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 input signal circuit to the inhibitor switch ("R" position) or the ETACS-ECU may be defective.

POSSIBLE CAUSES

Malfunction of the inhibitor switch

Malfunction of the ETACS-ECU

Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Function diagnosis by using the SWS monitor

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

<Selected item> REAR WIPER-REV. INTERLOCK

Ignition switch: ON

Rear wiper switch: ON

Shift position: R position

Item No.	Item name	Normal condition
Item 41	INHIBITOR SW	ON

OK: Normal condition is displayed.

Q: Is the check result normal?

YES: Go to Step 2

.
NO: Refer to Inspection Procedure P-3 "The inhibitor switch (reverse position) signal is not received

Step 2. 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?

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

).
NO: Replace the ETACS-ECU.