P0507

DTC P0507

CIRCUIT DESCRIPTION
The engine control module (ECM) adjusts the fuel delivery in order to control crankshaft speed at idle. If the ECM detects that the engine idle speed is higher than desired within a calibrated time, this DTC will set.

Condition for Running the DTC
- DTCs P0116, P0117, P0118, P0335, P0336, P0500, P0506, P0602, P0642, P0643 and P1125 are not set.

AND following conditions are met longer than 3 seconds.
- The ignition switch is ON.
- The engine coolant temperature (ECT) is more than149 °F (65 °C).
- The fuel injection quantity does not vary more than 10 cu.mm.
- The desired idle speed does not vary more than 10 RPM.
- The engine speed does not vary more than 20 RPM.
- The vehicle speed is less than 1 MPH (1.6 km/h).

Condition for Setting the DTC
- The ECM detects that the actual idle speed is 100 RPM higher than the desired idle speed for 10 seconds.

P0507

Action Taken When the DTC Sets
- The ECM illuminates the malfunction indicator lamp (MIL) on the second consecutive driving cycle when the diagnostic runs and fails.
- The ECM records the operating conditions at the time the diagnostic fails. The ECM stores this information in the Freeze Frame/Failure Records on the second consecutive driving cycle when the diagnostic runs and fails.

Condition for Clearing the MIL/DTC
- The ECM turns OFF the MIL after 3 consecutive driving cycles when the diagnostic runs and does not fail.
- A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic after the ECM turns OFF the MIL.
- Clear the MIL and the DTC with a scan tool.

Test Description
The number below refers to the step number on the diagnostic table.
3. This test determines if the engine can achieve the commanded RPM.

Step 7: