Diagnostic procedure

DTC U2030 DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	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?	Yes	Repair or replace the terminal, then go to Step 6.
1		No	Go to the next step.
2	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?	Yes	Repair or replace the terminal, then go to Step 6.
2		No	Go to the next step.
3	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?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 6.
4	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?	Yes	Repair or replace the wiring harness for a possible short to GND, then go to Step 6.
4		No	Go to the next step.
5	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+ ?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to the next step.
5		No	Replace the Rain sensor, then go to the next step. (See RAIN SENSOR REMOVAL/INSTALLATION .)
6	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 ). Is the same DTC present?	Yes	Replace the PJB. (See PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION .)
6		No	Troubleshooting completed.