DTC B1314:11 [FRONT BODY CONTROL MODULE (FBCM)]


id0902p2008000

System malfunction location

Illumination output circuit malfunction

Detection condition
•  The front body control module (FBCM) detects a short to ground in the illumination output circuit with the ignition switched ON (engine off or on).
Fail-safe
Possible cause
•  Front body control module (FBCM) connector or terminal malfunction
•  Illuminations malfunction
•  Short to ground in front body control module (FBCM) illumination output circuit
•  Front body control module (FBCM) malfunction
System wiring diagram

Diagnostic Procedure

Step

Inspection

Action

1
VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN
•  Clear front body control module (FBCM) DTCs using the M-MDS.
•  Switch the ignition ON (engine off or on).
•  Perform the front body control module (FBCM) DTC inspection using the M-MDS.
•  Is DTC B1314:11 displayed?
Yes
Go to the next step.
No
Go to Step 6.
2
VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs
•  Perform the front body control module (FBCM) DTC inspection using the M-MDS.
•  Is the DTC displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
No
Go to the next step.
3
INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION
•  Switch the ignition to off.
•  Disconnect the front body control module (FBCM) 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
INSPECT FRONT BODY CONTROL MODULE (FBCM) ILLUMINATION OUTPUT CIRCUIT FOR SHORT TO GROUND
•  Verify that the front body control module (FBCM) connector is disconnected.
•  Turn the light switch to the TNS position.
•  Inspect for continuity between front body control module (FBCM) terminal 3J and body ground.
•  Is there continuity?
Yes
Inspect the illuminations.
•  If there is any malfunction:
―  Replace the malfunctioning illuminations, then go to the next step.
•  If there is no malfunction:
―  Repair or replace the wiring harness which has a short to ground, then go to the next step.
No
Go to the next step.
5
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Reconnect all the disconnected connectors.
•  Clear front body control module (FBCM) DTCs using the M-MDS.
•  Switch the ignition ON (engine off or on).
•  Perform the front body control module (FBCM) DTC inspection using the M-MDS.
•  Is DTC B1314:11 displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the front body control module (FBCM), then go to the next step.
No
Go to the next step.
6
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning part according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.