GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Wiper/Washer System Check performed?

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Go to Step 2

Go to Wiper/Washer System Check

2

  1. Turn ignition OFF.
  2. Disconnect the wiper/washer switch connector C201C.
  3. Measure the resistance from terminal E5 to terminal E4 of connector C201C using a DMM.
  4. Move the wiper/washer switch through all the steps of DELAY while backprobing.

Does the resistance values vary within the specified range?

39kohms-680kohms

Go to Step 4

Go to Step 3

3

Replace the wiper/washer switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .

Is the replacement complete?

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Go to Wiper/Washer System Check

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4

  1. Reconnect connector C201C.
  2. Disconnect the windshield wiper motor connector.
  3. Turn the ignition ON.
  4. Turn the wiper switch to DELAY.
  5. Measure the voltage from the wiper motor connector, terminal E, to ground with a DMM.

Is the voltage measured within the specified value?

10.5-15 V

Go to Step 5

Go to Step 6

5

Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement

Is the replacement complete?

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Go to Wiper/Washer System Check

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6

Repair the open in CKT 112.

Is the repair complete?

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Go to Wiper/Washer System Check

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