Step
Action
Yes
No
Schematic Reference: Wiper/Washer Schematics
Connector End View Reference: Wiper/Washer Connector End Views
1
Did you review the Wiper/Washer System Description and Operation and perform the necessary inspections?
Go to Step 2
Go to Symptoms - Wiper/Washer Systems
2
Do the windshield washers operate normally?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3
3
Does the test lamp illuminate?
Go to Step 8
Go to Step 4
4
Test the windshield washer pump ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 10
Go to Step 5
5
Test the windshield washer pump control circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Go to Step 6
6
Inspect for poor connections at the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Go to Step 7
7
Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column.
Is the repair complete?
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8
Inspect for poor connections at the windshield washer pump. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Go to Step 9
9
Replace the windshield washer pump. Refer to Washer Pump/Reservoir Replacement .
10
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Auto Technician
GM Mark of Excellence/ Service Guild Participant with 13 years experience, ASE Master Certified