Inspection Procedure

HINT:

Read freeze frame data using hand-held tester or OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, etc. at the time of the malfunction.

1. Check shift position indicator light up. 

   PREPARATION: 

   Turn the ignition switch ON.

   CHECK: 

   Check the shift position indicator lights up.

   Fig 1: Checking Shift Position Indicator Light Up

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: See step   3 
   2. OK: Go to next step 
2. Check IG signal. 

   PREPARATION: 

   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch ON (engine is not running) and push the hand-held tester main switch ON.

   CHECK: 

   Read the IG signal on the hand-held tester while the ignition switch is ON.

   1. OK: Replace transmission control ECU. 
   2. NG: Go to next step 
3. Inspect SMT-IG fuse. 

   PREPARATION: 

   Remove the SMT-IG fuse from FL Block and J/B No. 1.

   CHECK: 

   Check the continuity of the SMT-IG fuse.

   OK: 

   1. Continuity 
   Fig 2: Removing SMT-IG Fuse From Block And J/B No. 1

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: Replace SMT-IG fuse. 
   2. OK: Go to next step 
4. Check for open or short in harness and connector between battery and transmission control ECU (IG signal) ( PROCEDURE  ). 
   1. NG: Repair or replace harness and connector. 
   2. OK: Go to next step 
5. Check ignition switch ( LOCATION  ). 
   1. NG: Replace ignition switch. 
   2. OK: Replace transmission control ECU.