Engine Control Module (ECM) C1 Connector End View

Fig 1: ECM C1 Connector View

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) Connector End Views

Connector Part Information  OEM: 12582680 Service: See Catalog Description: 56-Way F (GY)

Terminal Part Information  Pins: Terminal: TBD Core/Insulation Crimp: TBD Release Tool/Test Probe: TBD

Engine Control Module (ECM) C1

Pin	Wire Color	Circuit No.	Function
1-5	-	-	Not Used
6	BN/WH	379	Cruise Control Clutch Pedal Position Switch Signal (LE5 w/MA5)
7	L-BU	20	Stop Lamp Supply Voltage
8	-	-	Not Used
9	TN	2759	Fuel Tank Pressure Sensor Low Reference (LE5)
10-11	-	-	Not Used
12	BN/WH	419	Check Engine Indicator Control (LE5)
13	D-GN/WH	465	Fuel Pump Primary Relay Control (LE5)
14-17	-	-	Not Used
18	BN	4	Accessory Voltage (LE5)
19	PK	1039	Run/Crank Ignition 1 Voltage (LE5)
20	RD/WH	840	Battery Positive Voltage (LE5)
21-32	-	-	Not Used
33	WH/BK	1164	Accelerator Pedal Position 5-Volt Reference (1) (LE5)
34	GY	2709	Fuel Tank Pressure Sensor 5-Volt Reference (LE5)
35	TN	1274	Accelerator Pedal Position 5-Volt Reference (2) (LE5)
36	BN	1271	Accelerator Pedal Position Low Reference (1) (LE5)
37	PU	1272	Accelerator Pedal Position Low Reference (2) (LE5)
38-39	-	-	Not Used
40	BN	5069	Engine Main Relay Coil Control (LE5)
41-43	-	-	Not Used
44	PU	1589	Primary Fuel Level Sensor Signal (LE5)
45-46	-	-	Not Used
47	D-BU	1161	Accelerator Pedal Position Signal (1) (LE5)
48	D-GN	890	Fuel Tank Pressure Sensor Signal (LE5)
49	L-BU	1162	Accelerator Pedal Position Signal (2) (LE5)
50-52	-	-	Not Used
53	D-GN/WH	459	A/C Compressor Clutch Relay Control (C60 w/LE5)
54	D-BU	473	High Speed Cooling Fan Relay Control
55	WH	1310	EVAP Canister Vent Solenoid Control (LE5)
56	YE	447	Starter Relay Coil Control (LE5)