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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 524 (BODY REAR END)COMPONENT LOCATORBODY REAR END CONNECTOR END VIEWS

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Body Rear End Connector End Views

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Body Rear End Connector End Views

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

Endgate Latch Connector End View - Left - C1 (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162190 4-Way F Metri-Pack 150.2 Series Sealed P2S (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	450	Ground
B	YEL	656	Endgate Open Switch Signal
C	PNK/BLK	1303	Endgate Ajar Switch Signal
D	-	-	Not Used

Endgate Latch Connector End View - Right - C1 (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162190 4-Way F Metri-Pack 150.2 Series Sealed P2S (BLK)
Pin	Wire Color	Circuit No.	Function
A	-	-	Not Used
B	PNK/BLK	1303	Endgate Ajar Switch Signal
C	YEL	656	Endgate Open Switch Signal
D	BLK	450	Ground

Endgate Latch Connector End View - Left - C2 (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15300027 2-Way F Metri-Pack 280 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	ORN	9294	Liftgate Motor Unlock
B	RED	9295	Liftgate Motor Lock

Endgate Latch Connector End View - Right - C2 (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15300027 2-Way F Metri-Pack 280 (BLK)
Pin	Wire Color	Circuit No.	Function
A	ORN	9294	Liftgate Motor Unlock
B	RED	9295	Liftgate Motor Lock

I/P Switch Assembly C1 Connector End View (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162455 8-Way F 280 Series (NAT)
Pin	Wire Color	Circuit No.	Function
A	GRY	8	Instrument Panel Lamp Supply Voltage
B	BLK	150	Ground
C	WHT/BLK	1221	Liftgate Release Switch Signal
D	BRN/WHT	1571	Traction Control Switch Signal
E-H	-	-	Not Used

I/P Switch Assembly Connector End View C1 (Buick)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12041301 8-Way F Metri-Pack 280 (BLK)
Pin	Wire Color	Circuit No.	Function
A	GRY	8	Instrument Panel Lamp Supply Voltage
B	BLK	1450	Ground
C-D	-	-	Not Used
E	WHT/BLK	1221	Liftgate Release Switch Signal
F	GRY	391	Rear Window Wiper Switch Signal
G	YEL	343	Accessory Voltage
H	DK GRN	392	Rear Window Washer Pump Control

I/P Switch Assembly C2 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12047976 8-Way F Metri-Pack 280 Series (BLU)
Pin	Wire Color	Circuit No.	Function
A	GRY	8	Instrument Panel Lamp Supply Voltage 1
B	BLK	150	Ground
C	LT GRN	911	Rear Defog Relay Coil Supply Voltage
D	LT BLU	1462	Driver Heated Seat Switch Signal
E	LT BLU/BLK	1505	Front Passenger Heated Seat Switch Signal
F-H	-	-	Not Used

I/P Switch Assembly C3 Connector End View (Buick)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162455 8-Way F 280 Series (NAT)
Pin	Wire Color	Circuit No.	Function
A	GRY	8	Instrument Panel Lamp Supply Voltage
B	BLK	150	Ground
C-F	-	-	Not Used
G	LT GRN	9380	Rear Parking Assist Disable Switch Signal
H	BRN	241	Ignition 3 Voltage

I/P Switch Assembly C4 - JM4 Connector End View (Buick)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162455 8-Way F 280 Series (NAT)
Pin	Wire Color	Circuit No.	Function
A	GRY	8	Instrument Panel Lamp Supply Voltage
B	BLK	150	Ground
C	BRN/WHT	1571	Traction Control Switch Signal (NW9)
D-H	-	-	Not Used

Liftgate Latch - C1 Connector End View (Buick)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15354716 4-Way F MGT 150 Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
A	-	-	Not Used
B	PNK/BLK	1303	Endgate Ajar Switch Signal
C	YEL	656	Endgate Open Switch Signal
D	BLK	1150	Ground

Liftgate Latch - C2 Connector End View (Buick)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15300027 2-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	WHT	1304	Liftgate Motor Lock Control
B	PPL	1305	Liftgate Lock Motor Unlock Control

Lift Window Latch Connector End View - Left (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12047781 3-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	450	Ground
B	PPL	2279	Lift Glass Ajar Switch Signal
C	-	-	Not Used

Lift Window Lock Actuator Connector End View - Left (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052832 2-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	LT BLU	383	Lift Glass Release Control
B	BLK	450	Ground

Lift Window Latch Connector End View - Right (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12047781 3-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	450	Ground
B	RED/BLK	744	Lift Glass Ajar Switch Signal
C	-	-	Not Used

Lift Window Lock Actuator Connector End View - Right (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052832 2-Way F Metri-Pack 150 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A	LT BLU	383	Lift Glass Release Control
B	BLK	450	Ground

Lock Cylinder Switch Connector End View - Endgate (Pontiac)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15354699 2-Way M Metri-Pack 150 Series (WHT)
Pin	Wire Color	Circuit No.	Function
A	PPL	9124	Liftgate Release Switch Signal
B	BLK	450	Ground

RENDER: 1.0x

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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.