INSPECTION PROCEDURE G-5: The intermittent wiper interval can not be adjusted by operating the windshield intermittent wiper volume control.

[54C] SMART WIRING SYSTEM (SWS) USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - WINDSHIELD WIPER AND WASHER - INSPECTION PROCEDURE G-5: The intermittent wiper interval can not be adjusted by operating the windshield intermittent wiper volume control.

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CAUTION

Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

The column switch or the front-ECU may be defective.

POSSIBLE CAUSES

Malfunction of the column switch

Malfunction of the front-ECU

Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the ETACS ANAL data by using the SWS monitor.

Rotate the windshield intermittent wiper volume.

Item No.	Item name	Normal conditions
Item 02	WPR VOL VOLT	Displays the voltage in the windshield wiper intermittent volume. Changes in accordance with the position of the windshield wiper intermittent volume.

OK: Normal condition is displayed.

Q: Is the check result normal?

YES: Go to Step 2

.
NO: Refer to Inspection Procedure P-7 "The windshield intermittent wiper volume signal is not received

Step 2. Retest the system.

Check that the windshield intermittent wiper interval can be adjusted by operating the windshield intermittent wiper volume control.

OK: The intermittent wiper interval is changed as the intermittent wiper volume is rotated.

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 front-ECU.

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