Inspection Procedure: Notes

HINT:

• Following DTC chart is on the premise that the engine is cranked normally. If the engine is not cranked, proceed to the problem symptoms table 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.

hand held tester: 

1. READ VALUE OF hand held TESTER (STARTER SIGNAL) 
   1. Connect the hand held tester or OBD II scan tool to the DLC3.
   2. Turn the ignition switch ON and push the hand held tester 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.

      Result: 

      IGNITION SWITCH POSITION
      
      

      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 clutch start switch.
      1. Disconnect the C8 clutch start switch connector.
      2. Check for continuity between the terminals when the switch is ON and OFF.

         Standard: 

         Fig 1: Tester Connection Specified Condition Table

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
         Fig 2: Inspecting Park/neutral Position Switch Or Clutch Start Switch

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Reconnect the clutch start switch connector.
   1. NG: REPLACE PARK/NEUTRAL POSITION SWITCH CLUTCH START SWITCH (GO TO NEXT STEP 3 AFTER THE REPLACEMENT) 
   2. OK: Go to next step. 
3. READ VALUE OF hand held TESTER (STARTER SIGNAL) 
   1. Connect the hand held tester to or OBD II scan tool the DLC3.
   2. Turn the ignition switch ON and push the hand held tester main switch ON.
   3. Select the item "DIAGNOSIS/ENHANCED OBD II/DATA LIST/ALL/STARTER SIG" and read its value displayed the hand held tester.

      Result: 

      IGNITION SWITCH POSITION
      
      

      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 
   1. Check for continuity between the connector terminals shown in the chart below.
      CONNECTOR TERMINALS CONTINUITY
      
      

      Switch Position	Tester Connection	Specified Condition
      LOCK	All Terminals	No continuity
      ACC	1-3	Continuity
      ON	1-2, 1-3, 2-3, 5-6	Continuity
      START	1-2, 4-5, 4-6, 5-6	Continuity

      Fig 3: Identifying Ignition Switch Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE IGNITION OR STARTER SWITCH ASSY (GO TO NEXT STEP 5 AFTER THE REPLACEMENT 
   2. OK: Go to next step. 
5. READ VALUE OF hand held TESTER (STARTER SIGNAL) 
   1. Connect the hand held tester or OBD II scan tool to the DLC3.
   2. Turn the ignition switch ON and push the hand held tester main switch ON.
   3. Select the item "DIAGNOSIS/ENHANCED OBD II/DATA LIST/ALL/STARTER SIG" and read its value displayed the hand held tester.

      Result: 

      IGNITION SWITCH POSITION
      
      

      Ignition Switch Position	ON	START
      STA Signal	OFF	ON

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