P0509

Tests 1 - 3:

Tests 4 - 7:

SYMPTOM
P0509-IAC VALVE SENSE CIRCUIT HIGH

WHEN MONITORED
Engine running. Battery voltage greater than 10 volts.

SET CONDITION
The IAC sense circuit is greater than 980 mA. One Trip Fault.

POSSIBLE CAUSES
- Intermittent condition
- IAC motor
- IAC motor sense circuit shorted to voltage
- IAC motor driver circuit shorted to voltage
- IAC motor sense circuit shorted to IAC motor driver circuit
- PCM