DTC P0507: Idle Control System Rpm - Higher Than Expected: Notes

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DTC detecting condition:

Detected when two consecutive driving cycles with fault occur.

Trouble symptom:

Engine keeps running at higher speed than specified idle speed.

NOTE: After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .

CHECK DTC .
1. Turn the ignition switch to ON.
2. Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is DTC other than P0507 displayed? (Current code)

Yes : Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DIAGNOSTIC TROUBLE CODE (DTC) .

No : Go to 2.
CHECK AIR INTAKE SYSTEM .
1. Start and idle the engine.
2. Check the following items.
  - Loose installation of intake manifold and throttle body
  - Cracks of intake manifold gasket and throttle body gasket
  - Disconnection of vacuum hoses
Is there any fault in air intake system?

Yes : Repair air suction and leaks.

No : Go to 3.
CHECK ELECTRONIC THROTTLE CONTROL .
1. Turn the ignition switch to OFF.
2. Remove the electronic throttle control. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>THROTTLE BODY>REMOVAL .
3. Check the electronic throttle control.
  Are foreign matter found inside electronic throttle control?
  
  Yes : Remove foreign matter from electronic throttle control.
  
  No : Perform the diagnosis for DTC P2101. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P2101 THROTTLE ACTUATOR "A" CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE .