Front Passenger's Power Window Switch Input Test

Turn the ignition switch to LOCK (0), and remove the front passenger's power window switch (see FRONT PASSENGER'S POWER WINDOW SWITCH REPLACEMENT ).
Disconnect the 37P connector (A) from the front passenger's power window switch (B).

Fig 1: Identifying Front Passenger's Power Window Switch And 37P Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 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.

NOTE: With the front passenger's power window AUTO UP/AUTO DOWN function, after replacing the switch, reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ).

Cavity

Wire

Test condition

Test: Desired result

Possible cause if desired result is not obtained

3
.
4

LT BLU
.
ORN

Ignition switch ON (II), connect terminals No. 25 and No. 3 (or No. 4), and terminals No. 4 (or No. 3) and No. 37 with jumper wires.

Check the right power mirror operation: The right power mirror should move UP (or DOWN).

Faulty right power mirror
Blown No. 30 (20A) fuse in the under-dash fuse/relay box
Poor ground (G404) or an open in the ground wire
An open or high resistance in the wire

4
.
5

ORN
.
GRY

Ignition switch ON (II), connect terminals No. 25 and No. 4 (or No. 5), and terminals No. 5 (or No. 4) and No. 37 with jumper wires.

Check the right power mirror operation: The right power mirror should swing RIGHT (or LEFT).

Faulty right power mirror
Blown No. 30 (20A) fuse in the under-dash fuse/relay box
Poor ground (G404) or an open in the ground wire
An open or high resistance in the wire

1⁽¹⁾

BLU

Ignition switch ON (II), connect terminals No. 25 and No. 1 with a jumper wire

Check the right power mirror defogger operation: The right power mirror defogger should work (the inside lower edge becomes warm).

Faulty right power mirror defogger
Blown No. 30 (20A) fuse in the under-dash fuse/relay box
Poor ground (G404) or an open in the ground wire
An open or high resistance in the wire

BRN

Under all conditions, disconnect the power window master switch 37P connector

Check for continuity between the terminal No. 29 and the power window master switch 37P connector terminal No. 27: There should be continuity.

An open in the UART wire

⁽¹⁾	With mirror defogger

NOTE: When testing for defogger function, holding a cup of hot water near the mirror glass will form steam that can assist in diagnosing a broken or under-performing defogger.

Reconnect the connector to the front passenger's power window switch, turn the ignition switch to ON (II), and do the following input tests.

NOTE: With the front passenger's power window AUTO UP/AUTO DOWN function, after replacing the switch, reset the power window control unit.

If any test indicates a problem, find and correct the cause, then recheck the system.

If all the input tests prove OK, replace the front passenger's power window switch.

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
37	BLK	In all ignition switch positions	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground(G404) An open or high resistance in the ground wire
25	GRN	Under all conditions	Measure the voltage to ground: There should be battery voltage.	Blown No. 30 (20 A) fuse in the under-dash fuse/relay box Faulty under-dash fuse/relay box An open or high resistance in the wire