DTC B1D00:13 [ADAPTIVE LED HEADLIGHTS CONTROL MODULE]

id1502c1001200

Description

Headlight (LH) circuit malfunction
Detection condition
•  The adaptive LED headlights control module detected an open circuit in the headlight (LH) circuit during the headlight LO on control with the ignition switched ON (engine off or on).
Fail-safe
•  The headlights LO (LH) and side-illuminating LED turn off.
•  When the setting is on using the personalization feature, the headlights HI turn on. (When setting is off using personalization feature, headlight HI illumination on/off depends on control by front body control module (FBCM))
•  Control of the headlight auto leveling system is continued.
Possible cause
•  DTCs are stored in the front body control module (FBCM).
―  Headlight LO (LH) circuit malfunction
•  Front combination light (LH) connector or terminal malfunction
•  Adaptive LED headlights control module connector or terminal malfunction
•  Short to ground in wiring harness between adaptive LED headlights control module terminal I and front combination light (LH) terminal N
•  Open circuit in wiring harness between adaptive LED headlights control module terminal I and front combination light (LH) terminal N
•  Front combination light (LH) malfunction
•  Adaptive LED headlights control module malfunction

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs
•  Retrieve the front body control module (FBCM) DTCs using the M-MDS.
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)].)
No
Go to the next step.
2
INSPECT FRONT COMBINATION LIGHT (LH) CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the front combination light (LH) connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 7.
3
INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE CONNECTOR CONDITION
•  Disconnect the adaptive LED headlights control module connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 7.
4
INSPECT HEADLIGHT (LH) MALFUNCTION DETECTION CIRCUIT FOR SHORT TO GROUND
•  Verify that the front combination light (LH) and adaptive LED headlights control module connectors are disconnected.
•  Inspect for continuity between front combination light (LH) terminal N (wiring harness-side) and body ground.
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between adaptive LED headlights control module terminal I and front combination light (LH) terminal N.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to Step 7.
No
Go to the next step.
5
INSPECT HEADLIGHT (LH) MALFUNCTION DETECTION CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition off.
•  Verify that the front combination light (LH) and adaptive LED headlights control module connectors are disconnected.
•  Inspect the wiring harness for continuity between adaptive LED headlights control module terminal I (wiring harness-side) and front combination light (LH) terminal N (wiring harness-side).
•  Is there continuity?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between adaptive LED headlights control module terminal I and front combination light (LH) terminal N.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 7.
6
VERIFY IF MALFUNCTIONING LOCATION IS FRONT COMBINATION LIGHT (LH) DEPENDING ON REPEATABILITY
•  Always reconnect all disconnected connectors.
•  Connect the negative battery cable.
•  Clear the DTC for the adaptive LED headlights control module using the M-MDS.
•  Operate the light switch to the HEAD position and the dimmer switch to the LO position.
•  Switch the ignition ON (engine off or on) and wait for 5 s or more.
•  Retrieve the adaptive LED headlights control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the front combination light (LH), then go to the next step.
(See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION.)
No
Go to Step 8.
7
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Connect the negative battery cable.
•  Clear the DTC for the adaptive LED headlights control module using the M-MDS.
•  Operate the light switch to the HEAD position and the dimmer switch to the LO position.
•  Switch the ignition ON (engine off or on) and wait for 5 s or more.
•  Retrieve the adaptive LED headlights control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the adaptive LED headlights control module.
Go to the next step.
No
Go to the next step.
8
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [ADAPTIVE LED HEADLIGHTS CONTROL MODULE].)
No
DTC troubleshooting completed.