Safety Warning

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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1100 (BODY REAR END)COMPONENT LOCATORBODY REAR END CONNECTOR END VIEWS

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Body Rear End Connector End Views

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION 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

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.