DTC B1D00:13 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE]


id1502b6026200

Description

Headlight (LH) circuit malfunction

Detection condition
•  The adaptive LED headlight control module detected a malfunction in the headlight (LH) circuit during the headlight LO on control with the ignition switched ON (engine off or on).
Fail-safe
•  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
•  AFS control module connector or terminal malfunction
•  Front combination light (LH) malfunction
•  AFS control module malfunction
System wiring diagram

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.
No
Go to the next step.
2
INSPECT FRONT COMBINATION LIGHT (LH) CONNECTOR CONDITION
•  Switch the ignition off.
•  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 5.
3
INSPECT AFS CONTROL MODULE CONNECTOR CONDITION
•  Disconnect the AFS 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 5.
4
VERIFY IF MALFUNCTIONING LOCATION IS FRONT COMBINATION LIGHT (LH) DEPENDING ON REPEATABILITY
•  Always reconnect all disconnected connectors.
•  Clear the DTC for the AFS 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 AFS 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.
No
Go to Step 6.
5
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Clear the DTC for the AFS 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 AFS 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 AFS control module.
Go to the next step.
No
Go to the next step.
6
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.