Stratus Coupe V6-3.0L VIN H (2001)
Idle Air Control (IAC) Motor: Testing and Inspection
Oscilloscope Test
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 or PCM terminals 14,15.28 and 29.
Standard Wave Pattern
Wave Pattern Observation Points