DTC | Diagnostic item |
P0506 P0507 | Idle RPM Lower Than Expected Idle RPM Higher Than Expected |
The Idle Speed Control (ISC) actuator has two coils that are driven by separate ECM driver stages. Depending on the pulse duty factor, the equilibrium of the magnetic forces of the two coils will result in different directions for the magnetic forces of the two coils which will result in different positions for the actuator. In parallel to the throttle valve, a bypass hose line is arranged where the ISC actuator is inserted.
The ISC actuator passes idle air at a rate above 4.1 g/s. [for P0506] or 1.7g/s [for P0507].
Engine speed deviation is below 200 RPM.
Vehicle speed is zero.
Engine coolant temperature is above 167°F (75°C).
