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1
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VERIFY BCM DTCs AGAIN
• Clear the DTC for the BCM using the M-MDS.
• Lock/unlock all the doors by operating the driver’s door lock knob.
• Retrieve the BCM DTCs using the M-MDS with the front door lock-link switch (driver's side) locked.
• Is the same DTC displayed?
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Yes
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Go to the next step.
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No
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Go to Step 8.
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2
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VERIFY OTHER BCM DTCs AGAIN
• Clear the DTC for the BCM using the M-MDS.
• Retrieve the BCM DTCs using the M-MDS with the front door lock-link switch (driver's side) locked.
• Is DTC B126A:11 or B126A:13 displayed?
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Yes
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Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
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No
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Go to the next step.
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3
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INSPECT FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER'S SIDE) CONNECTOR CONDITION
• Switch the ignition off.
• Disconnect the negative battery cable.
• Disconnect the front door latch and lock actuator (driver's side) connector.
• Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
• Is the connector normal?
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Yes
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Go to the next step.
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No
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Repair or replace the connector, then go to Step 7.
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4
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INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER'S SIDE)
• Inspect the front door lock-link switch (driver's side).
• Is the front door lock-link switch (driver's side) normal?
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Yes
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Go to the next step.
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No
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Replace the front door latch and lock actuator (driver's side), then go to Step 7.
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5
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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?
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Yes
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Go to the next step.
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No
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Repair or replace the connector, then go to Step 7.
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6
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INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER'S SIDE) UNLOCK CIRCUIT FOR SHORT TO GROUND
• Verify that the BCM and front door latch and lock actuator (driver's side) connectors are disconnected.
• Inspect for continuity between the following terminals (wiring harness-side) and body ground:
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― Front door latch and lock actuator (LH) terminal B (L.H.D.)
― Front door latch and lock actuator (RH) terminal L (R.H.D.)
• Is there continuity?
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Yes
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Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
• Front door latch and lock actuator (LH) terminal B—BCM terminal 2B (L.H.D.)
• Front door latch and lock actuator (RH) terminal L—BCM terminal 2B (R.H.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 the next step.
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No
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Go to the next step.
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7
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VERIFY THAT REPAIRS HAVE BEEN COMPLETED
• Always reconnect all disconnected connectors.
• Conenct the negative battery cable.
• Clear the DTC for the BCM using the M-MDS.
• Lock/unlock all the doors by operating the driver’s door lock knob.
• Retrieve the BCM DTCs using the M-MDS with the front door lock-link switch (driver's side) locked.
• Is the same DTC displayed?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the BCM.
Go to the next step.
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No
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Go to the next step.
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8
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VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
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Yes
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Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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