DTC B108F:16 [BCM]

id0902f5510000

Description

Door lock switch circuit malfunction

Detection condition

•  With the door lock switch off, the BCM detects a short to ground in the door lock switch circuit.

Fail-safe

Not applicable

Possible cause

•  Power window main switch connector or terminal malfunction

•  Door lock switch (RH) malfunction

•  BCM connector or terminal malfunction

•  Short to ground in wiring harness between power window main switch terminal 1E and BCM terminal 2K

•  BCM malfunction

Description	Door lock switch circuit malfunction
Detection condition	• With the door lock switch off, the BCM detects a short to ground in the door lock switch circuit.
Fail-safe	Not applicable
Possible cause	• Power window main switch connector or terminal malfunction • Door lock switch (RH) malfunction • BCM connector or terminal malfunction • Short to ground in wiring harness between power window main switch terminal 1E and BCM terminal 2K • BCM malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY BCM DTCs AGAIN • Clear the DTC for the BCM using the M-MDS. (See CLEARING DTC [BCM].) • Retrieve the BCM DTCs using the M-MDS. (See DTC INSPECTION [BCM].) • Is the same DTC displayed?	Yes	Go to the next step.
1		No	Go to Step 7.
2	INSPECT POWER WINDOW MAIN SWITCH CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Disconnect the power window main switch 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.
2		No	Repair or replace the connector, then go to Step 6.
3	INSPECT DOOR LOCK SWITCH (RH) • Inspect the door lock switch (RH). (See DOOR LOCK SWITCH INSPECTION.) • Is the door lock switch (RH) normal?	Yes	Go to the next step.
3		No	Replace the power window main switch, then go to Step 6. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION.)
4	INSPECT BCM CONNECTOR CONDITION • Disconnect the BCM 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.
4		No	Repair or replace the connector, then go to Step 6.
5	INSPECT DOOR LOCK SWITCH CIRCUIT FOR SHORT TO GROUND • Verify that the power window main switch and BCM connectors are disconnected. • Inspect for continuity between BCM terminal 2K (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 power window main switch terminal 1E and BCM terminal 2K. 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 the next step.
5		No	Go to the next step.
6	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Clear the DTC for the BCM using the M-MDS. (See CLEARING DTC [BCM].) • Retrieve the BCM DTCs using the M-MDS. (See DTC INSPECTION [BCM].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.) Go to the next step.
6		No	Go to the next step.
7	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 [BCM].)
7		No	DTC troubleshooting completed.