve Control
47	RD/BK	1228	PC Solenoid Valve High Control
48	BK	452	Low Reference
49	D-BU/WH	1231	AT ISS Low Signal
50	BK	2760	Low Reference
51	L-BU/WH	1229	PC Solenoid Valve Low Control
52-56	-	-	Not Used