Power Window Master Switch Input Test
- Remove the door panel (see DOOR PANEL REMOVAL/INSTALLATION ).
- Remove the power window master switch (A) from the door panel.
- Disconnect the 14P connector (B) and the 10P connector (C) from the power window master switch.
- Inspect the connectors and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 5.
- Reconnect the power window master switch, and perform the following input tests at the 14P connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 6.PROBLEM SYMPTOM TABLE (1 Of 2)
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 4 GRN/BLK Ignition switch ON (ID Check for voltage to ground:
There should be battery voltage.- Blown No. 8 (20 A) fuse in the under-dash fuse/relay box
- An open in the wire
1 BLK Under all conditions Check for voltage to ground:
There should be less than 1 V.- Poor ground (G501)
- An open in the wire
11 GRN/WHT Under all conditions Check for voltage to ground:
There should be battery voltage.- Blown No. 17 (20 A) fuse in the under-dash fuse/relay box
- An open in the wire
8 BLU While operating the driver's window switch Check for voltage between the No. 8 and No. 2 terminals:
There should be 0-5 V or more repeatedly.- Faulty driver's window motor
- Faulty power window master switch
- An open in the wire
2 BLK Under all conditions Check for voltage to ground:
There should be less than 1 V.- Faulty power window master switch
- An open in the wire
14 BLU/ORN Ignition switch ON (II), and convertible top switch ON. Parking brake lever UP Check for voltage between the No. Hand No. 1 terminals:
There should be 0-8 V or more repeatedly.- Faulty convertible top control unit
- Faulty power window master switch
- An open in the wire
- Disconnect the 14P connector and the 10P connector from the power window master switch, make these input tests at the 14P connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 7.PROBLEM SYMPTOM TABLE (2 Of 2)
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained 13 BLU/RED Connect the No. 4 terminal to the No. 13 terminal and connect the No. 4 terminal to the No. 12 terminal, then turn the ignition switch ON (II) Check for passenger's window motor:
It's should run (the window moves up).- Blown No. 18 (20 A) fuse in the under-dash fuse/relay box
- Faulty passenger's window motor
- Faulty passenger's window switch
- Faulty convertible top control unit
- Poor ground (G501)
- An open in the wire
12 RED/WHT 6 BLU/WHT Connect the No. 4 terminal to the No. 6 terminal Check for passenger's window motor:
It should run (the window moves down).5 RED/BLK Connect the No. 5 (2) terminal to the No. 11 terminal and connect the No. 3 terminal to the No. 1 terminal Check for driver's window motor:
It should run (the window moves up).- Faulty driver's window motor
- An open in the wire
3 RED/YEL Connect the No. 3 terminal to the No. 11 terminal and connect the No. 5 terminal to the No. 1 terminal Check for driver's window motor:
It should run (the window moves down).
- If all the input tests prove OK, the power window master switch must be faulty; replace it.