Montero Sport LS 2WD V6-3.0L SOHC (1998)
1. Connect scan tool MB991502, to the data link connector.
2. Check that the tone alarm of the scan tool MB991502 sounds when the driver's side door is opened.
If the tone alarm of the scan tool MB991502 does not sound, there may be a malfunction in the input signal from the driver's side door switch. Go
to Step 2.
If the tone alarm of the scan tool MB991 502 sounds when the driver's side door is opened [front door switch (LH) is turned to ON], the input
signal from the driver's side door switch to the scan tool MB991 502 is normal. Replace the ETACS-ECU. Check that the malfunction is
eliminated.
<Vehicles with tone alarm-ECU>
Go to Step 2.
STEP 2. Check the driver's side door switch.
1. Remove the driver's side door switch.
2. Check the continuity of the driver's side door switch.
If the driver's side door switch is in good condition, go to Step 3.
If the driver's side door switch is defective, replace the driver's side door switch. Check that the malfunction is eliminated.
STEP 3. Check the driver's side door switch ground circuit system.
Check continuity between the driver's side door switch body (metal section) and ground.
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There should be continuity (0 Ohms).
If continuity, go to Step 4.
If no continuity, repair or replace the switch. Check that the malfunction is eliminated.
