Master Switch Input Test
NOTE:
The power window control unit is built into the power window master switch, and it only controls the driver's window operations.
- Remove the driver's door panel (see FRONT DOOR PANEL REMOVAL/INSTALLATION ).
- Remove the power window master switch (A).
- Disconnect the 14P connector (B) from the master switch.
- Inspect the connector 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.
- With the 14P connector still disconnected from the switch connector, make these input tests at the 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.
CAVITY TEST CONDITION CHART DISCONNECTEDCavity Wire Test condition Test: Desired result Possible cause if result is not obtained 7 RED/YEL Connect the No. 11 and No. 7 terminals, and the No. 4 and No. 14 terminals. Check for driver's window motor operation: It should run (the driver's window moves down). - Faulty driver's window motor
- An open in the wire
4 RED/BLK 3 BLU/RED Connect the No. 1 and No. 2 terminals, and the No. 3 and No. 10 terminals, then turn the ignition switch ON (II). Check for front passenger's window motor operation: It should run (the front passenger's window moves down). - Faulty front passenger's window motor
- Faulty front passenger's window switch
- An open in the wire
1 BLU/WHT - Reconnect the 14P connector to the switch, and perform the following input tests.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the control unit must be faulty; replace the power window master switch.
CAVITY TEST CONDITION CHART RECONNECTEDCavity Wire Test condition Test: Desired result Possible cause if result is not obtained 10 BLK Under all conditions Check for voltage to ground: There should be less than 1 V. - Poor ground (G501)
- An open in the wire
14 2 GRN/BLK Ignition switch ON (II) Check for voltage to ground: There should be battery voltage. - Blown No. 6 (7.5 A), No. 22 (20 A), or No. 23 (20 A) fuse in the under-dash fuse/relay box
- Faulty power window relay
- Poor ground (G301)
- An open in the wire
11 GRN/WHT Under all conditions 12 YEL/GRN ignition switch ON (II) Check for voltage to ground: There should be battery voltage. - Blown No. 6 (7.5 A) fuse in the under-dash fuse/relay box
- An open in the wire
5 RED/WHT Ignition switch ON (II) Check for voltage to ground: There should be battery voltage. - Faulty power window master switch
- Short to ground in the wire
6 LT GRN Under all conditions Check for voltage to ground: There should be less than 1 V. An open in the wire 13 BLU Ignition switch ON (II), and the driver's window switch in AUTO DOWN Check for voltage between the No. 13 and No. 14 terminals: There should be 0 V---about 5 V---0 V---about 5 V repeatedly (a digital voltmeter reads about 2.5 V while the window moves). - Faulty power window master switch
- Short to ground in the wire
- Faulty driver's window motor
8 ORN Ignition switch ON (II), and the driver's window switch in AUTO DOWN Check for voltage between the No. 8 and No. 14 terminals: There should be 0 V---about 5 V---0 V---about 5 V repeatedly (a digital voltmeter reads about 2.5 V while the window moves).
NOTE:
Do the power window control unit reset procedure (see
RESETTING THE POWER WINDOW CONTROL UNIT
).