DTC P0505: Idle Control System Malfunction: Procedure
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read DTCs.
Result
Display (DTC output) Proceed to P0505 A P0505 and other DTCs B HINT:
If any DTCs other than P0505 are output, troubleshoot those DTCs first.
B → See step 5
A: Go to next step
- CHECK VENTILATION HOSE (HOSE CONNECTIONS)
OK
Ventilation hose is connected correctly and is not damaged.
NG → See step 6
OK: Go to next step
- CHECK AIR INDUCTION SYSTEM
- Check the air induction system for vacuum leakage.
OK
No leakage from air induction system.
NG → REPAIR OR REPLACE AIR INDUCTION SYSTEM
OK: Go to next step
- Check the air induction system for vacuum leakage.
- CHECK THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE)
- Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body. And check that the throttle valve moves smoothly.
OK
Throttle valve is not contaminated with foreign objects and moves smoothly.
NG → See step 7
OK → See step 8
- Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body. And check that the throttle valve moves smoothly.
- GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART
- REPAIR OR REPLACE VENTILATION HOSE. Refer to ON-VEHICLE INSPECTION
- REPLACE THROTTLE BODY. Refer to REMOVAL
- REPLACE ECM. Refer to REMOVAL