Inspection Procedure H-3: When the selector lever is moved to "R" position during the rear wiper operation, the rear wiper does not operate at the continuous mode.

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 operate consecutively when the selector lever is moved to the R position during the rear wiper operation, the shift position input signal circuit or the ETACS-ECU may be defective.

POSSIBLE CAUSES

Malfunction of the ETACS-ECU
Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the operation of the rear wiper.

Check that the rear wiper system should work normally by operating the rear wiper switch.

Q. Is the check result normal?

	Go to Step 2.

	Refer to Inspection Procedure H-1 "The rear wiper does not work at all ."

Step 2. Pulse check

Check the input signal, which are related to the R (reverse) gear-linked rear wiper operation.

System switch	Check condition
Inhibitor switch (reverse position)	When the ignition switch is turned ON and the selector lever is moved to the R position.

OK: The M.U.T.-III sounds or the voltmeter needle fluctuates.

Q. Is the check result normal?

	Go to Step 3.

	Refer to diagnosis code No.11 inspection procedure "Engine-A/T-ECU time-out (related to engine) ."

Step 3. Retest the system.

Check that the rear wiper operates consecutively when the selector lever is moved to the R position during the rear wiper operation.

Q. Is the check result normal?

	The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

	Replace the ETACS-ECU.