Automatic Lighting/Rain Sensor (2016 2017 2018 2019 2020 2021 2022)

NOTE:

If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box is OK.

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

2. Disconnect the automatic lighting/rain sensor 5P connector

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GHH469194

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.

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 automatic lighting/rain sensor .

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired resultis not obtained
5	GRN	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
2	BLK	In all power modes	Measure the voltage to ground:There should be less than 0.2 V.	Poor ground (G504) An open or high resistance in the ground wire
1	PNK	Under all conditions	Measure the voltage to ground:There should be about 5 V.	An open or high resistance in the wire