Turn Signal/Hazard Warning Lights (MICU) (2013 2014 2015)

NOTE:

Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors.
Before testing, make sure the No. A14 (10 A) and No. A29 (10 A) fuses in the under-hood fuse/relay box are 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.

.NOTE: All connector views are shown from the wire side of the female terminals.

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

Inspect the connectors 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 connectors 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
K11	BLU	Connect terminals K11 and D11 with a jumper wire	Check the turn signal lights operation:The left turn signal indicator should come on.	Faulty gauge control module An open or high resistance in the wire
K10	GRN	Connect terminals K10 and D11 with a jumper wire	Check the turn signal lights operation:The right turn signal indicator should come on.	Faulty gauge control module An open or high resistance in the wire
C11	BLU	Connect terminals C11 and D11 with a jumper wire	Check the turn signal lights operation:The left front turn signal light should come on.	Blown bulb Poor ground (G301) or an open in the ground wire An open or high resistance in the wire
C7	BRN	Connect terminals C7 and D11 with a jumper wire	Check the turn signal lights operation:The right front turn signal light should come on.	Blown bulb Poor ground (G201) or an open in the ground wire An open or high resistance in the wire
B4	BLU	Connect terminals B4 and D11 with a jumper wire	Check the turn signal lights operation:The left rear turn signal light should come on.	Blown bulb Poor ground (G701) or an open in the ground wire An open or high resistance in the wire
B12	BRN	Connect terminals B12 and D11 with a jumper wire	Check the turn signal lights operation:The right rear turn signal light should come on.	Blown bulb Poor ground (G701) or an open in the ground wire An open or high resistance in the wire

Reconnect the connectors to the under-dash fuse/relay box, 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, the MICU must be faulty; replace the under-dash fuse/relay box .

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired resultis not obtained
D28	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 An open or high resistance in the wire
D11	BRN	Under all conditions	Measure the voltage to ground:There should be battery voltage.	Blown No. A14 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire
W6	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

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired resultis not obtained
B32	BLK	In all power modes	Measure the voltage to ground:There should be less than 0.2 V.	Poor ground (G602) An open or high resistance in the ground wire
R1	WHT	Under all conditions	Measure the voltage to ground:There should be battery voltage.	Blown No. A14 (10 A) fuse in the under-hood fuse box Faulty under-dash fuse/relay box An open or high resistance in the ground wire
R3	GRN	Hazard warning switch pressed	Measure the voltage to ground:There should be battery voltage.	Faulty hazard warning switch An open or high resistance in the ground wire
T14.T5	LT GRN.BLK	Turn signal switch in left position	Measure the voltage between terminals T14 and T5:There should be less than 0.2 V.	Faulty turn signal switch An open or high resistance in the wire
T14.T5	LT GRN.BLK	Turn signal switch in right or neutral position	Measure the voltage between terminals T14 and T5:There should be about 5 V.	Faulty turn signal switch A short to ground in the wire
T13.T5	BRN.BLK	Turn signal switch in right position	Measure the voltage between terminals T13 and T5:There should be less than 0.2 V.	Faulty turn signal switch An open or high resistance in the ground wire
T13.T5	BRN.BLK	Turn signal switch in left or neutral position	Measure the voltage between terminals T13 and T5:There should be about 5 V.	Faulty turn signal switch A short to ground in the wire