Inspection Procedure

HINT:

When using the hand-held tester or the OBD II scan tool, start the inspection from step 1 and when of not using the hand-held tester or the OBD II scan tool, start from step 2.

1. Connect hand-held tester or OBD II scan tool, and check park/neutral position switch signal. 

   PREPARATION: 

   1. Warm up the engine.
   2. Turn the ignition switch OFF.
   3. Connect the hand-held tester or the OBD II scan tool to the DLC3.
   4. Turn the ignition switch ON.
   5. Turn ON the hand-held tester or the OBD II scan tool.
   6. When using the hand-held tester:

      Enter the following menus: DIAGNOSIS/ENHANCED OBD II/DATA LIST

   7. According to the display on the tester, read the "DATA LIST".

   CHECK: 

   Read the park/neutral position switch signal.

   OK: 

   Fig 1: Item Display & Normal Condition Diagnostic Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. OK: Check for intermittent problem (see  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
   2. NG: Go To Next Step 
2. Check park/neutral position switch. 

   PREPARATION: 

   Remove the park/neutral position switch.

   CHECK: 

   Measure the resistance between the switch terminals when operating the shift lever, as shown in the table below.

   OK: 

   Fig 2: Terminal Shift Position & Specific Condition Table

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 3: Identifying Park Position Switch Terminals (Component Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: Replace park/neutral position switch (see  PARK/NEUTRAL POSITION SWITCH  ). 
   2. OK: Go To Next Step 
3. Check harness and connector between ECM and park/neutral position switch. 

   PREPARATION: 

   1. Connect the park/neutral position switch connector.
   2. Turn the ignition switch ON.

   CHECK: 

   Measure the voltage between each terminal and body ground when the shift lever is moved into each position.

   Fig 4: Identifying ECM Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   1. 5VZ-FE 
   Fig 5: Tester Connection Shift Position & Specific Condition Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. 2UZ-FE 
   Fig 6: Tester Connection Shift Position & Specific Condition Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: Repair or replace harness and connector (see  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
   2. OK: Check and replace ECM (see  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ).