DTC B1C45:12 [BCM]
id0902f5390300
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DESCRIPTION |
Auto stop switch (windshield wiper motor) circuit malfunction |
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DETECTION CONDITION
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• Short to power supply in the auto stop switch (windshield wiper motor) circuit.
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POSSIBLE CAUSE
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• Windshield wiper motor connector or terminals malfunction
• Windshield wiper motor malfunction
• BCM connector or terminals malfunction
• Short to power supply in wiring harness between windshield wiper motor terminal D and BCM terminal 3G
• BCM malfunction
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Diagnostic Procedure
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STEP |
INSPECTION |
ACTION |
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1
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CONFIRM BCM DTC
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
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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 7.
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2
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INSPECT WINDSHIELD WIPER MOTOR CONNECTOR AND TERMINALS
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Disconnect the windshield wiper motor connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, then go to Step 6.
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No
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Go to the next step.
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3
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INSPECT WINDSHIELD WIPER MOTOR
• Inspect the windshield wiper motor.
• Is there any malfunction?
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Yes
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Replace the windshield wiper motor, then go to Step 6.
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No
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Go to the next step.
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4
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INSPECT BCM CONNECTOR AND TERMINALS
• Disconnect the BCM connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, then go to Step 6.
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No
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Go to the next step.
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5
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INSPECT AUTO STOP SWITCH CIRCUIT FOR SHORT TO POWER SUPPLY
• Verify that the windshield wiper motor and BCM connectors are disconnected.
• Reconnect the negative battery cable.
• Switch the ignition to ON.
• Measure the voltage at the windshield wiper motor terminal D (wiring harness-side).
• Is there any voltage?
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Yes
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Repair or replace the wiring harness for a possible short to power supply, then go to the next step.
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No
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Go to the next step.
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6
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VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Reconnect the negative battery cable.
• Clear the DTC using the M-MDS.
(See CLEARING DTC [BCM].)
• Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)
• Is the same DTC present?
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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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7
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [BCM].)
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No
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DTC troubleshooting completed.
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