P0505

Tests 1 - 2:

Tests 3 - 6:

Tests 7 - 8:

SYMPTOM
P0505-IDLE AIR CONTROL MOTOR CIRCUITS

WHEN MONITORED
Engine running. Battery voltage greater than 10 volts. IAC motor operating.

SET CONDITION
The PCM senses a short to ground or battery voltage on any of the four Idle Air Control (IAC) driver circuits for 0.050 seconds while the IAC motor is active.

POSSIBLE CAUSES
- Intermittent Condition
- IAC #1 Driver Circuit Shorted To #2, #3, OR #4
- IAC #2 Driver Circuit Shorted To #3 OR #4
- IAC #3 Driver Circuit Shorted To #4
- IAC Driver Circuit Shorted To Voltage
- IAC Driver Circuit Shorted To Ground
- IAC Motor Operation
- IAC Motor