## Power Window 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.

1. | Remove the power window master switch (A).

2. | Disconnect the 20P connector (B) from the master switch.

3. | 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, make the following input tests at the connector. If a test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to 4.

4. | With the connector still disconnected, 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 5.
Cavity | Wire | Test condition | Test: Desired result | Possible cause if result is not obtained
--- | --- | --- | --- | ---
4[6] | BLK | Under all condition | Check for continuity to ground: There should be continuity. | Poor ground (G401) An open in the wire
8[2]
14 | GRN/WHT | Under all conditions | Check for voltage to ground: There should be battery voltage. | Blown No. 2 (20A) fuse in the under-dash fuse/relay box An open in the wire
5 | GRN | Ignition switch ON (II) | Check for voltage to ground: There should be battery voltage. | Blown No. 21 (10A) fuse in the under-dash fuse/relay box Blown No. 4, 13 or 14 (20A) fuse in the under-dash fuse/relay box Faulty power window relay An open in the wire
2[8] | GRN/BLK
18 | YEL/RED
11 | YEL/BLU
6[4] | RED/YEL | Connect the No. 14 and No. 6 [No. 4] terminals, and the No. 7[No. 3]and No. 4[No. 6]terminals, and turn the ignition switch ON (II). | 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
7[3] | RED/BLK
1[9] | BLU/RED | Connect the No. 2 and No. 3[No. 7] terminals, and the No. 1[No. 9] and No. 8[No. 2]terminals, and 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
3[7] | BLU/WHT
19 | BRN/WHT | Connect the No. 18 and No. 17 terminals, and the No. 19 and No. 8[No. 2] terminals, and turn the ignition switch ON (II). | Check for left rear window motor operation: It should run (the left rear window moves down). | Faulty left rear window motor Faulty left rear window switch An open in the wire
17 | BRN
12 | BLU/ORN | Connect the No. 11 and No. 10 terminals, and the No. 12 and No. 8[No. 2]terminals, and turn the ignition switch ON (II). | Check for right rear window motor operation: It should run (the right rear window moves down). | Faulty right rear window motor Faulty right rear window switch An open in the wire
10 | BRN/YEL

5. | Reconnect the 20P 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 | Wire | Test condition | Test: Desired result | Possible cause if result is not obtained
--- | --- | --- | --- | ---
16 | RED/WHT | Ignition switch ON (II) | Check for voltage to ground: There should be battery voltage. | Faulty power window master switch An open in the wire
9[1] | LT GRN | Under all conditions | Check for voltage to ground: There should be battery voltage. | An open in the wire
20 | BLU | Ignition switch ON (II), and the driver's window switch AUTO DOWN | Check for voltage between the No. 20 and No. 9[No. 1]terminals: There should be 0 V-about 5 V-0 V-about 5 V repeatedly. | Blown No. 2 (20A) fuse in the under-dash fuse/relay box Faulty power window relay Faulty power window master switch An open in the wire
13 | ORN | Ignition switch ON (II), and the driver's window switch AUTO DOWN | Check for voltage between the No. 13 and No. 9[No. 1]terminals: There should be 0 V-about 5 V-0 V-about 5 V repeatedly.
[ ]:RHD type