Inspection Procedure

HINT:

• The following troubleshooting flowchart is based on the premise that the engine is cranked normally. If the engine will not crank, proceed to the PROBLEM SYMPTOMS TABLE  .
• Read freeze frame data using a Techstream. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, 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 USING TECHSTREAM (STARTER SIGNAL) 
   1. Connect a Techstream to the DLC3.
   2. Turn the ignition switch ON.
   3. Turn the tester ON.
   4. Select the following menu items: Powertrain / Engine and EOT / Data List / All Data / Starter Signal.
   5. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      IGNITION SWITCH POSITIONS REFERENCE
      
      

      Ignition Switch Positions	Starter Signal
      ON	OFF
      START	ON

   NG: Go to step 2 

   OK: CHECK FOR INTERMITTENT PROBLEMS  (See CHECK FOR INTERMITTENT PROBLEMS  )

2. READ VALUE USING TECHSTREAM (STARTER SIGNAL) 
   1. Disconnect the B35 park/neutral position switch or the A9 clutch start switch and the E11 clutch start cancel switch connectors.
   Fig 1: Identifying B35 Park/Neutral Position Switch Or A9 Clutch Start Switch Connector
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Connect a Techstream to the DLC3.
   3. Turn the ignition switch ON.
   4. Turn the tester ON.
   5. Select the following menu items: Powertrain / Engine and ECT / Data List / All Data / Starter Signal.
   6. Check the value displayed on the tester when the ignition switch is turned to the ON.

      Result 

      RESULT REFERENCE
      
      

      Starter Signal	Proceed To
      Remains ON	A
      OFF (M/T models)	B
      OFF (A/T models)	C

   7. Reconnect the park/neutral position switch or the clutch start switch and the clutch start cancel switch connectors.

   B:Go to step   4

   C:Go to step   9

   A: Go to Next Step 

3. INSPECT ECM (STA TERMINAL VOLTAGE) 
   1. Disconnect the B35 park/neutral position switch or the A9 clutch start switch and the E11 clutch start cancel switch connectors.
   2. Disconnect the B3 ECM connector.
   Fig 2: Identifying B3 ECM Connector
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Turn the ignition switch ON.
   4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      STANDARD VOLTAGE
      
      

      Tester Connection	Switch Condition	Specified Condition	Proceed To
      STA (B3-11) - Body ground	Ignition switch ON	11 to 14 V	A
      STA (B3-11) - Body ground	Ignition switch ON	Below 1.5 V	B

      HINT:

      For manual transmission models:

      If the result is A, repair of replace the wire harness between the ECM and the STA relay, the ECM and the clutch start switch and also the ECM and the clutch start cancel switch.

   5. Reconnect the park/neutral position switch or the clutch start switch and the clutch start cancel switch connectors.
   6. Reconnect the ECM connector.

   B: REPLACE ECM  (See REMOVAL  )

   A: REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - STA RELAY - PNP SWITCH OR CLUTCH START SWITCH) 

4. INSPECT CLUTCH START SWITCH 
   1. Disconnect the A9 clutch start switch connectors.
   Fig 3: Identifying A9 Clutch Start Switch Connectors
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE
      
      

      Tester Connection	Switch Condition	Specified Condition
      1 -2	OFF (free)	10 kΩ or higher

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed To
      Outside standard range	A
      Within standard range	B

   3. Reconnect the clutch start switch connector.

   B: Go to step  6

   A: Go to Next Step 

5. REPLACE CLUTCH START SWITCH 
   1. Replace the clutch start switch.
6. INSPECT CLUTCH START CANCEL SWITCH 
   1. Inspect the clutch start cancel switch (See INSPECTION ).

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed To
      Outside standard range	A
      Within standard range	B

   B: Go to step  8

   A: Go to Next Step 

7. REPLACE CLUTCH START CANCEL SWITCH 
   1. Replace the clutch start cancel switch.
8. INSPECT IGNITION SWITCH 
   1. Disconnect the A1 ignition switch connectors.
   Fig 4: Identifying A9 Clutch Start Switch Connectors
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE
      
      

      Tester Connection	Switch Condition	Specified Condition
      1 - 2,1 - 7	Ignition switch ON	10 kΩ or higher

      HINT:

      If the result is OK, repair or replace the wire harness between the ignition switch and the clutch start switch and also the ignition switch and the clutch start cancel switch.

   3. Reconnect the ignition switch connector.

   NG: REPLACE IGNITION SWITCH  (See REMOVAL )

   OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - CLUTCH START SWITCH) 

9. INSPECT PARK/NEUTRAL POSITION SWITCH 
   1. Disconnect the B35 Park/Neutral Position (PNP) switch connectors.
   Fig 5: Identifying B35 Park/Neutral Position (PNP) Switch Connectors
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE
      
      

      Tester Connection	Switch Condition	Specified Condition
      4-5	Shift lever position except P and N	10 kΩ or higher
      2-5	All shift lever positions	10 kΩ or higher

      Result 

      RESULT CHART
      
      

      Result	Proceed To
      Short between 4 and 5	A
      Short between 2 and 5	B
      Within standard range	C

   3. Reconnect the PNP switch connector.

   B: REPLACE PARK/NEUTRAL POSITION SWITCH  (See REMOVAL )

   C: Go to step  11

   A: Go to Next Step 

10. REPLACE PARK/NEUTRAL POSITION SWITCH 
    1. Replace the park/neutral position switch (See REMOVAL ).
11. INSPECT IGNITION SWITCH 
    1. Disconnect the A1 ignition switch connectors.
    Fig 6: Identifying A9 Clutch Start Switch Connectors
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

       Standard Resistance 

       STANDARD RESISTANCE
       
       

       Tester Connection	Switch Condition	Specified Condition
       1 - 2,1 - 7	Ignition switch ON	10 kΩ or higher

    3. Reconnect the ignition switch connector.

    NG: REPLACE IGNITION SWITCH  (See REMOVAL )

    OK: Go to Next Step 

12. INSPECT ECM (NSW TERMINAL VOLTAGE) 
    1. Disconnect the B2 ECM connector.
    Fig 7: Identifying B2 ECM Connector
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

       Standard Resistance 

       STANDARD RESISTANCE
       
       

       Tester Connection	Switch Condition	Specified Condition	Proceed To
       NSW (B2-8) - Body ground	Ignition switch ON	11 to 14 V	A
       NSW (B2-8) - Body ground	Ignition switch ON	Below 1.5 V	B

    3. Reconnect the ECM connector.

    B: REPLACE ECM  (See REMOVAL  )

    A: REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - PNP SWITCH - ECM)