How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the engine immobilizer system.
• *: Use the intelligent tester.

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 (see DTC CHECK / CLEAR  ).
   2. Delete the DTC.
   3. Recheck for DTCs. Based on the DTC output above, try to force output of the same SFI or engine immobilizer system DTC by simulating the symptoms indicated by the DTC.

      Result: 

      RESULT CHART
      
      

      Result	Proceed to
      DTC does not reoccur	A
      SFI system DTC reoccurs	B
      Engine immobiliser system DTC reoccurs	C

   B:  Go to SFI SYSTEM

   C: Go to step  7

   A: Go to next step 

5. PROBLEM SYMPTOMS TABLE 

   Result: 

   RESULT CHART
   
   

   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 (see DATA LIST / ACTIVE TEST  )
   2. Terminals of ECU (see TERMINALS OF ECU  )
   3. Inspection (see INSPECTION  )

   NEXT: Go to next step 

7. ADJUST, REPAIR OR REPLACE 

   NEXT: Go to next step 

8. CONFIRMATION TEST 

   NEXT: END