Exterior Lights Symptom Troubleshooting - LED headlight does not go off
LED headlight does not go off
- Combination light switch OFF position check
-1. Connect the HDS to the data link connector (DLC) .
-2. Turn the combination light switch OFF.
-3. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit Headlight Switch (HEADLIGHT) OFF Is data list values correct?
YES
Go to step 4.
NO
Go to step 2.
- Combination light switch check
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Do the combination light switch test .
Is the switch OK?
YES
Go to step 3.
NO
- Shorted wire check (H/L ON SW line)
-1. Disconnect the following connectors.
Body control module connector C (28P)Automatic lighting/rain sensor 5P connector (with automatic wiper)Automatic lighting control unit-sensor 5P connector (with automatic lighting and without automatic wiper) -2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) modeCombination light switch 12P connector: disconnectedBody control module connector C (28P): disconnectedAutomatic lighting/rain sensor 5P connector (with automatic wiper): disconnectedAutomatic lighting control unit-sensor 5P connector (with automatic lighting and without automatic wiper): disconnected Test point 1 Combination light switch 12P connector (female terminals) No. 7: Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the wire.
NO
The H/L ON SW wire is OK. Replace the body control module .
- DTC check
-1. Clear the DTCs with the HDS.
-2. Turn the vehicle to the OFF (LOCK) mode then the ON mode.
-3. Wait for at least 10 seconds.
-4. Check for Relay Control Module DTCs with the HDS.
DTC (Relay Control Module)
DTC Description DTC Are any DTCs indicated?
YES
Go to the indicated DTC's troubleshooting .
NO
Repair a short to power in the H/L HI or H/L LO wire.