P0508

Test 1 - Test 2:

Test 3 - Test 6:

Test 7:

SYMPTOM
P0508-IAC VALVE SENSE CIRCUIT LOW

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

SET CONDITION
The IAC sense circuit is less than 175 mA. One Trip Fault.

POSSIBLE CAUSES
- IAC motor operation
- IAC motor
- (K39) IAC motor control circuit shorted to ground
- (K60) IAC signal circuit open
- (K60) IAC signal circuit shorted to ground
- (K39) IAC motor control circuit open
- PCM