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 an intelligent tester. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame date 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 INTELLIGENT TESTER (STARTER SIGNAL) 
   1. Connect an intelligent tester to the DLC3.
   2. Turn the ignition switch ON and turn the tester ON.
   3. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / STARTER SIG.
   4. Check the value displayed on the tester when the ignition switch is turned to ON and START positions.

      OK 

      DIAGNOSTIC PROCEDURE
      
      

      Ignition Switch Positions	ON	START
      STARTER SIG	OFF	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 Automatic Transmission models).
      1. Disconnect the B35 PNP switch connector.
      2. Check the resistance when the transmission gear selector lever is moved to each position.

         Standard Resistance 

         STANDARD RESISTANCE SPECIFICATIONS
         
         

         Gear Selector Lever Positions	Tester Connections	Specified Conditions
         P	2 - 6, 4 - 5	Below 1 Ω
         R	1 - 2
         N	2 - 9, 4 - 5
         D	2 - 7
         2	2 - 3
         L	2 - 8

         Fig 1: Identifying PNP Switch Connector Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Reconnect the PNP switch connector.
   2. Inspect the clutch start switch (For Manual Transmission models).
      1. Disconnect the A9 clutch start switch connector.
      2. Check the resistance when the clutch start switch is ON and OFF.

         Standard Resistance 

         STANDARD RESISTANCE SPECIFICATIONS
         
         

         Switch Positions	Tester Connections	Specified Conditions
         ON (pushed)	1 - 2	Below 1 Ω
         OFF (free)	1 - 2	10 kΩ or higher

      3. Reconnect the clutch start switch connector.

   OK:  Go to step  4

   Fig 2: Identifying Clutch Start Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: Go TO NEXT STEP 

3. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 

   Replace the park/neutral position switch assembly (See REMOVAL ).

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

      OK 

      DIAGNOSTIC PROCEDURE
      
      

      Ignition Switch Positions	ON	START
      STARTER SIG	OFF	ON

   OK: SYSTEM OK 

   NG: Go TO NEXT STEP 

5. INSPECT IGNITION OR STARTER SWITCH ASSEMBLY 
   1. Disconnect the A1 ignition switch connector.
   2. Check the resistance.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATIONS
      
      

      Ignition Switch Positions	Tester Connections	Specified Conditions
      LOCK	All Terminals	10 kΩ or higher
      ACC	2 - 3	Below 1 Ω
      ON	2 - 3 - 4, 6 - 7
      START	1 - 2 - 4, 6 - 7 - 8

   3. Reconnect the ignition switch connector.

   OK:  Go to step  7

   Fig 3: Identifying Ignition Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: Go TO NEXT STEP 

6. REPLACE IGNITION OR STARTER SWITCH ASSEMBLY 

   Replace the ignition or starter switch assembly (See REMOVAL ).

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

      OK 

      DIAGNOSTIC PROCEDURE
      
      

      Ignition Switch Positions	ON	START
      STARTER SIG	OFF	ON

   OK: SYSTEM OK 

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR