How To Proceed With Troubleshooting

HINT

• Use the following procedure to troubleshoot the defogger system
• * Use the Techstream

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. 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   5

   A: Go to next step 

4. 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  ).
5. REPAIR OR REPLACE 
6. CONFIRMATION TEST 

   NEXT: END