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 .
• Read freeze frame data using the hand-held tester or the OBDII 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: 

      RESULT REFERENCE
      
      

      Ignition switch position	ON	START
      STA Signal	OFF	ON

   • OK : REPLACE ECM (See  REPLACEMENT  ) 
   • 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 A2 park/neutral position switch connector.
      2. Check for continuity between each terminal shown below when the shift lever is moved to each range.

         Standard 

         Fig 1: Inspecting Park/Neutral Position Switch (A/T)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
         TESTER CONNECTION AND SPECIFIED CONDITION
         
         

         Shift Range	Tester Connection	Specified Condition
         P	1 - 3, 6 - 9	Continuity
         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)
      1. Disconnect the C8 clutch start switch connector.
      2. Check for continuity between terminals when the switch ON and OFF.
         Fig 2: Inspecting Clutch Start Switch (M/T)

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         Standard: 

         SPECIFIED CONDITION
         
         

         Switch Position	Terminal	Specified Condition
         ON (pushed)	1 - 2	Continuity
         OFF (free)		No continuity

      3. Reconnect the clutch start switch connector.
   • NG : REPLACE PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH (GO TO NEXT STEP 3 AFTER THE REPLACEMENT) 
   • 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

   • OK : SYSTEM OK 
   • 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.
   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   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: Inspecting Ignition Or Starter Switch Assy

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   • NG : REPLACE IGNITION OR STARTER SWITCH ASSY (GO TO NEXT STEP 5 AFTER THE REPLACEMENT 
   • 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

   • OK : SYSTEM OK 
   • NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

OBD II scan tool (excluding hand-held tester): 

1. INSPECT ECM 
   1. Turn the ignition switch ON.
   2. Measure the voltage between the terminals of the E4 ECM connector.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      STA (E4-9) - E1 (E4-7)	0V

   3. Measure the voltage between the terminals of the E4 ECM connector when the engine is cranked.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      STA (E4-9) - E1 (E4-7)	5.5 V or more

   Fig 4: Measuring Voltage Between Terminals Of E4 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   • OK : REPLACE ECM (See  REPLACEMENT  ) 
   • 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 A2 park/neutral position switch connector.
      2. Check for continuity between each terminal shown below when the shift lever is moved to each range.
         Fig 5: Identifying A2 Park/Neutral Position Switch Connector Terminal

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         Standard: 

         SPECIFIED CONDITION
         
         

         Shift Range	Terminal No.	Specified Condition
         P	1-3, 6-9	Continuity
         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)
      1. Disconnect the C8 clutch start switch connector.
      2. Check for continuity between terminals when the switch ON and OFF.
         Fig 6: Identifying C8 Clutch Start Switch Connector Terminal

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

         Standard: 

         SPECIFIED CONDITION
         
         

         Switch Position	Between Terminals	Specified Condition
         ON (pushed)	1-2	Continuity
         OFF (free)		No continuity

      3. Reconnect the clutch start switch connector.
   • NG : REPLACE PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH (GO TO NEXT STEP 3 AFTER THE REPLACEMENT) 
   • OK : Go to next step 
3. INSPECT ECM 
   1. Turn the ignition switch ON.
   2. Measure the voltage between the terminals of the E4 ECM connector.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      STA (E4-9)-E1 (E4-7)	0V

   3. Measure the voltage between the terminals of the E4 ECM connector when the engine is cranked.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      STA (E4-9) - E1 (E4-7)	5.5 V or more

   Fig 7: Measuring Voltage Between Terminals Of E4 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   • OK : SYSTEM OK 
   • NG : GO TO NEXT STEP 
4. INSPECT IGNITION OR STARTER SWITCH ASSY 
   1. Disconnect the I10 ignition switch connector.
   2. Check for continuity between the connector terminals shown in the chart below.
      SPECIFIED CONDITION
      
      

      Switch Position	Terminal No.	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

   3. Reconnect the ignition switch connector.
   Fig 8: Identifying I10 Ignition Switch Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   • NG : REPLACE IGNITION OR STARTER SWITCH ASSY (GO TO NEXT STEP 5 AFTER THE REPLACEMENT) 
   • OK : Go to next step 
5. INSPECT ECM 
   1. Turn the ignition switch ON.
   2. Measure the voltage between the terminals of the E4 ECM connector.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      STA (E4-9) - E1 (E4-7)	0 V

   3. Measure the voltage between the terminals of the E4 ECM connector when the engine is cranked.

      Standard: 

      TESTER CONNECTION AND SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      STA (E4-9) - E1 (E4-7)	5.5 V or more

   Fig 9: Measuring Voltage Between Terminals Of E4 ECM Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   • OK : SYSTEM OK 
   • NG : REPAIR OR REPLACE HARNESS OR CONNECTOR