P0506

Test 1 - 5:

SYMPTOM
P0506-IDLE SPEED LOW PERFORMANCE

WHEN MONITORED
Engine Running. During an idle condition.

SET CONDITION
If the engine rpm does not come within a calibratable low limit of the target idle speed, a failure timer will increment. When the appropriate failure timer reaches its maximum threshold without sign of rpm trending towards control, a soft fail is generated. When a calibratable number of the soft fails is reached, a I trip fault is set. When two 1 trip faults occur in a row, a the DTC is set and the MIL illuminates.

POSSIBLE CAUSES
- Good Trip Equal To Zero
- IAC Motor Passages
- Vacuum Leaks
- Air Induction System
- Throttle Body And Throttle Linkage