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

WARNING: This page is about a different variant/trim than selected.

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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 2.0 (EXCEPT FOR HEV))>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .

CHECK DTC .
Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .

Is DTC other than P0507 displayed? (Current malfunction)

Yes: Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.0 (EXCEPT FOR HEV))>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 (EXCEPT FOR HEV))>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 of DTC P2101. Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.0 (EXCEPT FOR HEV))>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P2101: THROTTLE ACTUATOR "A" CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE .