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Component Testing

Driver Window Switch

  1. Ignition OFF, disconnect theX1 and X2 harness connectors at the driver window switch.
  2. Test for less than 2 Ω between the lockout control terminal F and the B+ terminal E with the lockout switch in the ENABLE position.
    • If greater than the specified value, replace the driver window switch.
  3. Test for infinite resistance between the lockout control terminal F and the B+ terminal E with the lockout switch in the DISABLE position.
    • If less than the specified value, replace the driver window switch.
  4. With the switch in the INACTIVE position, test for infinite resistance between the appropriate signal and control terminals and the ignition terminal E listed below:
    • Control terminal A
    • Signal terminal B
    • Signal terminal C
    • Signal terminal D
    • Control terminal E
    • Signal terminal G
    • Signal terminal H
    • If less than the specified value, replace the driver window switch.
  5. With the switch in the UP position, test for less than 2 Ω between the control terminals and the ignition terminal E listed below:
    • Signal terminal D
    • Signal terminal G
    • Signal terminal B
    • Control terminal E
    • If greater than the specified range, replace the driver window switch.
  6. With the switch in the DOWN position, test for less than 2 Ω between the control terminals and the ignition terminal E listed below:
    • Signal terminal C
    • Signal terminal H
    • Signal terminal C
    • Control terminal A
    • If greater than the specified range, replace the driver window switch.

Front Passenger Window Switch

  1. Ignition OFF, disconnect the harness connector at the passenger window switch.
  2. Test for infinite resistance between the control terminals G and F and the ignition terminal A with the switch in the INACTIVE position.
    • If less than the specified value, replace the passenger window switch.
  3. Test for less than 2 Ω between the control terminal G and the B+ terminal A with the switch in the UP position.
    • If greater than the specified range, replace the passenger window switch.
  4. Test for less than 2 Ω between the control terminal F and the ignition terminal A with the switch in the DOWN position.
    • If greater than the specified range, replace the passenger window switch.

Rear Window Switch

  1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
  2. Test for infinite resistance between the control terminals D and A and the control terminal E with the switch in the INACTIVE position.
    • If less than the specified value, replace the rear window switch.
  3. Test for less than 2 Ω between the control terminal D and the control terminal E with the switch in the UP position.
    • If greater than the specified range, replace the rear window switch.
  4. Test for less than 2 Ω between the control terminal A and the control terminal E with the switch in the DOWN position.
    • If greater than the specified range, replace the rear window switch.

Rear Window Motor

  1. Ignition OFF, disconnect the harness connector at the appropriate M74 window motor.
  2. Install a 25A fused jumper wire between one of the control terminals and 12V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the M74 window motor should perform the UP and DOWN functions.
    • If it does not perform as specified, replace the M74 window motor.
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