How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the combination meter.
• *: Use the intelligent tester.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT 

2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 

   11 to 14 V 

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

   NEXT 

3. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM* 
   1. Use the intelligent tester to check if the Body Multiplex Communication system (MPX) is functioning.

   Result 

   RESULT REFERENCE 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 REFERENCE 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 (see PROBLEM SYMPTOMS TABLE  ).

   PROBLEM SYMPTOMS 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. TERMINALS OF ECU 
   2. DATA LIST / ACTIVE TEST 
   3. ON-VEHICLE INSPECTION 

   NEXT 

7. ADJUST, REPAIR OR REPLACE 

   NEXT 

8. CONFIRMATION TEST 

   NEXT : END