Mitsubishi Montero Sport (2004+). Manual - part 787
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS) <RWD>
35B-29
STEP 1. Check the stoplight operation.
Q: Does the stoplight come on and go out correctly?
YES : Go to Step 4.
NO : Go to Step 2.
STEP 2. Check the stoplight switch installation condition.
Q: Is the stoplight switch installed properly?
YES : Go to Step 3.
NO : Repair it and then go to Step 8.
STEP 3. Check the stoplight switch continuity.
(1) Remove the stoplight switch. (Refer to GROUP 35A, Brake
Pedal
(2) Connect an ohmmeter to stoplight switch, and check
whether there is continuity when the plunger of the stoplight
switch is pushed in and when it is released.
Check for continuity between the terminals "a" and "b" of
the stoplight switch.
(3) The stoplight switch is in good condition if there is no
continuity when the plunger is pushed in to a depth of within
4 mm (0.16 inch) from the outer case edge surface, and if
there is continuity when it is released.
Q: Is the stoplight switch continuity incorrect?
YES : Replace it and then go to Step 8.
NO : Go to Step 4.
STEP 4. Using scan tool MB991958, check data list item 33:
Stoplight switch.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to data reading mode for item 33,
Stoplight switch.
• ON with brake pedal stepped down.
• OFF with brake pedal released.
Q: Is the stoplight switch input normal?
YES : This malfunction is intermittent. Refer to GROUP
00E, How to Use Troubleshooting/Inspection Service
Points
− How to Cope With Intermittent Malfunction
NO : Go to Step 5.
AC004299 AC
NO CONTINUITY
CONTINUITY
PLUNGER
a
b
AK303629AB
MB991911
MB991827
MB991824
16-PIN