Circuit Diagnosis

Window Relay
The window, RR Defog, fog lamp and A/C relays are interchangeable with each other.
Substitute another relay to see if the problem is fixed.
Repair/replace as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

4 Door Window Switches
Check the connections and terminals for tightness or damage.
See wiring schematic for pin connections to switch.
Operate each switch in UP and DOWN positions and measure for voltage/ground at each motor pair of pins.
The express down circuitry is in the driver's window switch only. The driver's window should go all the way down when the switch is pressed momentarily to the down position. The window should stop if the driver's window switch is pulled in the up position during an express down operation.
Check for OPENS/SHORTS.
Repair/replace as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Coupe Window Switches
See wiring schematic for pin connections to switch.
Check the connections and terminals for tightness or damage.
Operate each switch in UP and DOWN positions and measure for voltage/ground at each motor pair of pins.
The express down circuitry is in the driver's window switch only. The driver's window should go all the way down when the switch pressed momentarily to the down position. The window should stop if the driver's window switch is pulled in the up position during an express down operation.
Check for OPENS/SHORTS.
Repair/replace as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Window Motors
Each window motor has an internal self resetting circuit breaker that will open the circuit if the switch is held in the up or down position too long after the window has reached the up or down position.
Check the connections and terminals for tightness or damage.
Check for OPENS/SHORTS.
Repair/replace as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.

Rear Door Window Switches
Operate each switch in up and down positions and measure for voltage/ground at each motor pair of pins.
Check the connections and terminals for tightness or damage.
Rear switches should not operate the windows when the rear lockout switch in activated.
Check for OPENS/SHORTS.
Repair/replace as needed.
If this component is good go to the next item indicated on the Complaint-Condition Chart.