DTC P0506: Notes
DTC P0506 DETECTION & CONDITION POSSIBLE CAUSES
| DTC P0506 |
Idle air control system RPM lower than expected |
| DETECTION CONDITION |
- The PCM compares the actual idle speed with the target idle speed when the engine is running. If the actual idle speed is lower than targeted by 100 rpm, the PCM determines that the idle air control system RPM is lower than expected.
Diagnostic support note
- This is a continuous monitor (CCM).
- The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
- PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Drive-by-wire control system malfunction
- A/C cut-off control malfunction
- Generator control system malfunction
- Intake-air line clogged
- Air cleaner clogged
- Throttle body clogged
- Purge solenoid valve malfunction
- IAT sensor malfunction
- ECT sensor malfunction
- APP sensor malfunction
- Eccentric shaft position sensor malfunction
- Insufficient compression
- Engine oil malfunction
- Oil pressure decrease
- Metering oil pump malfunction
- Metering oil pump control malfunction
- Engine malfunction
- Fuel line pressure malfunction
- PCM malfunction
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