Montero XLS 4WD V6-3.5L SOHC (2001)
Connectors
CIRCUIT OPERATION
A signal from the rear washer switch is sent through the column-ECU inside the column switch to the ETACS-ECU. The signal turns on the relay inside
the ETACS-ECU to operate the washer motor.
TECHNICAL DESCRIPTION (COMMENT)
The rear 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 rear washer motor
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Malfunction of the column switch (windshield wiper and windshield washer switch)
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Malfunction of the ETACS-ECU
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Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
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MB991223: Test Harness Set MB991502: Scan Tool (MUT-II)
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MB991529: Diagnostic Trouble Code Check Harness
STEP 1. Check the rear wiper operation.
Q: Does the rear wiper work normally?
YES: Go to Step 2 <when using scan tool MB991502> or 3 <when using a voltmeter>.
NO: Solve the problem first.
STEP 2. Check the input signal (by using scan tool MB991502).
Check the input signal from the rear washer switch:
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.