P0505

Test 1:

Tests 2 - 6:

Tests 7 - 11:

Tests 12 - 15:

Tests 16 - 19:

Test 20:

SYMPTOM
PO5O5-IDLE AIR CONTROL MOTOR CIRCUITS

WHEN MONITORED
At key ON and battery voltage greater than 11.5 volts.

SET CONDITION
The PCM senses a shorted to ground or battery voltage on any of the four Idle Air Control (IAC) driver circuits for 100 msec while the IAC motor is active.

POSSIBLE CAUSES
- DTC not equal to freeze frame DTC
- IAC motor circuit harness intermittent defect
- IAC # 4 driver circuit open
- IAC # 4 driver circuit shorted to ground
- 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 # 1 driver circuit shorted to ground
- IAC # 2 driver circuit shorted to ground
- IAC # 3 driver circuit shorted to ground
- IAC # 1 driver circuit open
- IAC # 2 driver circuit open
- IAC # 3 driver circuit open
- IAC motor not functioning
- PCM (IAC driver # 1)
- PCM (IAC driver # 2)
- PCM (IAC driver # 3)
- PCM (IAC driver # 4)