Rear Wheel Steering Control Module Connector End Views

Rear Wheel Steering Control Module - C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12191065 16-Way F Micro-Pack 100 Series (BLU)
Pin	Wire Color	Circuit No.	Function
1	YEL	2556	Rear Wheel Steering Motor Actuator Hall A Signal
2	BRN	2557	Rear Wheel Steering Motor Actuator Hall B Signal
3	BLK	2559	Rear Wheel Steering Motor Hall Sensor Ground
4	DK BLU	2564	Rear Wheel Position sensor Position 2 signal
5	RED	1444	Rear Wheel Steering Motor Hall Sensor 12V Reference
6	GRY	2566	Rear Wheel Steering Motor Shorting Relay Ground
7-8	-	-	Not Used
9	LT BLU	2558	Rear Wheel Steering Motor Actuator Hall C Signal
10	ORN	2565	Rear Wheel Steering Motor Shorting Relay Voltage
11	TAN	2560	Rear position Sensor Ground
12	DK GRN	2563	Rear Wheel Position Sensor Position 1 Signal
13	WHT	605	5 Volt Reference
14-16	-	-	Not Used

Rear Wheel Steering Control Module - C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15355393 3-Way F Mini-Fit Jr (BLK)
Pin	Wire Color	Circuit No.	Function
A	RED	2545	Rear Wheel Steering Motor Actuator Phase A Control
B	DK BLU	2546	Rear Wheel Steering Motor Actuator Phase B Control
C	ORN	2547	Rear Wheel Steering Motor Actuator Phase C Control

Rear Wheel Steering Control Module - C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15355404 2-Way F Maxi 800 Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	1750	Ground
B	RED	1042	Battery Positive Voltage

Rear Wheel Steering Module - C4

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129225 24-Way F Micro-Pack 100 Series, Sealed (GRY)
Pin	Wire Color	Circuit No.	Function
1	LT GRN	1763	Steering Wheel Position Sensor Phase A Signal
2	LT BLU	1764	Steering Wheel Position Sensor Phase B Signal
3	LT BLU	2088	Steering Wheel Position Sensor Low Reference
4	DK BLU	2544	Rear Wheel Steering Mode Select Switch 5V Reference
5	-	-	Not Used
6	DK GRN/WHT	817	Vehicle Speed Signal
7	BRN	541	Ignition 3 Voltage
8	DK BLU	716	Yaw Rate Sensor Signal
9	DK GRN/WHT	2891	Rear Wheel Steering Mode Select Switch Signal
10-12	-	-	Not Used
13	WHT	1765	Steering Wheel Position Marker Pulse Signal
14	-	-	Not Used
15	DK GRN	2087	Steering Wheel Position Sensor 5V Reference
16	LT BLU	2568	2 Wheel Steer Mode Indicator Supply Voltage
17	TAN	2569	4 Wheel Steer Mode Indicator Supply Voltage
18	-	-	Not Used
19	ORN	2538	4 Wheel Steer Trailer Mode Indicator Supply Voltage
20	LT BLU	715	Lateral Accelerometer Signal
21-22	-	-	Not Used
23	ORN	2640	Battery Positive Voltage
24	GRY	2567	Rear Wheel Steering Module Class 2 Serial Data