DTC B1472[PJB]
id090208831500
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DTC B1472 |
Headlight on status switch input circuit short to ground |
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DETECTION CONDITION
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Short to GND in wiring harness between PJB and light switch (low beam)
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POSSIBLE CAUSE
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• Short to GND in wiring harness between PJB terminal J-03 AS and light switch terminal B
• Light 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 LIGHT SWITCH CONNECTOR
• Disconnect the light switch connector.
• Inspect the light 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 LIGHT SWITCH SIGNAL CIRCUIT FOR SHORT TO GND
• Inspect for continuity between PJB terminal J-03 AS (wiring harness-side) and body GND.
• Is there continuity?
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Yes
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Repair or replace the wiring harness for a possible short to GND, then go to Step 5.
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No
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Go to the next step.
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4
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INSPECT LIGHT SWITCH
• Inspect the light switch.
(See LIGHT SWITCH INSPECTION.)
• Is there any malfunction?
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Yes
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Replace the light 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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