DTC P0506 Idle Air Control System-Rpm Lower Than Expected: DTC Detecting Condition
DTC DETECTING CONDITION 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 ISC valve.
|
| Enable Conditions |
- Coolant temperature > 74°C (165°F)
- Throttle angle: closed and Vehicle speed = 0 (10 sec. Continuously)
- 20 seconds after engine start.
- Engine load < 1000mg/rev.
- 10V < Battery voltage < 16V
- No relevant failure
|
| Threshold Value |
- Engine Speed - Nominal Idle Speed > 100 RPM (Engine speed too low)
|
| Diagnostic Time |
|