How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the meter/gauge system.
• *: Use the intelligent tester.

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

   Standard: 11 to 14 V 

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

4. INSPECT COMMUNICATION FUNCTION LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)* 
   1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      MPX DTC is not output	A
      MPX DTC is output	B

   B: Go to step  8

   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   8 

   A: GO TO NEXT STEP 

6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. TERMINALS OF ECU 
   2. DATA LIST / ACTIVE TEST 
   3. ON-VEHICLE INSPECTION 
7. REPAIR OR REPLACE 
8. CONFIRMATION TEST 

   NEXT: END