How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the tire pressure warning system.
• *: 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 INDICATOR LIGHT 
   1. Check the indicator light (see TERMINALS OF ECU  ).
4. CHECK DTC* 
   1. Check for DTC (see DTC CHECK / CLEAR  ).
   2. Clear the DTC (see DTC CHECK / CLEAR  ).
   3. Recheck for DTC (see DTC CHECK / CLEAR  ).

      Result 

      DTC RESULT CHECK
      
      

      Result	Proceed to
      DTC reoccurs	A
      DTC does not reoccur	B

   B: Go to step   6 

   A: GO TO NEXT STEP. 

5. DTC CHART 
   1. Check for tire pressure warning system DTC output (see DTC CHECK / CLEAR  ).
6. PROBLEM SYMPTOM CONFIRMATION 
7. PROBLEM SYMPTOMS TABLE 

   Result 

   PROBLEM SYMPTOMS TABLE
   
   

   Result	Proceed to
   Fault is not listed in problem symptoms table	A
   Fault is listed in problem symptoms table	B

   B: Go to step   9 

   A: GO TO NEXT STEP. 

8. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. TERMINALS OF ECU  .
   2. DATA LIST / ACTIVE TEST  .
9. REPAIR OR REPLACE 
10. CONFIRMATION TEST 

    NEXT: END