Power Mirrors (Power Window Master Switch) Input Test (2015 2017)

NOTE:

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 - Refer to: BODY ELECTRICAL TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A - INITIAL COMMUNICATION AND DTC CHECKS .
Before testing, make sure the No. B1 (7.5 A), and No. B32 (20 A) fuses in the under-dash fuse/relay box is OK.

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

Courtesy of HONDA, U.S.A., INC.

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, 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
7	WHT	Turn the vehicle to the ON mode, power mirror switch in RIGHT mirror position	Measure the voltage to ground: There should be battery voltage when the power mirror switch LEFT or DOWN is pressed.	Blown No. B1 (7.5 A) fuse in the under-dash fuse/relay box Faulty power mirror switch An open or high resistance in the wire
6	RED	Turn the vehicle to the ON mode, power mirror switch in RIGHT mirror position	Measure the voltage to ground: There should be battery voltage when the power mirror switch RIGHT or DOWN is pressed.	Blown No. B1 (7.5 A) fuse in the under-dash fuse/relay box Faulty power mirror switch An open or high resistance in the wire
5	GRY	Turn the vehicle to the ON mode, power mirror switch in RIGHT mirror position	Measure the voltage to ground: There should be battery voltage when the power mirror switch UP or LEFT is pressed.	Blown No. B1 (7.5 A) fuse in the under-dash fuse/relay box Faulty power mirror switch An open or high resistance in the wire

*: With moonroof

Cavity	Wire	Test Condition	Test: Desired Result	Possible Cause If Desired Result Is Not Obtained
15	TAN	Turn the vehicle to the ON mode, connect terminals No. 25 and No. 15 with a jumper wire	Check the left power mirror defogger operation: The left power mirror defogger should work (the inside lower edge becomes warm).	Faulty left power mirror defogger Poor ground (G501) or an open in the ground wire An open or high resistance in the wire
37	PNK	Turn the vehicle to the ON mode, connect terminals No. 25 and No. 37 with a jumper wire	Check the power mirror switch light operation: The power mirror switch light should come on.	Faulty LED Faulty power mirror switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire
36	LT BLU	Disconnect these connectors: Front passenger's power window switch 37P connector Moonroof control unit/motor 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 control unit/motor 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. B32 (20 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire
25	LT GRN	Turn the vehicle to the ON mode	Measure the voltage to ground: There should be battery voltage.	Blown No. B1 (7.5 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 (G501) An open or high resistance in the ground wire
31	BLK	In all power modes	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