Powertrain Control Module (PCM) Connector End View C3 (w/o NU6)

Fig 1: PCM C3 Connector End View (w/o NU6)

Courtesy of GENERAL MOTORS CORP.

PCM C3 Connector Part Information (w/o NU6)

Connector Part Information  OEM: 15418487 Service: 88953347 Description: 56-Way F Micro-Pack/064 Series (GY)

Terminal Part Information  Pins: 4-8, 11, 12, 15, 19, 22-24, 26, 33, 34, 39, 44, 46-51 Terminal/Tray: 15359541/4 Core/Insulation Crimp: M/M Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU) Pins: 20, 38, 40 Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit

PCM C3 Connector Terminal Identification (w/o NU6)

Pin	Wire Color	Circuit No.	Function
1-3	-	-	Not Used
4	TN/WH	3121	HO2S Low Signal
5	YE/BK	1227	TFT Sensor Signal
6	YE	492	MAF Sensor Signal
7	-	-	Not Used
8	BK/WH	3122	HO2S Heater Low Control - Sensor 2
9-10	-	-	Not Used
11	RD/BK	1230	AT ISS High Signal
12	YE	400	Signal High - Front
13-14	-	-	Not Used
15	GY	773	Transmission Range Switch Signal C
16-18	-	-	Not Used
19	PU	3120	HO2S High Signal
20	TN/BK	464	Delivered Torque Signal (L32)
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
35-37	-	-	Not Used
38	GY	1724	Boost Control Solenoid Control (L32)
39	TN/BK	422	TCC Solenoid Valve Control
40	OG/BK	463	Requested Torque Signal (L32)
41-43	-	-	Not Used
44	PU	401	Signal Low - Front
45	-	-	Not Used
46	YE/BK	1223	2-3 Shift Solenoid Valve Control
47	RD/BK	1228	PC Solenoid Valve High Control (Sol. A)
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 (Sol. A)
52-56	-	-	Not Used