GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: All power windows inoperative from all door window switches.

1

Was the Power Door System Diagnostic System Check performed?

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Go to Step 2

Go to Diagnostic System Check - Power Door Systems

2

  1. Remove the PWR WDO circuit breaker.
  2. Using a DMM, measure the resistance between circuit breaker terminals.

Is the resistance within the specified range?

0-5 ohms

Go to Step 4

Go to Step 3

3

Replace the PWR WDO circuit breaker.

Is the replacement complete?

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Go to Diagnostic System Check - Power Door Systems

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4

Using a DMM, measure the voltage between both rear junction block PWR WDO circuit breaker #57 terminals and ground.

Is the voltage within the specified range for either measurement?

10-15 V

Go to Step 5

Go to Power Distribution Schematics .

5

Repair CKT 1040 for an open or high resistance at rear junction block.

Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Diagnostic System Check - Power Door Systems

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