How To Proceed With Troubleshooting

HINT:

• Using the procedure to troubleshoot the engine immobiliser system.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   11 to 14 V 

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

3. CRANK ENGINE FOR MORE THAN 10 SECONDS 
4. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output (see DIAGNOSTIC TROUBLE CODE CHART  ).
   2. Delete the DTC.
   3. Recheck for DTCs. Based on the DTC output above, try to force output of the same SFI system DTC or engine immobiliser system DTC by simulating the operation indicated by the DTC.

      Result: 

      ENGINE IMMOBILISER SYSTEM RESULT REFERENCE CHART
      
      

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

   B: Go to  SFI SYSTEM 

   C: Go to step   7 

   A: Go TO NEXT STEP 

5. PROBLEM SYMPTOMS TABLE 

   Result: 

   ENGINE IMMOBILISER PROBLEM SYMPTOMS TABLE
   
   

   Result	Proceed to
   Fault is not listed on problem symptoms table	A
   Fault is listed on 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. On-vehicle inspection (see INSPECTION  )
7. ADJUST, REPAIR AND REPLACE 
8. CONFIRMATION TEST 

   END