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DTC P0506 Idle Air Control System-Rpm Lower Than Expected: DTC Detecting Condition
DTC DETECTION CONDITION REFERENCE CHART
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Monitor deviation between target idle speed and actual engine speed
|
- Restriction in intake or exhaust system.
- Carbonustment of the accelerator cable.
- Contact resistance in connectors.
- Faulty ISCA valve.
|
| Enable Conditions |
- Coolant temperature > 74°C(165°F)
- Throttle angle: closed
- Vehicle speed = 0
- 20seconds after engine start.
- 10V < Battery voltage < 16
- No relevant failure
|
| Threshold Value |
- Target idle speed-Engine speed < -100rpm (Engine speed too low)
|
| Diagnostic Time |
|
| Mil On Condition |
|