Power Window Master Switch Input Test
NOTE:
Before testing, make sure the No. A18 (10 A) fuse in the under-hood fuse/relay box is OK.
Before testing, make sure the No. B9 (10 A), No. B14 (20 A), No. B27 (20 A), and No. B28 (20 A) fuses in the under-dash fuse/relay box are OK.
Before testing, check for DTCs. If any DTCs are indicated, troubleshoot those DTCs first.
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1.
Turn the vehicle to the OFF (LOCK) mode.

2.
Disconnect the power window master switch 37P connector.
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 are OK, go to step 4.

4.
With the connector still disconnected, do 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, go to step 5.

Cavity
Wire
Test condition
Test: Desired result
Possible cause if desired result
is not obtained
2
•
1
YEL
•
GRN
Connect terminals No. 2 and No. 4, and terminals No. 1 and No. 3 with jumper wires.
Check driver's power window motor operation:
The driver's power window should close.
Faulty driver's power window motor
Poor ground (G502)
An open or high resistance in the wire
Connect terminals No. 1 and No. 4, and terminals No. 2 and No. 3 with jumper wires.
Check driver's power window motor operation:
The driver's power window should open.
13
•
14
BLU
•
YEL
Connect terminals No. 13 and No. 4 with a jumper wire.
Check left rear power window motor operation:
The left rear power window should close.
Faulty left rear power window switch
Faulty left rear power window motor
Poor ground (G601)
An open or high resistance in the wire
Connect terminals No. 14 and No. 4 with a jumper wire.
Check left rear power window motor operation:
The left rear power window should open.
26
•
25
GRN
•
PUR
Connect terminals No. 26 and No. 4 with a jumper wire.
Check right rear power window motor operation:
The right rear power window should close.
Faulty right rear power window switch
Faulty right rear power window motor
Poor ground (G602)
An open or high resistance in the wire
Connect terminals No. 25 and No. 4 with a jumper wire.
Check right rear power window motor operation:
The right rear power window should open.
36
WHT
Disconnect these connectors:
Front passenger's power window switch 37P connector
Moonroof motor-control unit 14P connector*
Check for continuity between terminal No. 36 and front passenger's power window switch 37P connector terminal No. 34:
There should be continuity.
An open in the LIN(P/W) wire
Check for continuity between terminal No. 36 and moonroof motor-control unit 14P connector terminal No. 12:
There should be continuity.
An open in the LIN(P/W) wire
Check for continuity to ground:
There should be no continuity.
A short to ground in the LIN(P/W) wire
*: With moonroof

5.
Reconnect the connector, and do 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, replace the power window master switch.

NOTE: After replacing the power window master switch, do the resetting the power window control unit.

Cavity
Wire
Test condition
Test: Desired result
Possible cause if desired result
is not obtained
4
WHT
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
Blown No. B28 (20 A) fuse in the under-dash fuse/relay box
An open or high resistance in the wire
37
RED
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
Blown No. A18 (10 A) fuse in the under-hood fuse/relay box
An open or high resistance in the wire
18
BRN
Vehicle ON mode
Measure the voltage to ground:
There should be battery voltage.
Blown No. B9 (10 A) fuse in the under-dash fuse/relay box
An open or high resistance in the wire
3
BLK
In all power modes
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G502)
An open or high resistance in the ground wire
29
BLK
In all power modes, disconnect the driver's power window motor 6P connector
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G501)
An open or high resistance in the ground wire
34
LT BLU
Vehicle ON mode
Measure the voltage to ground:
There should be battery voltage.
Faulty driver's power window motor
An open or high resistance in the wire
33
LT GRN
Vehicle ON mode, and driver's power window moving up or down
Measure the voltage between terminals No. 33 and No. 29:
An analog meter should alternate between 0 V and 5 V
(a digital voltmeter should read about 2.5 V while the window moves).
Faulty driver's power window motor
An open or high resistance in the wire
A short to ground in the wire
35
PNK
Vehicle ON mode, and driver's power window moving up or down
Measure the voltage between terminals No. 35 and No. 29:
An analog meter should alternate between 0 V and 5 V
(a digital voltmeter should read about 2.5 V while the window moves).
Faulty driver's power window motor
An open or high resistance in the wire
A short to ground in the wire