DTC B2479[PJB]
id090208833000
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DTC B2479 |
Park brake switch circuit open |
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DETECTION CONDITION
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Open circuit in wiring harness between PJB and parking brake switch
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POSSIBLE CAUSE
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• Open circuit in wiring harness between PJB terminal J-04 AB and parking brake switch terminal A
• Parking brake switch malfunction
• PJB malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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INSPECT PARKING BRAKE SWITCH CONNECTOR
• Turn the ignition switch off.
• Disconnect the parking brake switch connector.
• Inspect the parking brake switch connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the terminal, then go to Step 5.
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No
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Go to the next step.
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2
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INSPECT PJB CONNECTOR
• Disconnect the PJB connector.
• Inspect the PJB connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the terminal, then go to Step 5.
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No
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Go to the next step.
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3
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INSPECT PARKING BRAKE SWITCH SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between PJB terminal J-04 AB (wiring harness-side) and parking brake switch terminal A (wiring harness-side).
• Is there continuity?
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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 wiring harness for a possible open circuit, then go to Step 5.
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4
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INSPECT PARKING BRAKE SWITCH
• Inspect the parking brake switch.
• Is there any malfunction?
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Yes
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Replace the parking brake switch, then go to the next step.
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No
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Go to the next step.
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5
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VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PJB memory using the M-MDS.
• Perform the self-test.
(See PJB SELF-TEST[PJB].)
• Is the same DTC present?
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Yes
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Replace the PJB.
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No
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DTC troubleshooting completed.
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