Powertrain Control Module Connector End Views. Buick LaCrosse 2007

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2007 🢒 LaCrosse 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Powertrain Control Module Connector End Views

Connector 1:	Powertrain Control Module (PCM) C1 (NU6)
Connector 2:	Powertrain Control Module (PCM) C1 (w/o NU6)
Connector 3:	Powertrain Control Module (PCM) C2 (NU6)
Connector 4:	Powertrain Control Module (PCM) C2 (w/o NU6)
Connector 5:	Powertrain Control Module (PCM) C3 (NU6)
Connector 6:	Powertrain Control Module (PCM) C3 (W/O NU6)

Powertrain Control Module (PCM) C1 (NU6)

Connector Part Information

OEM: 15460473
Service: 88953346
Description: 56-Way F Micro-Pack 64 Series (BU)

Terminal Part Information

Pins: 4, 6- 8, 10, 12, 15, 18- 24, 26, 31- 34, 37, 43, 44, 48, 50, 53
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Powertrain Control Module (PCM) C1 (NU6)

Pin	Wire Color	Circuit No.	Function
1-3	--	--	Not Used
4	GY	2700	5-Volt Reference 1
5	--	--	Not Used
6	BN/WH	419	MIL Control
7	BK	2751	Low Reference
8	BK	2759	Low Reference
9	--	--	Not Used
10	WH	1310	EVAP Canister Vent Solenoid Valve Control
11	--	--	Not Used
12	BK	476	Low Reference
13-14	--	--	Not Used
15	D-GN	1049	PCM Class 2 Serial Data
16-17	--	--	Not Used
18	BN	1141	Ignition 3 Voltage
19	PK	439	Ignition 1 Voltage
20	OG	540	Battery Positive Voltage
21	WH	121	Engine Speed Signal (JL9)
22	D-GN	389	Vehicle Speed Signal
23	YE/BK	625	Starter Enable Relay Control
24	BN	5069	Powertrain Relay Control
25	--	--	Not Used
26	D-GN	890	Fuel Tank Pressure Sensor Signal
27-30	--	--	Not Used
31	RD/BK	380	A/C Refrigerant Pressure Sensor Signal
32	WH	17	Stop Lamp Switch Signal
33	D-GN/WH	459	A/C Compressor Clutch Relay Control
34	BN	436	Air Pump Relay Control
35-36	--	--	Not Used
37	D-GN/WH	465	Fuel Pump Relay Control
38-42	--	--	Not Used
43	PU	1589	Fuel Level Sensor Signal
44	GY	1884	Cruise Control Set/Coast and Resume/Accelerate Switch Signal
45-47	--	--	Not Used
48	D-GN	335	Low Speed Cooling Fan Relay Control
49	--	--	Not Used
50	D-BU	473	High Speed Cooling Fan Relay Control
51-52	--	--	Not Used
53	GY	2709	5-Volt Reference 1
54-56	--	--	Not Used

Powertrain Control Module (PCM) C1 (w/o NU6)

Connector Part Information

OEM: 15418488
Service: 88953346
Description: 56-Way F Micro-Pack 64 Series (BU)

Terminal Part Information

Pins: 4, 6- 8, 10, 15, 18, 19, 20, 22- 24, 26, 31-33, 37, 43, 44, 48, 50, 53
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Pins: 21
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Powertrain Control Module (PCM) C1 (w/o NU6)

Pin	Wire Color	Circuit No.	Function
1-3	--	--	Not Used
4	GY	2700	5-Volt Reference 1
5	--	--	Not Used
6	BN/WH	419	MIL Control
7	BK	2751	Low Reference
8	BK	2759	Low Reference
9	--	--	Not Used
10	WH	1310	EVAP Canister Vent Solenoid Valve Control
11-14	--	--	Not Used
15	D-GN	1049	PCM Class 2 Serial Data
16-17	--	--	Not Used
18	BN	1141	Ignition 3 Voltage
19	PK	439	Ignition 1 Voltage
20	OG	540	Battery Positive Voltage
21	WH	121	Engine Speed Signal (JL9)
22	D-GN	389	Vehicle Speed Signal
23	YE/BK	625	Starter Enable Relay Control
24	BN	5069	Powertrain Relay Control
25	--	--	Not Used
26	D-GN	890	Fuel Tank Pressure Sensor Signal
27-30	--	--	Not Used
31	RD/BK	380	A/C Refrigerant Pressure Sensor Signal
32	WH	17	Stop Lamp Switch Signal
33	D-GN/WH	459	A/C Compressor Clutch Relay Control
34-36	--	--	Not Used
37	D-GN/WH	465	Fuel Pump Relay Control
38-42	--	--	Not Used
43	PU	1589	Fuel Level Sensor Signal
44	GY	1884	Cruise Control Set/Coast and Resume/Accelerate Switch Signal
45-47	--	--	Not Used
48	D-GN	335	Low Speed Cooling Fan Relay Control
49	--	--	Not Used
50	D-BU	473	High Speed Cooling Fan Relay Control
51-52	--	--	Not Used
53	GY	2709	5-Volt Reference 1
54-56	--	--	Not Used

Powertrain Control Module (PCM) C2 (NU6)

Connector Part Information

OEM: 15460475
Service: 88953274
Description: 73-Way F Micro-Pack 64 Series (BK)

Terminal Part Information

Pins: 1-13, 16, 18, 26- 31, 33- 35, 37, 41, 45- 48, 53, 55, 57, 58, 59, 61
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Pins: 73
Terminal/Tray: 15304720/19
Core/Insulation Crimp: 4/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Powertrain Control Module (PCM) C2 (NU6)

Pin	Wire Color	Circuit No.	Function
1	BN	1456	EGR Valve Position Signal
2	OG/BK	1061	UART Serial Data Secondary
3	TN	800	UART Serial Data Primary
4	BK/WH	845	Fuel Injector 5 Control
5	BK	1744	Fuel Injector 1 Control
6	YE/BK	846	Fuel Injector 6 Control
7	PK/BK	1746	Fuel Injector 3 Control
8	BK	2753	Low Reference
9	L-GN/BK	1745	Fuel Injector 2 Control
10	L-BU/BK	844	Fuel Injector 4 Control
11	TN/BK	424	IC Timing Signal
12	BK/WH	3112	HO2S Heater Low Control Sensor 1
13	RD	1676	EGR Solenoid High Control
14-15	--	--	Not Used
16	GY	435	EGR Solenoid Low Control
17	--	--	Not Used
18	L-GN	432	MAP Sensor Signal
19-25	--	--	Not Used
26	BK	630	Camshaft Position Signal
27	PU/WH	430	Low Resolution Engine Speed Signal
28	L-BU/BK	647	Medium Resolution Engine Speed Signal
29	BK	2761	Low Reference
30	OG/BK	469	Low Reference
31	BN	1174	Oil Level Switch Signal
32	--	--	Not Used
33	GY	2702	5-Volt Reference 1
34	GY	2704	5-Volt Reference 2
35	GY	474	5 Volt Reference 1
36	--	--	Not Used
37	RD/BK	453	Low Reference
38-40	--	--	Not Used
41	D-GN/WH	428	EVAP Canister Purge Solenoid Valve Control
42-44	--	--	Not Used
45	GY	23	Generator Field Duty Cycle Signal
46	D-BU	496	Knock Sensor 1 Signal
47	TN/WH	3111	HO2S Low Signal
48	PU/WH	3110	HO2S High Signal
49-52	--	--	Not Used
53	RD	225	Generator Turn On Signal
54	--	--	Not Used
55	YE	410	ECT Sensor Signal
56	--	--	Not Used
57	TN/BK	231	Oil Pressure Switch Signal
58	L-BU	1876	Knock Sensor 2 Signal
59	PK/BK	429	Air Solenoid Control
60	--	--	Not Used
61	WH	423	IC Timing Control
62-72	--	--	Not Used
73	BK/WH	451	Ground

Powertrain Control Module (PCM) C2 (w/o NU6)

Connector Part Information

OEM: 15462060
Service: 88953274
Description: 73-Way F Micro-Pack 64 Series (BK)

Terminal Part Information

Pins: 1-13, 16, 18, 26-31, 33, 34, 37, 41, 45-48, 53, 55, 57, 58, 61
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Pins: 73
Terminal/Tray: 15304720/19
Core/Insulation Crimp: 4/5
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Powertrain Control Module (PCM) C2 (w/o NU6)

Pin	Wire Color	Circuit No.	Function
1	BN	1456	EGR Valve Position Signal
2	OG/BK	1061	UART Serial Data Secondary
3	TN	800	UART Serial Data Primary
4	BK/WH	845	Fuel Injector 5 Control
5	BK	1744	Fuel Injector 1 Control
6	YE/BK	846	Fuel Injector 6 Control
7	PK/BK	1746	Fuel Injector 3 Control
8	BK	2753	Low Reference
9	L-GN/BK	1745	Fuel Injector 2 Control
10	L-BU/BK	844	Fuel Injector 4 Control
11	TN/BK	424	IC Timing Signal
12	BK/WH	3112	HO2S Heater Low Control Sensor 1
13	RD	1676	EGR Solenoid High Control
14-15	--	--	Not Used
16	GY	435	EGR Solenoid Low Control
17	--	--	Not Used
18	L-GN	432	MAP Sensor Signal
19-25	--	--	Not Used
26	BK	630	Camshaft Position Signal
27	PU/WH	430	Low Resolution Engine Speed Signal
28	L-BU/BK	647	Medium Resolution Engine Speed Signal
29	BK	2761	Low Reference
30	OG/BK	469	Low Reference
31	BN	1174	Oil Level Switch Signal
32	--	--	Not Used
33	GY	2702	5-Volt Reference 1
34	GY	2704	5-Volt Reference 2
35-36	--	--	Not Used
37	RD/BK	453	Low Reference
38-40	--	--	Not Used
41	D-GN/WH	428	EVAP Canister Purge Solenoid Valve Control
42-44	--	--	Not Used
45	GY	23	Generator Field Duty Cycle Signal
46	D-BU	496	Knock Sensor 1 Signal
47	TN/WH	3111	HO2S Low Signal
48	PU/WH	3110	HO2S High Signal
49-52	--	--	Not Used
53	RD	225	Generator Turn On Signal
54	--	--	Not Used
55	YE	410	ECT Sensor Signal
56	--	--	Not Used
57	TN/BK	231	Oil Pressure Switch Signal
58	L-BU	1876	Knock Sensor 2 Signal
59-60	--	--	Not Used
61	WH	423	IC Timing Control
62-72	--	--	Not Used
73	BK/WH	451	Ground

Powertrain Control Module (PCM) C3 (NU6)

Connector Part Information

OEM: 15460474
Service: 88953347
Description: 56-Way F Micro-Pack 64 Series (GY)

Terminal Part Information

Pins: 4- 6, 8, 11, 12, 15, 19, 22-24, 26, 31, 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)

Powertrain Control Module (PCM) C3 (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	VSS High Signal
13-14	--	--	Not Used
15	GY	773	Transmission Range Switch Signal C
16-18	--	--	Not Used
19	PU	3120	HO2S High Signal
20-21	--	--	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
27-30	--	--	Not Used
31	WH	5268	Air Pressure Sensor
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	TN/BK	422	TCC Solenoid Valve Control
40-43	--	--	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 (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

Powertrain Control Module (PCM) C3 (W/O NU6)

Connector Part Information

OEM: 15418487
Service: 88953347
Description: 56-Way F Micro-Pack 64 Series (GY)

Terminal Part Information

Pins: 4- 6, 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)

Powertrain Control Module (PCM) C3 (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	VSS High Signal
13-14	--	--	Not Used
15	GY	773	Transmission Range Switch Signal C
16-18	--	--	Not Used
19	PU	3120	HO2S High Signal
20-21	--	--	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	TN/BK	422	TCC Solenoid Valve Control
40-43	--	--	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 (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