DTC P0507: Idle Control System RPM Higher Than Expected
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle for at least 20 seconds.
- Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES -Go to step 5.
NO -If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS indicates EXECUTING, keep idling until a result comes on. If the HDS indicates OUT OF CONDITION, recheck with different load conditions (electrical, A/C, gear position, etc.), then go to step 3.
- Check for vacuum leaks at these parts:
- PCV valve
- PCV hose
- EVAP canister purge valve
- Throttle body
- Intake manifold
- Brake booster hose
- Brake booster
Are there any leaks?
YES -Repair or replace the leaking part(s), then go to step 6.
NO -Go to step 6.
- Turn the ignition switch to ON (II).
- Reset the PCM with the HDS.
- Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
- Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle for at least 20 seconds.
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0507 indicated?
YES -Check for poor connections or loose terminals at the throttle body and the PCM, then go to step 1.
NO -Go to step 11.
- Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES -Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 10, go to the indicated DTC'S TROUBLESHOOTING .
NO -If the HDS indicates FAILED, check for poor connections or loose terminals at the throttle body and the PCM, then go to step 1. If the HDS indicates EXECUTING, keep idling until a result comes on. If the HDS indicates OUT OF CONDITION, recheck with different load conditions (turn on the headlights, blower motor, or A/C; change the gear position, etc.), then go to step 9.