Engine Control Module Connector End Views (w/ Throttle Actuator Control)

Engine Control Module (ECM) C

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		AMP 0-368434-1 64-Way F ECU 64P Conn Assembly (32-bit-B) (BK)
Pin	Wire Color	Circuit No.	Function
1	BN/BK	543	5 Volt Reference
2	GY	605	5 Volt Reference
3	PU	1550	Low Reference
4	L-GN	413	Low Reference
5	PU/WH	632	Low Reference
6	BN	488	5 Volt Reference
7-8	-	-	Not Used
9	L-BU	1450	Low Reference
10-11	-	-	Not Used
12	PK/BK	1846	Ignition 1 Voltage
13	PK/BK	1846	Ignition 1 Voltage
14	-	-	Not Used
15	BN/WH	379	CPP Switch Signal (M/T)
16	-	-	Not Used
17	OG	440	Battery Positive Voltage
18	OG	440	Battery Positive Voltage
19	BK/WH	51	Ground
20	BK/WH	51	Ground
21	BK/WH	51	Ground
22	BK/WH	51	Ground
23-24	-	-	Not Used
25	D-GN/WH	762	A/C Request Signal
26	L-BU	20	Stop Lamp Switch Output
27	-	-	Not Used
28	BN	17	Stop Lamp Switch Output
29	WH	791	APP Sensor 2 Signal
30	L-BU	380	A/C Pressure Sensor Signal
31	PU	2000	Serial Data
32	-	-	Not Used
33	PK/D-BU	539	Ignition 1 Voltage
34	BK/WH	51	Ground
35	D-GN	67	A/C Clutch Relay Control
36	BK	441	Main Relay Control
37	WH	183	Cruise Indicator Control
38	D-GN/WH	817	Vehicle Speed Signal (M/T)
39-40	-	-	Not Used
41	GY	121	Engine Speed Signal
42	L-GN	465	Fuel Pump Relay Control
43	GY	1936	Fuel Level Sensor Signal
44	D-BU	790	APP Sensor 1 Signal
45	D-BU/WH	397	Cruise Control Switch Signal
46	PU	1807	CAN Serial Data High
47	YE/D-GN	890	Fuel Tank Pressure Sensor Signal
48	D-GN	602	Rough Road Sensor Signal w/o ABS
49	BN/WH	419	MIL Control
50	D-GN/WH	355	Low Speed Cooling Fan Relay Control
51-55	-	-	Not Used
56	D-GN	135	Engine Coolant Temperature Gauge Control
57	BN/BK	1671	Heated Oxygen Sensor (HO2S) 2 Heater Control
58-60	-	-	Not Used
61	WH	30	Fuel Gauge Control
62	PU	1670	Heated Oxygen Sensor (HO2S) 2 Signal
63	YE	710	CAN Serial Data Low
64	D-BU	876	Rough Road Signal w/ABS

Engine Control Module (ECM) E

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		AMP 1-368434-2 64-Way F ECU 64P Conn Assembly (32-bit-B) (BN)
Pin	Wire Color	Circuit No.	Function
1-2	-	-	Not Used
3	L-BU	406	Ignition Coil (IC) Timing Control 1 and 4
4	D-GN/WH	423	Ignition Coil (IC) Timing Control 2 and 3
5-6	-	-	Not Used
7	YE	45	Intake Manifold Tuning Valve Sensor Signal
8	YE	492	Intake Manifold Tuning Valve Control
9-14	-	-	Not Used
15	D-BU/RD	581	Electronic Throttle Control (ETC) (-)
16	D-BU/RD	581	Electronic Throttle Control (ETC) (-)
17-18	-	-	Not Used
19	L-BU	406	Ignition Coil (IC) Timing Control 1 and 4
20	D-GN/WH	423	Ignition Coil (IC) Timing Control 2 and 3
21	D-BU/WH	808	Low Reference
22	YE/BK	496	Knock Sensor Signal
23-24	-	-	Not Used
25	L-GN	410	Engine Coolant Temperature (ECT) Sensor Signal
26	D-GN/RK	1665	Heated Oxygen Sensor (HO2S) 1 Low Reference
27	-	-	Not Used
28	D-BU/WH	432	Manifold Absolute Pressure (MAP) Sensor Signal
29	GY	534	Throttle Position (TP) Sensor 2 Signal
30	GY	471	Intake Air Temperature (IAT) Sensor Signal
31	L-BU/WH	582	Electronic Throttle Control (ETC) (+)
32	L-BU/WH	582	Electronic Throttle Control (ETC) (+)
33	L-BU/BK	1688	5-Volt Reference
34	GY	1653	Heated Oxygen Sensor (HO2S) 1Signal
35	OG/BK	469	Low Reference
36	D-BU/WH	1869	Crankshaft Position (CKP) Sensor Signal
37	YE/BK	1868	Low Reference
38-40	-	-	Not Used
41	D-GNWH	417	Throttle Position (TP) Sensor 1 Signal
42	WH/BK	1456	Exhaust Gas Recirculation (EGR) Valve Position Sensor Signal
43-45	-	-	Not Used
46	PU	633	Camshaft Position (CMP) Sensor Signal
47-48	-	-	Not Used
49	BN/WH	1669	Heated Oxygen Sensor (HO2S) 1 Heater Control
50	D-BU/YE	474	5-Volt Reference
51	BK	808	Low Reference
52	BN	426	Low Reference
53	D-GN	435	Exhaust Gas Recirculation (EGR) Solenoid Valve Control
54	PK	139	Ignition 1 Voltage
55	D-GN/BK	1746	Fuel Injector 3 Control
56	BN/WH	1745	Fuel Injector2 Control
57-60	-	-	Not Used
61	L-BU/BK	1986	Evaporative Emissions (EVAP) Canister Vent Solenoid Control
62	WH	428	Evaporative Emissions (EVAP) Canister Purge Solenoid Control
63	YE/D-BU	1744	Fuel Injector 1 Control
64	D-GN/WH	844	Fuel Injector 4 Control