DTC U2030[PJB]
id090208833400
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DTC U2030 |
Rain sensor communication fault |
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DETECTION CONDITION
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Communication error to rain sensor
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POSSIBLE CAUSE
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• Open circuit in wiring harness between PJB terminal J-06 AD and rain sensor terminal C
• Short to power supply in wiring harness between PJB terminal J-06 AD and rain sensor terminal C
• Short to GND in wiring harness between PJB terminal J-06 AD and rain sensor terminal C
• Rain sensor 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 RAIN SENSOR CONNECTOR
• Turn the ignition switch off.
• Disconnect the rain sensor connector.
• Inspect the rain sensor 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 6.
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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 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 RAIN SENSOR CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between PJB terminal J-06 AD (wiring harness-side) and rain sensor terminal C (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 6.
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4
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INSPECT RAIN SENSOR SIGNAL CIRCUIT FOR SHORT TO GND
• Inspect for continuity between PJB terminal J-06 AD (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 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 RAIN SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between PJB terminal J-06 AD (wiring harness-side) and body GND.
• Is the voltage B+?
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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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Replace the Rain sensor, then go to the next step.
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6
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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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Troubleshooting completed.
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