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, it is useful to determine 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 the malfunction occurred.

Hand-held tester: 

1. Connect hand-held tester, and check STA signal. 

   PREPARATION: 

   1. Connect the hand-held tester 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".

   CHECK: 

   Read the STA signal on the hand-held tester while the starter operates.

   OK 

   IGNITION SWITCH POSITION
   
   

   Ignition Switch Position	ON	START
   STA Signal	OFF	ON

   OK: Check for intermittent problems (See  PRE-CHECK  ). 

   NG: Go to next step. 

2. Check park/neutral position switch (A/T) or clutch start switch (M/T). 

   A/T models: 

   Inspect the park/neutral position switch. 

   PREPARATION: 

   Disconnect the P1 park/neutral position switch connector.

   CHECK: 

   Measure the resistance between each terminal shown below when the shift lever is moved to each range.

   OK: 

   Fig 1: Identifying Park/Neutral Position Switch Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 2: Specified Condition Table

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   M/T models: 

   Inspect the clutch start switch. 

   PREPARATION: 

   Disconnect the C12 clutch start switch connector.

   CHECK: 

   Measure the resistance between terminals when the switch is ON and OFF.

   OK: 

   Fig 3: Disconnecting C12 Clutch Start Switch Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 4: Specified Condition Table

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: Go to step   4 . 

   NG: Go to next step. 

3. Replace park/neutral position switch (A/T) or clutch start switch (M/T). 
4. Connect hand-held tester, and check STA signal. 

   PREPARATION: 

   1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
   2. Turn the ignition switch ON and push the hand-held tester or the OBD II scan tool main switch ON.
   3. Select the item "DIAGNOSIS/ENHANCED OBD II/DATA LIST/ALL/STARTER SIG".

   CHECK: 

   Read the STA signal on the hand-held tester or the OBD II scan tool.

   RESULT: 

   IGNITION SWITCH POSITION
   
   

   Ignition Switch Position	ON	START
   STA Signal	OFF	ON

   OK: System OK. 

   NG: Go to next step. 

5. Check ignition switch. 

   CHECK: 

   Measure the resistance between the connector terminals shown in SPECIFIED CONDITION  .

   OK: 

   SPECIFIED CONDITION
   
   

   Switch Position	Tester Connection	Specified Condition
   LOCK	All Terminals	10 kΩ or higher
   ACC	1-3	Below 1 Ω
   ON	1-2, 1-3, 2-3, 5-6	Below 1 Ω
   START	4-5, 4-6, 5-6, 1-2	Below 1 Ω

   Fig 5: Checking Ignition Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: Replace ignition switch. 

   OK: Go to next step. 

6. Connect hand-held tester, and check STA signal. 

   PREPARATION: 

   1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
   2. Turn the ignition switch ON and push the hand-held tester or the OBD II scan tool main switch ON.
   3. Select the item "DIAGNOSIS/ENHANCED OBD II/DATA LIST/ALL/STARTER SIG".

   CHECK: 

   Read the STA signal on the hand-held tester or the OBD II scan tool.

   RESULT: 

   IGNITION SWITCH POSITION
   
   

   Ignition Switch Position	ON	START
   STA Signal	OFF	ON

   OK: System OK. 

   NG: Repair or replace harness and connector.