DTC B2175[PJB]
id090208832400
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DTC B2175 |
A/C request signal circuit short to ground |
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DETECTION CONDITION
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Short to GND in wiring harness between PJB and climate control unit (A/C ON request)
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POSSIBLE CAUSE
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• Short to GND in wiring harness between PJB terminal J-04 AF and climate control unit terminal M
• Climate control unit 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 CLIMATE CONTROL UNIT CONNECTOR
• Disconnect the climate control unit connector.
• Inspect the climate control unit 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 CLIMATE CONTROL UNIT SIGNAL CIRCUIT FOR SHORT TO GND
• Inspect for continuity between PJB terminal J-04 AF (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 CLIMATE CONTROL UNIT
• Inspect the climate control unit.
• Is there any malfunction?
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Yes
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Replace the climate control unit, 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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