How To Proceed With Troubleshooting

HINT:

• Using these procedures 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. CHECK ENGINE FOR MORE THAN 10 SECONDS 
4. CHECK FOR DTC* 
   1. Check for DTCs and note any codes that are output (DTC CHECK / CLEAR  ).
   2. Delete the DTC.
   3. Recheck for DTCs. Based on the DTCs output above, try to force output of the same SFI system DTC or engine immobiliser system DTC by simulating the symptoms indicated by the DTC.

   Result: 

   RESULT REFERENCE
   
   

   Result	Proceed to
   DTC does not reoccur	A
   DTCs reoccur	B

   B : Go to step  7

   A : Go To Next Step 

5. PROBLEM SYMPTOMS TABLE* 

   Result 

   RESULT REFERENCE
   
   

   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. TERMINALS OF ECU  .
7. ADJUST, REPAIR OR REPLACE* 
8. CONFIRMATION TEST 

   END