Description

Door lock-link switch (LH) circuit malfunction

Detection condition

• Any of the following conditions is met with the ignition switched ON (engine off or on).

• The BCM detected a short to ground in the door lock-link switch (LH) lock circuit for 5 s or more with the door lock-link switch (LH) unlocked.

• The BCM detected a short to ground in the door lock-link switch (LH) unlock circuit for 5 s or more with the door lock-link switch (LH) locked.

Fail-safe

Not applicable

Possible cause

• Door latch and lock actuator (LH) connector or terminal malfunction

• Door lock-link switch (LH) malfunction

• Start stop unit connector or terminal malfunction

• BCM connector or terminal malfunction

• Short to ground in wiring harness between the following terminals:

• Door latch and lock actuator (LH) terminal B—BCM terminal 2B

• Door latch and lock actuator (LH) terminal D—BCM terminal 2A

• Start stop unit terminal 1P—Door latch and lock actuator (LH) terminal D

• Start stop unit malfunction

• BCM malfunction

Step

Inspection

Action

1

• Clear the DTC for the BCM using the M-MDS.

  (See CLEARING DTC [BCM].)

• Perform the following work:

• Lock all the doors by operating the driver’s door lock knob.

• Wait for 5 s or more.

• Unlock all the doors by operating the driver’s door lock knob.

• Wait for 5 s or more.

• Retrieve the BCM DTCs using the M-MDS.

  (See DTC INSPECTION [BCM].)

• Is the same DTC displayed?

Yes

Go to the next step.

No

Go to Step 9.

2

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Disconnect the door latch and lock actuator (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 8.

3

• Inspect the door lock-link switch (LH).

  (See DOOR LOCK-LINK SWITCH INSPECTION.)

• Is the door lock-link switch (LH) normal?

Yes

Go to the next step.

No

Replace the door latch and lock actuator (LH), then go to Step 8.

(See DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)

4

• Disconnect the start stop unit 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 8.

5

• 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.

No

Repair or replace the connector, then go to Step 8.

6

• Verify that the door latch and lock actuator (LH), start stop unit and BCM connectors are disconnected.

• Inspect for continuity between the following terminals (wiring harness-side) and body ground:

• Door latch and lock actuator (LH) terminal B

• Door latch and lock actuator (LH) terminal D

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Door latch and lock actuator (LH) terminal B—BCM terminal 2B

• Door latch and lock actuator (LH) terminal D—BCM terminal 2A

• Start stop unit terminal 1P—Door latch and lock actuator (LH) terminal D

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 8.

No

Go to the next step.

7

• Inspect the start stop unit.

  (See START STOP UNIT INSPECTION.)

• Is the start stop unit normal?

Yes

Go to the next step.

No

Replace the start stop unit, then go to the next step.

(See START STOP UNIT REMOVAL/INSTALLATION.)

8

• 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].)

• Perform the following work:

• Lock all the doors by operating the driver’s door lock knob.

• Wait for 5 s or more.

• Unlock all the doors by operating the driver’s door lock knob.

• Wait for 5 s or more.

• 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.

No

Go to the next step.

9

• Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [BCM].)

No

DTC troubleshooting completed.