Inspection Procedure

HINT:

Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.

1. Are there any other codes (besides P0505) being output? 

   PREPARATION: 

   1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
   2. Turn the ignition switch ON and push the hand-held tester or the OBD II scan tool main switch ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II DTC INFO / CURRENT CODES.

   CHECK: 

   Read the DTC using the hand-held tester or the OBD II scan tool.

   RESULT: 

   Fig 1: Display (DTC Output) Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   If any other codes besides P0505 are output, perform the troubleshooting for those DTCs first.

   1. YES: Go to relevant DTC chart (See  DIAGNOSTIC TROUBLE CODE CHART   ). 
   2. NO: Go to next step. 
2. Check connection of PCV piping. 
   1. NG: Repair or replace PCV piping. 
   2. OK: Go to next step. 
3. Check air induction system (See  SFI SYSTEM  ). 

   CHECK: 

   Check for vacuum leaks in air induction system.

   1. NG: Repair or replace air induction system. 
   2. OK: Check electric throttle control system (See  THROTTLE BODY  ).