Montero Sport XS 2WD V6-3.5L SOHC (2001)
STEP 2. Check the input signal from the driver's side door switch (by using a voltmeter).
Check the input signals from the following switches:
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: Replace the ETACS-ECU. Check that the malfunctions eliminated.
NO: Go to Step 3.
STEP 3. Check the driver's side door switch
Remove the driver's side door switch.
Q: Is the driver's side door switch in good condition?
YES: Go to Step 4.
NO: Replace it. Check that the malfunction is eliminated.
STEP 4. Check the driver's side door switch ground circuit
