How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the engine immobilizer system.
• The hand-held tester should be used in steps 4 and 6.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT 

2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (SEE  CUSTOMER PROBLEM ANALYSIS CHECK   ) 

   NEXT 

3. START HYBRID CONTROL SYSTEM 

   Result: 

   RESULT REFERENCE
   
   

   Result	Proceed to
   Power switch cannot be turned ON (ACC) or when hybrid control system can be started	A
   Power switch can be turned ON (ACC) wand hybrid control system cannot be started	B

   1. B: Go to HYBRID CONTROL SYSTEM (SEE  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
   2. A 
4. CHECK FOR ENGINE IMMOBILIZER SYSTEM DTC 
   1. Check for DTCs and note any codes that are output.
   2. Delete the DTC.
   3. Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.

      Result: 

      RESULT REFERENCE
      
      

      Result	Proceed to
      DTC does not reoccur	A
      DTC reoccurs	B

   1. B: Go to step   7 
   2. A 
5. PROBLEM SYMPTOMS TABLE (SEE  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

   1. B: Go to step   7 
   2. A 
6. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. DATA LIST/ACTIVE TEST (SEE DATA LIST/ACTIVE TEST  )
   2. Terminals of ECU (SEE TERMINALS OF ECU  )

   NEXT 

7. ADJUST, REPAIR OR REPLACE 

   NEXT 

8. CONFIRMATION TEST 

   NEXT 

   END