Inspection Procedure

HINT:

• This DTC table 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 intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

1. READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3 with CAN VIM.
   2. Turn the ignition switch ON and turn the intelligent tester ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG.
   4. Confirm the starter signal status when the ignition switch is operated.

      OK 

      IGNITION SWITCH SPECIFICATION
      
      

      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 ASSEMBLY 
   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 

      RESISTANCE SPECIFICATION
      
      

      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: Identifying Park/Neutral Position Switch Connector Terminal
   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
   4. Reconnect the park/neutral position switch connector.

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

   OK: Go to next step 

3. INSPECT IGNITION SWITCH ASSEMBLY 
   Fig 2: Identifying I18 Ignition Switch Connector Terminal

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
   1. Disconnect the I18 ignition switch connector.
   2. Measure the resistance between the connector terminals shown in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION TABLE
      
      

      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

   3. Reconnect the ignition switch connector.

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

   OK: Go to next step 

4. READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3 with CAN VIM.
   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.

      OK 

      IGNITION SWITCH SPECIFICATION
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      START	ON

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step 

5. CHECK WHETHER DTC OUTPUT RECURS (DTC P0617) 
   1. Connect the intelligent tester to the DLC3 with CAN VIM.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Clear the DTCs.
   4. Drive the vehicle more than 25 mph (40 km/h) for 20 seconds or more.
   5. Read the DTCs.

      Result 

      RESULT REFERENCE
      
      

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

   B: CHECK FOR INTERMITTENT PROBLEMS 

   A: REPLACE ECM