How To Proceed With Troubleshooting

HINT:

• Use the following procedure to troubleshoot the lighting system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 
2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK 
3. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   11 to 14 V 

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

4. INSPECT CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally.

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   CAN Communication System DTC Is not output	A
   CAN Communication System DTC is output	B

   B:  Go to CAN COMMUNICATION SYSTEM

   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. Data List/Active Test (See DATA LIST / ACTIVE TEST )
   2. Terminals of ECU (See TERMINALS OF ECU )
7. ADJUST, REPAIR OR REPLACE 
8. CONFIRMATION TEST 

   NEXT: END