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. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   10 to 14 V 

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

3. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK 
4. INSPECT COMMUNICATION FUNCTION LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAM)* 
   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  7

   A: Go To Next Step 

5. PROBLEM SYMPTOMS TABLE 

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   If fault is not listed in problem symptoms table	A
   If 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 (see TERMINALS OF ECU  )
   2. DATA LIST / ACTIVE TEST (see DATA LIST / ACTIVE TEST  )
   3. On-vehicle Inspection (see ON-VEHICLE INSPECTION  )
7. REPAIR OR REPLACE 
8. CONFIRMATION TEST 

   NEXT: END