Eclipse V6-3.0L SOHC (2003)
Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
Oscilloscope Check
IDLE AIR CONTROL MOTOR (STEPPER MOTOR)
Required Special Tool:
-
MB991709: Test Harness
Measurement Method
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 ECM <M/T> or PCM <A/T> terminals 14, 15, 28 and 29.
Standard Wave Pattern
Wave Pattern Observation Points
1. Check that the standard wave pattern appears when the idle air control motor is operating.