Honda ACCORD HYBRID 2005 Service Manual page 567

DTC P0507: Idle Control System RPM Higher
Than Expected
1. Turn the Ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Start the engine. Hold the engine speed at
3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.
4. Monitor the OBD STATUS for DTC P0507 in the
DTCs MENU w i t h the HDS.
Does the screen indicate FAILED ?
YES—Check for vacuum leaks at these parts, then
go to step 5.
• PCV valve
• PCV hose
• EVAP canister purge valve
• Throttle body
• Intake manifold
• Brake booster hose
NO—If the screen indicates PASSED, intermittent
failure, system is OK at this time. If the screen
indicates EXECUTING, let the engine idle until a
result comes on. If the screen indicates OUT OF
CONDITION, recheck w i t h different load conditions
(electrical, A/C, gear position, etc.), then go to step
3.
5. Turn the ignition switch ON (II).
6. Reset the PCM w i t h the HDS.
7. Do the PCM idle learn procedure (see page 11-340).
8. Start the engine. Hold the engine speed at
3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.
9. Check for Temporary DTCs or DTCs w i t h the HDS.
Are any Temporary DTCs or DTCs indicated?
YES —If DTC P0507 is indicated, check for poor
connections or loose terminals at the throttle body,
the throttle actuator control module, and the PCM,
then go to step 1. If any other Temporary DTCs or
DTCs are indicated, go to the indicated DTCs
troubleshooting.
N O — G o t o step 10.
10. Monitor the OBD STATUS for DTC P0507 in the
DTCs MENU w i t h the HDS.
Does the screen indicate PASSED?
YES—Troubleshooting is complete. •
NO—If the screen indicates FAILED, check for poor
connections or loose terminals at the throttle body,
the throttle actuator control module, and the PCM,
then go to step 1. If the screen indicates
EXECUTING, let the engine idle until a result comes
on. If the screen indicates OUT OF CONDITION,
recheck w i t h different load conditions (electrical,
A/C, gear position, etc.), then go to step 8.
11-327