Service Procedure

WINDSHIELD WASHER PUMP:

ITEMS COVERED BY SPECIAL POLICY, STEPS 1 THROUGH 4 (INCLUDES 10-15)

CHECK WASHER PUMP OPERATION BEFORE REMOVING FROM VEHICLE

1. Remove cover harness connector (see Illustration).
2. Apply 12V (+) to #6 terminal.
3. Pump should run and fluid should spray on windshield.
4. If washer pump does not run, replacement is required; go to step 11.

ITEMS NOT COVERED BY SPECIAL POLICY, STEPS 5 THROUGH 9

5. If washer pump runs but fluid does not spray on windshield, follow steps below.
6. Remove washer bottle cap and examine filter screen at bottom of hose. Clean if necessary, add washer fluid as required. If gummy residue is found on filter screen, empty washer bottle, clean filter screen and bottle and refill with approved GM washer fluid.
7. Check for disconnected, leaking or pinched hoses. Correct as necessary.
8. Inspect fluidic nozzles and check valve (if so equipped) for dirt, etc.,
9. Reconnect all hoses and repeat steps 2 - 3.


10. If no fluid sprays, replace washer pump.

11. Disconnect washer pump retaining clip (see Illustration).

12. Remove washer pump with side-to side movement while pulling outward on pump.

13. Install new washer pump. Align washer pump nozzle with notch in cover and then make sure new washer pump is pushed in all the way into the washer cover female terminals.

14. Connect washer pump retaining clip and repeat Steps 2 and 3.

15. Connect cover harness connector.