Montero Sport LS 2WD V6-3.0L SOHC (1998)
Idle Speed/Throttle Actuator - Electronic: Component Tests and General Diagnostics
Oscilloscope Test
IDLE AIR CONTROL MOTOR (STEPPER MOTOR) INSPECTION PROCEDURE USING AN ANALYZER
Required Special Tool: MD998463 Test Harness
MEASUREMENT METHOD
1. Disconnect the idle air control motor connector and connect the test harness special tool (MD998463) in between.
2. Connect the analyzer special patterns pickup to the idle air control motor connector terminal 1 (red clip of special tool), terminal 3 (blue clip),
terminal 4 (black clip) and terminal 6 (yellow clip), respectively.
ALTERNATE METHOD (Test harness not available)
1. Connect the analyzer special patterns pickup to ECM terminals 14, 15, 28 and 29.
OBSERVATION CONDITIONS
STANDARD WAVE PATTERN
Wave Pattern Observation Points
1. Check that the standard wave pattern appears when the idle air control motor is operating.
