Eclipse RS L4-2350cc 2.4L SOHC MFI (2002)
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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Malfunction of the windshield washer motor
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Malfunction of the column switch (windshield wiper and washer switch)
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Malfunction of the front-ECU
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Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
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MB991223: Test Harness Set
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MB991502: Scan Tool (MUT-II)
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MB991862: SWS Monitor Kit
STEP 1. Check the windshield wiper.
Q: Does the windshield wiper operate normally?
YES: Go to Step 2.
NO: Refer to Inspection Procedure G-1 "Windshield wiper does not work at all."
STEP 2. Use scan tool to select "ECU CHECK" on the SWS monitor display.
Check the following ECUs:
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Column-ECU
-
Front-ECU
CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991502. Also connect SWS monitor kit MB991862 after turning on scan tool MB991502.
1. Connect scan tool MB991502 to the data link connector.
2. Connect SWS monitor kit MB991862 to the column switch connector.
