FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P0508

Tests 1 - 2:




Tests 3 - 7:




Test 8:




SYMPTOM
P0508- IAC MOTOR SENSE CIRCUIT LOW

WHEN MONITORED
Engine running. The battery voltage greater than 10 volts.

SET CONDITION
IAC Valve Sense current is less than 146.33 mA.

POSSIBLE CAUSES
- Intermittent condition
- IAC motor
- IAC motor driver circuit shorted to ground
- IAC motor sense circuit open
- IAC motor sense circuit shorted to ground
- IAC motor driver circuit open
- Powertrain control module