INSPECTION PROCEDURE G-5: Windshield Wiper and Washer: The windshield intermittent wiper interval cannot be adjusted by using the variable intermittent wiper control switch.: Diagnosis

Required Special Tools:

MB991223: Harness Set
MB992006: Extra Fine Probe
MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: MUT-III USB Cable
- MB991910: MUT-III Main Harness A
MB991813: SWS Monitor Kit
- MB991806: SWS Monitor Cartridge
- MB991812: SWS Monitor Harness (For Column-ECU)
- MB991822: Probe Harness

Check the input signal by using "DATA LIST" menu of the SWS monitor.

Set each switch to the following condition to check input signals from the variable intermittent wiper control switch:

Ignition switch: ACC
Windshield wiper switch: INT

CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Connect special tool MB991910 before connecting special tool MB991812. Be sure to connect special tool MB991806 after turning on special tool MB991824.

Connect the special tool. Refer to "HOW TO CONNECT SWS MONITOR ."
Operate scan tool MB991958 according to the procedure below to display "F.WIPER INT."
1. Select "Interactive Diagnosis."
2. Select "System select."
3. Select "SWS."
4. Select "SWS MONITOR."
5. Select "Function Diag."
6. Select "WIPER."
7. Select "F.WIPER INT."

Check that normal conditions are displayed for the items described in the table below.

NOTE: Also check that the windshield wiper interval changes smoothly when the variable intermittent wiper control switch is rotated from "SLOW" to "FAST" position.

ITEM AND NORMAL CONDITION

ITEM NO.	ITEM NAME	NORMAL CONDITION
ITEM 37	INT WIPER TIME	1.6 - 19.0 s

Fig 1: Connecting Special Tool To Data Link Connector

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Q: Does the value change within the normal range when the windshield intermittent wiper interval adjusting knob is rotated?

YES : Replace the front-ECU. Check that the windshield intermittent wiper interval changes according to the vehicle speed or while the windshield intermittent wiper interval adjusting knob is rotated.

NO : Refer to INSPECTION PROCEDURE M-8 "ETACS-ECU DOES NOT RECEIVE ANY SIGNAL FROM THE VARIABLE INTERMITTENT WIPER CONTROL SWITCH ."

Fig 2: Identifying Column Switch Connector

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.