Power Steering System Connectors

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Brake Pedal Position Sensor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15332132 3-Way F GT 150 Series (BLK)
Pin	Wire Color	Circuit Number	Function
A	RED	5688	Brake Pedal Position Sensor 5V Supply
B	DK BLU	5066	Brake Pedal Position Sensor Signal
C	WHT	5689	Brake Pedal Position Sensor 5V Return

Electro Hydraulic Power Steering (EHPS) C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15355404 2-Way F Maxi 800 SLD (BLK)
Pin	Wire Color	Circuit Number	Function
A	RED	5875	EHPS 42V Battery
B	BLK	5691	EHPS 42V Ground

Electro Hydraulic Power Steering (EHPS) C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129225 24-Way F Micro-Pack 100 Series, Sealed (BLK)
Pin	Wire Color	Circuit Number	Function
1	-	-	Not Used
2	BLK/WHT	1851	Ground
3-4	-	-	Not Used
5	ORN	5688	Brake Pedal Position Sensor 5V Supply
6	YEL	5066	Brake Pedal Position Sensor Signal
7	GRY/BLK	5689	Brake Pedal Position Sensor 5V Return
8	TAN	2501	High Speed GMLAN Serial Data Bus-
9	TAN/WHT	2500	High Speed GMLAN Serial Data Bus+
10	BLK/WHT	451	Ground
11	PNK	43	Accessory Voltage
12	-	-	Not Used
13	LT GRN	1763	Steering Wheel Position Signal A
14	-	-	Not Used
15	LT BLU	1764	Steering Wheel Position Signal B
16-17	-	-	Not Used
18	YEL/BLK	5696	EHPS Interlock Signal
19	YEL/BLK	5696	EHPS Interlock Signal
20	TAN	2501	High Speed GMLAN Serial Data Bus-
21	TAN/WHT	2500	High Speed GMLAN Serial Data Bus+
22	PNK	1839	Ignition 1 Voltage
23-24	-	-	Not Used

Rear Wheel Steering Switch (NYS)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12047531 10-Way F Micro-Pack 100 (BLK)
Pin	Wire Color	Circuit Number	Function
1	-	-	Not Used
2	ORN	2538	Brake Pedal Position Sensor Signal
3	LT BLU	2568	Brake Pedal Position Sensor 5V Return
4	TAN	2569	4 Wheel Steer Mode Indicator Control
5	BRN/WHT	230	Instrument Panel Lamps Dimming Control
6	BLK	1050	Ground
7	-	-	Not Used
8	PPL/WHT	1382	LED Dimming Signal/LED Dimming Supply
9	DK GRN/ WHT	2891	Rear Wheel Steering Mode Select Swtich Signal
10	DK BLU	2544	Rear Wheel Steer Mode Select Switch 5V Reference

Steering Wheel Speed/Position Sensor

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052444 8-Way F Micro-Pack 100 (BLK)
Pin	Wire Color	Circuit Number	Function
1	GRY	1056	Steering Wheel Position Sensor 5-Volt Reference
2	BLK	1835	Security System Sensor Low Reference
3	LT GRN	1763	Steering Wheel Position Sensor Phase A Signal
4	LT BLU	1764	Steering Wheel Position Sensor Phase B Signal
5	WHT	1765	Steering Wheel Position Marker Pulse Signal
6	LT BLU	1059	Steering Wheel Position Sensor Signal
7	BRN	41	Ignition 3 Voltage
8	BLK/WHT	1851	Ground