How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the key reminder warning system.
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

   HINT:

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

3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
   1. Use the Techstream to check if the CAN communication system is functioning normally.

   Result: 

   RESULT CHART
   
   

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

   B: GO TO CAN COMMUNICATION SYSTEM 

   A: Go to next step 

4. PROBLEM SYMPTOMS TABLE 

   Result: 

   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  6

   A: Go to next step 

5. OVERALL ANALYSIS AND TROUBLESHOOTING* 
   1. Operation Check (see OPERATION CHECK )
   2. Terminals of ECU (see TERMINALS OF ECU )
   3. Data List / Active Test (see DATA LIST / ACTIVE TEST )
6. REPAIR OR REPLACE 
7. CONFIRMATION TEST 

   NEXT: END