[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - REAR WIPER AND WASHER - INSPECTION PROCEDURE H-1: The rear wiper does not work at all. | PRINT PAGE / INDEX / PRIOR / NEXT

| REAR WIPER AND WASHER

INSPECTION PROCEDURE H-1: The rear wiper does not work at all.
| CAUTION Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
| COMMENTS ON TROUBLE SYMPTOM If the rear wiper does not work normally, the input signal circuits to the components below, the rear wiper motor or the ETACS-ECU may be defective. Ignition switch (ACC) Rear wiper switch
| POSSIBLE CAUSES Malfunction of the rear wiper motor Malfunction of the column switch Malfunction of the ETACS-ECU Damaged harness wires and connectors
| DIAGNOSIS PROCEDURE
| Step 1. Use the MUT-II/III to confirm a diagnosis code. Check that the ETACS-ECU sets a diagnosis code. Q: Is the check result normal? YES: Refer to diagnosis code chart . NO: Go to Step 2.
| Step 2. Pulse check Check the input signals below which are related to the rear wiper.
System switch | Check conditions
--- | ---
Ignition switch (ACC) | When turned from the LOCK (OFF) position to the ACC position
Column switch (rear wiper switch) | When the switch turned from off to on
OK: The MUT-II/III sounds or the voltmeter needle fluctuates. Q: Are the check result normal? All the signals are received normally.: Go to Step 3. The ignition switch (ACC) signal is not received.: Refer to inspection procedure P-1 "The ignition switch (ACC) signal is not received ." The column switch (rear wiper switch) signal is not received.: Refer to inspection procedure P-6 "The column switch (windshield wiper washer and rear wiper washer switch) signal is not received ."
| Step 3. Connector check: F-02 rear wiper motor connector Q: Is the check result normal? YES: Go to Step 4. NO: Repair the connector.
| Step 4. Check the rear wiper motor. Refer to GROUP 51 - Rear wiper and washer . Q: Is the check result normal? YES: Go to Step 5. NO: Replace the rear wiper motor.
| Step 5. Measure the resistance at the F-02 rear wiper motor connector. Disconnect the connector, and measure at the wiring harness side. Resistance between F-02 rear wiper motor connector terminal No.1 and body earth OK: 2 Ω or less Q: Is the check result normal? YES: Go to Step 7. NO: Go to Step 6.
| Step 6. Check the wiring harness between F-02 rear wiper motor connector terminal No. 1 and body earth. NOTE: Prior to the wiring harness inspection, check intermediate connector F-05, and repair if necessary. Check the earth line for open or short circuit. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Repair the wiring harness.
| Step 7. Connector check: C-217 ETACS-ECU connector Q: Is the check result normal? YES: Go to Step 8. NO: Repair the connector.
| Step 8. Check the wiring harness between C-217 ETACS-ECU connector terminal No.16 and F-02 rear wiper motor connector terminal No.2. NOTE: Prior to the wiring harness inspection, check intermediate connector F-05 and junction block connector C-221, and repair if necessary. Check the power supply line for open or short circuit. Q: Is the check result normal? YES: Go to Step 9. NO: Repair the wiring harness.
| Step 9. Retest the system. Check that the rear wiper works normally. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ). NO: Replace the ETACS-ECU.

[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - REAR WIPER AND WASHER - INSPECTION PROCEDURE H-1: The rear wiper does not work at all. | PRINT PAGE / INDEX / PRIOR / NEXT

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