July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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 and ECT / Trouble Codes.

Read 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 5

A: Go to next step

CHECK PCV HOSE CONNECTIONS
1. Check the PCV hose connections.
  OK
  
  PCV hose is connected correctly and is not damaged.
NG → See step 6

OK: Go to next step
CHECK AIR INDUCTION SYSTEM
1. Check the air induction system for vacuum leakage. Refer to ON-VEHICLE INSPECTION - Step 4 .
  OK
  
  No leakage from air induction system.
NG → REPAIR OR REPLACE AIR INDUCTION SYSTEM

OK: Go to next step
CHECK THROTTLE VALVE
1. Check the throttle valve condition.
  OK
  
  Throttle valve is not contaminated with foreign objects and moves smoothly.
NG → See step 7

OK → See step 8
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART
REPAIR OR REPLACE PCV HOSE. Refer to REMOVAL
REPLACE THROTTLE BODY ASSEMBLY. Refer to REMOVAL
REPLACE ECM. Refer to REMOVAL