WARNING: This page is about a different car, the 2004 Buick Regal, 2004 Buick Century, 2003 Buick Regal, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

A/T Shift Lock Control Solenoid Connector End Views (Century)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052832 2-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	DK GRN/ WHT	1135	A/T Shift Lock Control Solenoid Supply Voltage
B	BLK	150	Ground

A/T Shift Lock Control Switch Connector End Views (Regal)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064762 6-Way F Metri-Pack 150 Series (GRY)
Pin	Wire Color	Circuit No.	Function
A	ORN/BLK	434	Neutral Safety Switch Signal
B	PNK	1439	Ignition 1 Voltage
C	LT BLU	1134	Ignition Lock Cylinder Control Actuator Signal
D	-	-	Not Used
E	DK GRN/WHT	1135	A/T Shift Lock Control Solenoid Supply Voltage
F	PPL	1600	Ignition 0 Voltage

Brake to Shift Relay Connector End Views

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129715 6-Way F Metri-Pack 280 Series Flexlock (MD GRY)
Pin	Wire Color	Circuit No.	Function
A1	PNK	1439	Ignition 1 Voltage
A1	PNK	1439	Ignition 1 Voltage (Regal)
A2	ORN/BLK	434	Neutral Safety Switch Signal
B1-B2	-	-	Not Used
C1	BLK	1550	Ground
C2	TAN/WHT	816	A/T Shift Lock Solenoid Supply Voltage

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Automatic Transmission Shift Lock Control Connector End Views

Use the Manual With the Right Hardware

When to See a Mechanic