Inspection Procedure

HINT:

• The following troubleshooting flow chart is based on the premise that the engine is cranked normally. If the engine will not crank, proceed to PROBLEM SYMPTOMS TABLE .
• Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are 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 INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
   2. Turn the ignition switch ON and turn the intelligent tester ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Confirm the starter signal status when the ignition switch is operated.

      OK 

      STARTER SIGNAL
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      Start	ON

   OK: Go to step   5 

   NG: GO TO NEXT STEP 

2. INSPECT PARK/NEUTRAL POSITION SWITCH 
   1. Move the shift lever to the P or N position.
   2. Disconnect the P1 Park/Neutral Position (PNP) switch connector.
   3. Measure the resistance of the PNP switch.

      Standard resistance 

      PARK/NEUTRAL POSITION SWITCH
      
      

      Shift Position	Tester Connection	Specified Condition
      P or N	4 - 5	Below 1 Ω

      Fig 1: Inspecting Park/Neutral Position Switch

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   OK: GO TO NEXT STEP 

3. INSPECT IGNITION SWITCH ASSEMBLY 
   1. Disconnect the I18 ignition switch connector.
   2. Measure the resistance between the connector terminals shown in TIGNITION SWITCH ASSEMBLY  .

      Standard resistance 

      TIGNITION SWITCH ASSEMBLY
      
      

      Switch Position	Tester Connection	Specified Condition
      START	7 - 8	Below 1 Ω

      Fig 2: Inspecting Ignition Switch Assembly

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPLACE IGNITION SWITCH ASSEMBLY (GO TO STEP   5  AFTER THE REPLACEMENT) 

   OK: GO TO NEXT STEP 

4. READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. On the intelligent tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
   4. Read the values.

      Result 

      STARTER SIGNAL
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      START	ON

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: GO TO NEXT STEP 

5. CHECK IF DTC OUTPUT REOCCURS 
   1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
   2. Turn the ignition switch ON and turn the 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 40 km/h (25 mph) for 20 seconds or more.
   5. Check if DTC output reoccurs.

      Result 

      DTC OUTPUT REOCCURS
      
      

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

   B: CHECK FOR INTERMITTENT PROBLEMS 

   A: REPLACE ECM