Back View Of The Connector End View C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		34-Pin WHT
Pin	Wire Color	Function
1	YEL	Fuel Injector 1 Control
2	BLK	Fuel Injector 2 Control
3	WHT	Fuel Injector 3 Control
4	BLU	Fuel Injector 4 Control
5	BLK/BLU	Idle Air Control (IAC) Valve Control
6	WHT/BLK	Ground
7	WHT/BLK	Ground
8	RED/BLU	Ignition Trigger Signal Coil 1
9	YEL/GRN	Ignition Trigger Signal Coil 2
10	GRY	Ignition Trigger Signal Coil 3
11	WHT	Ignition Trigger Signal Coil 4
12	BLU/BLK	EVAP Canister Purge Solenoid Valve Control
13	YEL	AC Pressure Switch
14	BLK/YEL	Camshaft Position (CMP) Actuator Solenoid Valve High Control
15	YEL	Camshaft Position (CMP) Actuator Solenoid Valve Low Control
16	PNK	Line Pressure Control (PC) Solenoid Control Low*
17	RED/WHT	Line Pressure Control (PC) Solenoid Controll High*
18	YEL	5-Volt Reference Circuit
19	WHT	Engine Coolant Temperature (ECT) Sensor Input
20	YEL/BLK	Intake Air Temperature (IAT) Sensor Input
21	LT GRN	Throttle Position (TP) Sensor Input
22	-	Not Used
23	BLU/YEL	Ignition Fail Safe Input
24-25	-	Not Used
26	BLK	Camshaft Position (CMP) Sensor Input
27	BLK	Crankshaft Position (CKP) Sensor Input
28	BRN	Sensor Ground
29	-	Not Used
30	WHT/BLU	Transmission Fluid Temperature Sensor Input, with AWD Only*
31-33	-	Not Used
34	WHT	CMP Sensor and CKP Sensor Ground
*Automatic Transmission Only