How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the combination meter.
• *: 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 BODY MULTIPLEX COMMUNICATION SYSTEM* 
   1. Use the intelligent tester to check if the Body Multiplex Communication system (MPX) is functioning.

      Result 

      RESULT CHART
      
      

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

   B:  Go to BODY MULTIPLEX COMMUNICATION SYSTEM

   A: Go to next step. 

4. CHECK CAN COMMUNICATION SYSTEM* 
   1. Use the intelligent tester to check if the CAN Communication system is functioning.

      Result 

      RESULT CHART
      
      

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

   B: Go to  CAN COMMUNICATION SYSTEM 

   A: Go to next step. 

5. PROBLEM SYMPTOMS TABLE 

   Refer to the PROBLEM SYMPTOMS TABLE .

   RESULT CHART
   
   

   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. see TERMINALS OF ECU 
   2. see DATA LIST / ACTIVE TEST 
   3. see ON-VEHICLE INSPECTION 
7. ADJUST, REPAIR OR REPLACE 
8. CONFIRMATION TEST 

   NEXT: END