Headlight Leveling Motor Input Test

NOTE: Before testing, check for DTCs. If any DTCs are indicated, troubleshoot those DTCs first, and combination light switch circuit 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 are 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, replace the headlight leveling motor .
Do the headlight leveling control unit input test .

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
3	BLU	Vehicle ON mode	Measure the voltage to ground: There should be battery voltage.	Faulty headlight leveling control unit An open or high resistance in the wire
1	PNK	Under all conditions	Check for continuity to ground: There should be continuity.	Faulty headlight leveling control unit Poor ground (G401) or an open in the ground wire An open or high resistance in the wire
2	ORN	Vehicle ON mode	Measure the voltage to ground: There should be about 3 to 13 V.	Faulty headlight leveling control unit An open or high resistance in the wire