Inspection Procedure

HINT:

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, freeze frame data can help determine if the vehicle was running or stopped, 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.

Hand-held tester: 

1. READ VALUE OF HAND-HELD TESTER (STARTER SIGNAL) 
   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch to ON and turn the hand-held tester ON.
   3. On the hand-held tester, select the item: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG. Read the values.

   Result: 

   DLC3 DIAGNOSIS RESULT
   
   

   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 ASSY (See  DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)  ) 

   NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSY (See  REPLACEMENT  ) (GO TO 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 the DLC3.
   2. Turn the ignition switch to ON and turn the hand-held tester ON.
   3. On the hand-held tester, select the item: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG. Read the values.

   Result: 

   DLC3 DIAGNOSIS RESULT
   
   

   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.
      Fig 1: Identifying Starter Switch Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

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

   NG: REPLACE IGNITION OR STARTER SWITCH ASSY (GO TO 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 to the DLC3.
   2. Turn the ignition switch to ON and turn the hand-held tester ON.
   3. On the hand-held tester, select the item: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / STARTER SIG. Read the values.

   Result: 

   DLC3 DIAGNOSIS RESULT
   
   

   Ignition Switch Position	ON	START
   STA Signal	OFF	ON

   OK: SYSTEM OK 

   NG: REPAIR OR REPLACE HARNESS AND CONNECTOR