Inspection Procedure

HINT:

• This DTC chart is on the premise that the engine is cranked normally. If the engine is not cranked, proceed to the problem symptoms table on PROBLEM SYMPTOMS TABLE .
• 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. READ VALUE OF HAND-HELD TESTER OR OBD II SCAN TOOL (STARTER SIGNAL) 
   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. Select the item "DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG" and read the value displayed the hand-held tester or the OBD II scan tool.

      Result: 

      INSPECTION PROCEDURE
      
      

      Ignition Switch Position	ON	START
      STA Signal	OFF	ON

   1. OK : REPLACE ECM (See  REPLACEMENT  ) 
   2. NG : Go to next step. 
2. INSPECT PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH 
   1. Inspect the park/neutral position switch. (A/T)
      1. Disconnect the P1 park/neutral position switch connector.
      Fig 1: Identifying P1 Park/Neutral Position Switch Connector
      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Measure the resistance between each terminal shown below when the shift lever is moved to each range.

         Standard: 

         STANDARD
         
         

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

      3. Reconnect the park/neutral position switch connector.
   2. Inspect the clutch start switch. (M/T)
      Fig 2: Inspecting Clutch Start Switch

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the C9 clutch start switch connector.
      2. Measure the resistance between terminals when the switch ON and OFF.

         Standard: 

         STANDARD
         
         

         Switch Position	Tester Connection	Specified Condition
         ON (Pushed)	1 - 2	Below 1 Ω
         OFF (free)		10 kΩ Or Higher

      3. Reconnect the clutch start switch connector.
   1. NG : REPLACE PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH (GO TO NEXT STEP 3 AFTER THE REPLACEMENT) 
   2. OK : Go to next step. 
3. READ VALUE OF HAND-HELD TESTER OR OBD II SCAN TOOL (STARTER SIGNAL) 
   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. Select the item "DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG" and read the value displayed the hand-held tester or the OBD II scan tool.

      Result: 

      RESULT
      
      

      Ignition Switch Position	ON	START
      STA Signal	OFF	ON

   1. OK : SYSTEM OK 
   2. NG : Go to next step. 
4. INSPECT IGNITION OR STARTER SWITCH ASSY 
   Fig 3: Inspecting Ignition Or Starter Switch Assy

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Measure the resistance between the connector terminals shown in the chart below.
      RESISTANCE SPECIFICATIONS
      
      

      Switch Position	Tester Connection	Specified Condition
      LOCK	All Terminals	10 kΩ Or Higher
      ACC	1-3	Below 1 Ω
      ON	1-2, 1-3, 2-3, 5-6	Below 1 Ω
      START	4-5, 4-6, 5-6, 1-2	Below 1 Ω

   1. NG : REPLACE IGNITION OR STARTER SWITCH ASSY 
   2. OK : Go to next step. 
5. READ VALUE OF HAND-HELD TESTER OR OBD II SCAN TOOL (STARTER SIGNAL) 
   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. Select the item "DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG" and read the value displayed the hand-held tester or the OBD II scan tool.

      Result: 

      RESULT
      
      

      Ignition Switch Position	ON	START
      STA Signal	OFF	ON

   1. OK : SYSTEM OK 
   2. NG : REPAIR OR REPLACE HARNESS AND CONNECTOR