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  on .
• Read freeze frame data using the intelligent tester. Freeze frame data records 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 OF INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK: Go to Next Step 

      IGNITION SWITCH POSITION
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      START	ON

   OK: CHECK FOR INTERMITTENT PROBLEMS 

   NG: Go to Next Step 

2. INSPECT PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH 
   1. Inspect the Park/Neutral Position (PNP) switch (for A/T models).
      1. Disconnect the A3 PNP switch connector.
      2. Measure the resistance when the transmission gear selector lever is moved to each position.

         Standard resistance 

         TESTER CONNECTION - SPECIFIED CONDITIONS
         
         

         Gear Selector Lever Position	Tester Connection	Specified Condition
         P	1 - 3, 6 - 9	Below 1 Ω
         N	3 - 5, 6 - 9	Below 1 Ω

         Fig 1: Measuring Resistance Transmission Gear Selector Lever Moved To Position

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Inspect the clutch start switch (for M/T models).
      1. Disconnect the C5 clutch start switch connector.
      2. Measure the resistance when the clutch start switch is ON and OFF.

         Standard resistance 

         TESTER CONNECTION - SPECIFIED CONDITIONS
         
         

         Ignition Switch Position	Tester Connection	Specified Condition
         ON (pushed)	1 - 2	Below 1 Ω
         OFF (free)	1 - 2	10 kΩ or higher

         Fig 2: Measuring Resistance Clutch Start Switch

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPLACE PARK/NEUTRAL POSITION SWITCH OR CLUTCH START SWITCH (GO TO NEXT STEP AFTER REPLACEMENT) 

   OK: Go to Next Step 

3. READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

      OK 

      IGNITION SWITCH POSITION
      
      

      Ignition Switch Position	STARTER SIG
      ON	OFF
      START	ON

   OK: SYSTEM OK 

   NG: Go to Next Step 

4. INSPECT IGNITION SWITCH ASSEMBLY 
   1. Disconnect the I10 ignition switch connector.
   2. Measure the resistance of the ignition switch.
      TESTER CONNECTION - SPECIFIED CONDITIONS
      
      

      Switch Position	Tester Connection	Specified Condition
      LOCK	All Terminals	10 kΩ or higher
      START	ST2 (4) - AM2 (5)	Below 1 Ω

      Fig 3: Measuring Resistance Of Ignition Switch

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: REPLACE IGNITION SWITCH ASSEMBLY (GO TO NEXT STEP AFTER REPLACEMENT) 

   NG: Go to Next Step 

5. READ VALUE OF INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Check the value displayed on the tester when the ignition switch is turned to the ON and START positions.

   OK 

   IGNITION SWITCH POSITION
   
   

   Ignition Switch Position	STARTER SIG
   ON	OFF
   START	ON

   OK: SYSTEM OK 

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR