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.

2003 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Wiper/Washer System Connector End Views

Windshield Washer Fluid Level Switch Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12162195 2-Way F Metri-Pack 150.2 Series Sealed P2S (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	150	Ground
B	BLK/WHT	99	Windshield Washer Fluid Level Signal

Windshield Washer Fluid Pump Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052641 2-Way F Metri-Pack 150 Series, Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
A	RED	228	Windshield Washer Pump Control
B	BLK	150	Ground

Windshield Wiper System Module Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129126 5-Way F Metri-Pack Mixed 150, 280 Series Sealed (BLK)
Pin	Wire Color	Circuit No.	Function
A	BLK	1150	Ground
B	YEL	243	Accessory Voltage
C	PPL	92	Windshield Wiper Motor High Speed
D	DK GRN	113	Windshield Wiper Switch Signal 1
E	GRY	112	Windshield Wiper Switch Signal 2

Factory Service Tools

Use the Manual With the Right Hardware

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

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote 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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty

Get a Free Quote

No obligation. See pricing before you book.