Inspection Procedure

HINT:

• This DTC chart is on the premise that the engine is cranked normally. If the engine is not cranked, proceed to PROBLEM SYMPTOMS TABLE  .
• Read freeze frame data using the hand-held tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

1. READ VALUE OF HAND-HELD TESTER (STARTER SIGNAL) 
   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch to ON and turn the hand-held tester ON.
   3. On the hand-held tester, select the item: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
   4. Read the values.

      Result: 

      STARTER SIGNAL
      
      

      Ignition Switch Position	ON	START
      STARTER SIG	OFF	ON

   OK: Go to step   5 

   NG: Go to next step. 

2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSY 
   1. Disconnect the P1 park/neutral position switch connector.
   2. Check the resistance between each terminal shown in PARK/NEUTRAL POSITION SWITCH ASSY  when the shift lever is moved to each position.

      Standard: 

      PARK/NEUTRAL POSITION SWITCH ASSY
      
      

      Shift Position	Tester Connection	Specified Condition
      P	2 - 6, 4 - 5	Below 1 Ω
      R	1 - 2	Below 1 Ω
      N	2 - 9, 4 - 5	Below 1 Ω
      D,4	2 - 7	Below 1 Ω
      3	2 - 4	Below 1 Ω
      2, L	2 - 8	Below 1 Ω

      Fig 1: Inspecting Park/Neutral Position Switch Assy

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Reconnect the park/neutral position switch connector.

   NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSY (See  PARK/NEUTRAL POSITION SWITCH ASSY  ) (GO TO NEXT STEP   5  AFTER THE REPLACEMENT) 

   OK: Go to next step. 

3. INSPECT IGNITION OR STARTER SWITCH ASSY 
   1. Disconnect the I18 ignition switch connector.
   2. Measure the resistance between the connector terminals shown in IGNITION OR STARTER SWITCH ASSY  .

      Standard: 

      IGNITION OR STARTER SWITCH ASSY
      
      

      Switch Position	Tester Connection	Specified Condition
      LOCK	All Terminals	10 kΩ or higher
      ACC	2-3	Below 1 Ω
      ON	2-3, 2-4, 6-7	Below 1 Ω
      START	1-2, 2-4, 6-7, 6-8	Below 1 Ω

      Fig 2: Inspecting Ignition Or Starter Switch Assy

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Reconnect the ignition switch connector.

   NG: REPLACE IGNITION OR STARTER SWITCH ASSY (GO TO STEP   5  AFTER THE REPLACEMENT) 

   OK: Go to next step. 

4. READ VALUE OF HAND-HELD TESTER (STARTER SIGNAL) 
   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch to ON and turn the hand-held tester ON.
   3. On the hand-held tester, select the item: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
   4. Read the values.

      Result: 

      STARTER SIGNAL
      
      

      Ignition Switch Position	ON	START
      STARTER SIG	OFF	ON

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step. 

5. CHECK IF DTC OUTPUT REOCCURS 
   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch to ON and turn the hand-held tester ON.
   3. To erase DTC, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CLEAR CODE; and press YES.
   4. Drive the vehicle more than 25 mph (40 km/h) for 20 seconds or more.
   5. Check DTC reoccur.

      Result: 

      IF DTC OUTPUT REOCCURS
      
      

      Display (DTC output)	Proceed To
      P0617	A
      No output	B

   B: CHECK FOR INTERMITTENT PROBLEMS 

   A: REPLACE ECM (See  REPLACEMENT  )