How To Proceed With Troubleshooting

HINT:

• Use these procedures to troubleshoot the key reminder warning system.
• The hand-held tester should be used in steps  3 and  5.

1. VEHICLE BROUGHT TO WORKSHOP 
   1. Go to next step. 
2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK (See  CUSTOMER PROBLEM ANALYSIS CHECK   ) 
   1. Go to next step. 
3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN) 
   1. Use the hand-held tester to check if the multiplex communication system (MPX) is functioning normally.

   Result: 

   RESULT SPECIFICATION
   
   

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

   1. B: Go to MULTIPLEX COMMUNICATION SYSTEM (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
   2. A: Go to next step. 
4. See  PROBLEM SYMPTOMS TABLE   ) 

   Result: 

   RESULT SPECIFICATION
   
   

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

   1. B: Go to step   6 
   2. A: Go to next step. 
5. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. See DATA LIST/ACTIVE TEST 
   2. See TERMINALS OF ECU 
   3. See ON-VEHICLE INSPECTION 
   4. See INSPECTION 
   1. Go to next step. 
6. ADJUST, REPAIR OR REPLACE 
   1. Go to next step. 
7. CONFIRMATION TEST 
   1. END