Gauge Control Module (2013 2014 2015)

NOTE:

Before testing, do the gauge control module self-diagnostic function , and make sure the B-CAN communication lines are OK.
Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box is OK.
Before testing, make sure the No. B5 (7.5 A) fuse in the under-dash fuse/relay box is OK.

1. Press the engine start/stop button to select the OFF mode.

2. Disconnect the gauge control module 32P connector

Courtesy of HONDA, U.S.A., 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 are 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 the terminals are OK, go to step 5.

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired resultis not obtained
19	RED	Combination light switch ON	Connect to ground with a jumper wire:The dashlights should come on full bright.	Faulty LEDs An open or high resistance in the wire
20	RED	Combination light switch ON	Connect to ground with a jumper wire:The dashlights should come on full bright.	Faulty bulbs An open or high resistance in the wire
18	BLU	Power mode ON, turn signal switch to LEFT	Measure the voltage to ground:There should be battery voltage when the lights are flashing.	Faulty MICU Faulty combination light switch An open or high resistance in the wire
17	GRN	Power mode ON, turn signal switch to RIGHT	Measure the voltage to ground:There should be battery voltage when the lights are flashing.	Faulty MICU Faulty combination light switch An open or high resistance in the wire

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 gauge control module .

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired resultis not obtained
1	WHT	Under all conditions	Measure the voltage to ground:There should be battery voltage.	Blown No. A29 (10 A) fuse in the under-hood fuse/relay box Faulty under-dash fuse/relay box An open or high resistance in the wire
2	BRN	Power mode ON	Measure the voltage to ground:There should be battery voltage.	Blown No. B5 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire
16	GRY	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
32	BRN	In all power modes	Measure the voltage to ground:There should be less than 0.2 V.	Poor ground (G503) An open or high resistance in the ground wire
13	GRN	Power mode ON, brake fluid is at full level in the reservoir	Measure the voltage to ground:There should be about 5 V.	Faulty brake fluid level switch A short to ground in the wire
13	GRN	Power mode ON, brake fluid is at lower level in the reservoir	Measure the voltage to ground:There should be less than 0.2 V.	Faulty brake fluid level switch Poor ground (G401) or an open in the ground wire An open or high resistance in the wire
27	LT GRN	Power mode ON, parking brake lever pulled	Measure the voltage to ground:There should be less than 0.2 V.	Faulty parking brake switch Faulty parking brake switch ground An open or high resistance in the wire
27	LT GRN	Power mode ON, parking brake lever released	Measure the voltage to ground:There should be about 5 V.	Faulty parking brake switch A short to ground in the wire
12 *	BLU	Power mode ON, washer fluid is half or more in the washer reservoir	Measure the voltage to ground:There should be about 5 V.	Faulty washer fluid level switch A short to ground in the wire
12 *	BLU	Power mode ON, washer fluid is empty in the washer reservoir	Measure the voltage to ground:There should be less than 0.2 V.	Faulty washer fluid level switch Poor ground (G401) or an open in the ground wire An open or high resistance in the wire

*: Canada models