Montero Sport XLS 4WD V6-3.5L SOHC (2002)
Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
Oscilloscope Check
IDLE AIR CONTROL MOTOR (STEPPER MOTOR)
Required special tools:
-
MD998463: Test Harness <3.0L Engine>
-
MB991709: Test Harness Set <3.5L Engine>
Measurement Method <3.0L Engine>
1. Disconnect the idle air control motor connector, and connect the test harness special tool (MD998463) in between.
2. Connect the oscilloscope probe to the idle air control motor connector terminal 1 (red clip of special tool), terminal 3 (blue dip), terminal 4 (black
clip) and terminal 6 (yellow clip) respectively.
Measurement Method <3.5L Engine>
1. Disconnect the idle air control motor connector, and connect the test harness special tool (MB991709) in between. (All terminals should be
connected.)
2. Connect the oscilloscope probe to the idle air control motor connector terminal 1, terminal 3, terminal 4 and terminal 6 respectively.
Alternate method (Test harness not available)
1. Connect the oscilloscope probe to PCM terminals 14, 15, 28 and 29.
