Vacuum Leak Found (Idle Air Control Motor Fully Seated)

Name of Code:
Vacuum Leak Found (Idle Air Control (IAC) Motor Fully Seated)

When Monitored:
With the engine running.

Set Condition:
The MAP sensor signal does not correlate to the TP sensor signal.

Theory of Operation:
The powertrain control module (PCM) monitors the MAP signal as well as the TP sensor signal. The vacuum reading decreases as throttle opening increases proportionally. The PCM compares the two values to verify the relation between the two signals.

Possible Causes:
- Vacuum leak
- Faulty MAP sensor
- Faulty TP sensor
- Powertrain control module failure
- Connector terminals
- Connector wires