How To Proceed With Troubleshooting

HINT: 

• Use these procedures to troubleshoot the engine immobiliser system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage

   11 to 14 V

   If the voltage is below 11 V, recharge or replace the battery before proceeding.

   NEXT: Go to next step 

3. CRANK ENGINE FOR MORE THAN 10 SECONDS 

   NEXT: Go to next step 

4. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output. Refer to DTC CHECK / CLEAR .
   2. Clear the DTCs. Refer to DTC CHECK / CLEAR .
   3. Recheck for DTCs. Try to duplicate the DTC (SFI system and engine immobiliser system) by reproducing the symptoms indicated by the DTC.
      RESULT
      
      

      Result	Proceed to
      DTC is not output	A
      SFI system DTC is output (for 1GR-FE)	B
      SFI system DTC is output (for 2TR-FE)	C
      Engine immobiliser system DTC is output	D

      B → Go to SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      C → Go to SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 

      D → Go to DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART  

      A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 
   1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .
      RESULT
      
      

      Result	Proceed to
      Fault is not listed in problem symptoms table	A
      Fault is listed in problem symptoms table	B

      B → Go to step 7 

      A: Go to next step 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST .
   2. Terminals of ECU. Refer to TERMINALS OF ECU .

      NEXT: Go to next step 

7. ADJUST, REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT → END