Montero XLS 4WD V6-3.5L SOHC (2001)
1. Connect scan tool MB991502 to the data link connector.
2. Check that the tone alarm of scan tool MB991502 sounds when the input signal enters.
Q: Does the tone alarm of scan tool MB991502 sound when the input signal enters?
YES: Go to Step 4.
NO: Check the rear washer switch input signal circuit. Refer to Inspection Procedure Q-15.
STEP 3. Check the input signal (by using a voltmeter).
Check the input signal from the rear washer switch:
1. Use special tool MB991529 to connect a voltmeter between ground terminal 4 or 5 and ETACS-ECU terminal 9 of the data link connector.
2. Check that the voltmeter indicator deflects once when the input signal enters.
Q: Does the voltmeter indicator deflect?
YES: Go to Step 4.
NO: Check the rear washer switch input signal circuit. Refer to Inspection Procedure Q-15.
STEP 4. Check the rear washer motor.
1. Disconnect rear washer motor connector I-08.
2. Fill the washer tank with water.
3. Check that the water squirts out strongly when battery positive voltage is applied to terminals 1 and 2.
Q: Is the rear washer motor in good condition?
YES: Go to Step 5.
NO: Replace it. The rear washer should work normally
