DTC P0505: Idle Control System Malfunction: Procedure

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505)

Read the DTCs.

RESULT

Result	Proceed to
P0505 is output	A
P0505 and other DTCs are output	B

HINT:

If any DTCs other than P0505 are output, troubleshoot those DTCs first.

B → See step 7

A: Go to next step

CHECK PCV HOSE CONNECTIONS. Refer to PROCEDURE - Step 3
NG → REPAIR OR REPLACE PCV HOSE

OK: Go to next step
CHECK INTAKE SYSTEM. Refer to PROCEDURE - Step 2
NG → REPAIR OR REPLACE INTAKE SYSTEM

OK: Go to next step
INSPECT THROTTLE VALVE
1. Check the throttle valve condition.
NG → See step 8

OK: Go to next step
REPLACE ECM
1. Replace the ECM. Refer to REMOVAL .
NEXT: Go to next step

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

NOTE:

In this operation, the engine must be cold (the same level as the engine coolant temperature recorded in the freeze frame data).

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Clear the DTCs. Refer to DTC CHECK / CLEAR .
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON and turn the Techstream on.
Start the engine and warm it up.
Refer to CONFIRMATION DRIVING PATTERN .
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
Input the DTC: P0505.

Check the DTC judgment result.

Techstream Display	Description
NORMAL	DTC judgment completed System normal
ABNORMAL	DTC judgment completed System abnormal
INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions
UNKNOWN	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit

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