Galant V6-3.0L SOHC (2003)
Windshield Washer Motor Circuit Part 2
CIRCUIT OPERATION
The windshield washer switch sends a signal through the column-ECU (incorporated in the column switch) to the front-ECU. If the column-ECU sends a
windshield washer switch "ON" signal to the front-ECU, the front-ECU turns on the relay (incorporated in the front-ECU), thus causing the windshield
washer motor to be turned on.
TECHNICAL DESCRIPTION (COMMENT)
If the windshield washer does not work normally, the windshield washer motor, the column switch (windshield wiper and washer switch) or the
front-ECU may be defective.
TROUBLESHOOTING HINTS
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The windshield washer motor may be defective
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The column switch (windshield wiper and washer switch) may be defective
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The front-ECU may be defective
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
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MB991502: Scan Tool (MUT-II)
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MB991862: SWS monitor kit
STEP 1. Verify the windshield wiper.
Q: Does the windshield wiper operate normally?
YES: Go to Step 2.
NO: Refer to Inspection Procedure F-1 "Windshield wiper does not work at all."
