DTC B1D06:13 [FRONT BODY CONTROL MODULE (FBCM)]

id0902p2009600

Description

Turn light (LH) circuit malfunction
Detection condition
•  Front body control module (FBCM) detects an open circuit or short to power supply in the turn light (LH) circuit with the ignition switched ON (engine off or on).
Fail-safe
Not applicable
Possible cause
•  Front body control module (FBCM) connector or terminal malfunction
•  Front turn light bulb (LH) malfunction (Without adaptive LED headlights)
•  Front combination light (LH) connector or terminal malfunction
•  Open circuit in wiring harness between front combination light (LH) terminal O and body ground
•  Short to power supply in wiring harness between front combination light (LH) terminal E and front body control module (FBCM) terminal 2B
•  Open circuit in wiring harness between front combination light (LH) terminal E and front body control module (FBCM) terminal 2B
•  Front turn light malfunction (With adaptive LED headlights)
•  Rear turn light bulb (LH) malfunction
•  Rear combination light (LH) connector or terminal malfunction
•  Open circuit in wiring harness between rear combination light (LH) terminal F and body ground
•  Short to power supply in wiring harness between rear combination light (LH) terminal A and front body control module (FBCM) terminal 2D
•  Open circuit in wiring harness between rear combination light (LH) terminal A and front body control module (FBCM) terminal 2D
•  Power outer mirror (LH) connector or terminal malfunction
•  Side turn light (LH) malfunction
•  Open circuit in wiring harness between power outer mirror (LH) terminal G and body ground
•  Short to power supply in wiring harness between power outer mirror (LH) terminal E and front body control module (FBCM) terminal 2F
•  Open circuit in wiring harness between power outer mirror (LH) terminal E and front body control module (FBCM) terminal 2F
•  Front body control module (FBCM) malfunction
*1   :Without adaptive LED headlights
*2   :With adaptive LED headlights

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN
•  Clear the DTC for the front body control module (FBCM) using the M-MDS.
•  Retrieve the front body control module (FBCM) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Go to the next step.
No
Go to Step 24.
2
DETERMINE MALFUNCTIONING LIGHT
•  Operate the turn switch to the LH position.
•  Are there any lights among the following which do not flash or continue to be illuminated?
?  Front turn light (LH)
?  Rear turn light (LH)
?  Side turn light (LH)
Yes
All lights do not flash or continue to be illuminated:
•  Go to the next step.
Front turn light (LH) do not flash or continue to be illuminated:
Without adaptive LED headlights:
•  Go to Step 4.
With adaptive LED headlights:
•  Go to Step 5.
Rear turn light (LH) do not flash or continue to be illuminated:
•  Go to Step 11.
Side turn light (LH) do not flash or continue to be illuminated:
•  Go to Step 17.
No
Go to Step 23.
3
INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  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 Step 23.
No
Repair or replace the connector, then go to Step 23.
4
INSPECT FRONT TURN LIGHT BULB (LH)
•  Inspect the front turn light bulb (LH).
•  Is the bulb normal?
Yes
Go to the next step.
No
Replace the front turn light bulb, then go to Step 23.
(See FRONT TURN LIGHT BULB REMOVAL/INSTALLATION.)
5
INSPECT FRONT COMBINATION LIGHT (LH) CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  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 23.
6
INSPECT FRONT TURN LIGHT (LH) GROUND CIRCUIT FOR OPEN CIRCUIT
•  Verify that the front combination light (LH) connector is disconnected.
•  Inspect for continuity between front combination light (LH) terminal O (wiring harness-side) and body ground.
•  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 front combination light (LH) terminal O and body ground.
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 23.
7
INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION
•  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 23.
8
INSPECT FRONT TURN LIGHT (LH) CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the front combination light (LH) and front body control module (FBCM) connectors are disconnected.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off or on).
•  Measure the voltage at the front body control module (FBCM) terminal 2B (wiring harness-side).
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between front combination light (LH) terminal E and front body control module (FBCM) terminal 2B.
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 power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 23.
9
INSPECT FRONT TURN LIGHT (LH) CONTROL CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Verify that the front combination light (LH) and front body control module (FBCM) connectors are disconnected.
•  Inspect for continuity between front combination light (LH) terminal E (wiring harness-side) and front body control module (FBCM) terminal 2B (wiring harness-side).
•  Is there continuity?
Yes
Without adaptive LED headlights:With adaptive LED headlights:
Go to Step 23.
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between front combination light (LH) terminal E and front body control module (FBCM) terminal 2B.
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 23.
10
VERIFY IF MALFUNCTIONING LOCATION IS FRONT TURN LIGHT (LH) DEPENDING ON REPEATABILITY
•  Always reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  Clear the DTC for the front body control module (FBCM) using the M-MDS.
•  Retrieve the front body control module (FBCM) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the front combination light (LH), then go to Step 23.
(See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION.)
No
Go to Step 24.
11
INSPECT REAR TURN LIGHT BULB (LH)
•  Inspect the rear turn light bulb (LH).
•  Is the rear turn light bulb (LH) normal?
Yes
Go to the next step.
No
Replace the rear turn light bulb (LH), then go to Step 23.
(See REAR TURN LIGHT BULB REMOVAL/INSTALLATION.)
12
INSPECT REAR COMBINATION LIGHT (LH) CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the rear 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 23.
13
INSPECT REAR TURN LIGHT (LH) GROUND CIRCUIT FOR OPEN CIRCUIT
•  Verify that the rear combination light (LH) connector is disconnected.
•  Inspect for continuity between rear combination light (LH) terminal F (wiring harness-side) and body ground.
•  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 rear combination light (LH) terminal F and body ground.
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 23.
14
INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION
•  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 23.
15
INSPECT REAR TURN LIGHT (LH) CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the rear combination light (LH) and front body control module (FBCM) connectors are disconnected.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off or on).
•  Measure the voltage at the front body control module (FBCM) terminal 2D (wiring harness-side).
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between rear combination light (LH) terminal A and front body control module (FBCM) terminal 2D.
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 power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 23.
16
INSPECT REAR TURN LIGHT (LH) CONTROL CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Verify that the rear combination light (LH) and front body control module (FBCM) connectors are disconnected.
•  Inspect for continuity between rear combination light (LH) terminal A (wiring harness-side) and front body control module (FBCM) terminal 2D (wiring harness-side).
•  Is there continuity?
Yes
Go to Step 23.
No
Refer to the wiring diagram and verify whether or not there is a common connector between rear combination light (LH) terminal A and front body control module (FBCM) terminal 2D.
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 23.
17
INSPECT POWER OUTER MIRROR (LH) CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the power outer mirror (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 23.
18
INSPECT SIDE TURN LIGHT (LH)
•  Inspect the side turn light (LH).
•  Is the side turn light (LH) normal?
Yes
Go to the next step.
No
Replace the power outer mirror (LH), then go to Step 23.
(See POWER OUTER MIRROR REMOVAL/INSTALLATION.)
(See SIDE TURN LIGHT REMOVAL/INSTALLATION.)
19
INSPECT SIDE TURN LIGHT (LH) GROUND CIRCUIT FOR OPEN CIRCUIT
•  Verify that the power outer mirror (LH) connector is disconnected.
•  Inspect for continuity between power outer mirror (LH) terminal G (wiring harness-side) and body ground.
•  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 power outer mirror (LH) terminal G and body ground.
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 23.
20
INSPECT FRONT BODY CONTROL MODULE (FBCM) CONNECTOR CONDITION
•  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 23.
21
INSPECT SIDE TURN LIGHT (LH) CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the power outer mirror (LH) and front body control module (FBCM) connectors are disconnected.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off or on).
•  Measure the voltage at the front body control module (FBCM) terminal 2F (wiring harness-side).
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between power outer mirror (LH) terminal E and front body control module (FBCM) terminal 2F.
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 power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 23.
22
INSPECT SIDE TURN LIGHT (LH) CONTROL CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Verify that the power outer mirror (LH) and front body control module (FBCM) connectors are disconnected.
•  Inspect for continuity between power outer mirror (LH) terminal E (wiring harness-side) and front body control module (FBCM) terminal 2F (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 power outer mirror (LH) terminal E and front body control module (FBCM) terminal 2F.
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 the next step.
23
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  Clear the DTC for the front body control module (FBCM) using the M-MDS.
•  Retrieve the front body control module (FBCM) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the front body control module (FBCM).
Go to the next step.
No
Go to the next step.
24
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 [FRONT BODY CONTROL MODULE (FBCM)].)
No
DTC troubleshooting completed.