How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

Techstream can be used at steps 3, 4, 6, 7, 11, 14, and 17.

VEHICLE BROUGHT TO WORKSHOP
NEXT: Go to next step
CUSTOMER PROBLEM ANALYSIS
NEXT: Go to next step
CHECK DTC AND FREEZE FRAME DATA
NEXT: Go to next step
CLEAR DTC AND FREEZE FRAME DATA
NEXT: Go to next step
PROBLEM SYMPTOM CONFIRMATION
NEXT: Go to next step
CHECK CAN COMMUNICATION SYSTEM
1. Check for output DTCs.
  HINT:
  
  The ECU of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.
  
  → CAN COMMUNICATION SYSTEM DTC IS OUTPUT: PROCEED TO CAN COMMUNICATION SYSTEM CAN COMMUNICATION SYSTEM
  
  → NO CAN COMMUNICATION SYSTEM DTC IS OUTPUT: GO TO STEP 7
CHECK MULTIPLEX COMMUNICATION SYSTEM
1. Check for output DTCs.
  HINT:
  
  The skid control ECU sends the signals of each warning light to the gateway ECU via CAN communication, and the gateway ECU sends the signals to the combination meter via multiplex communication system (BEAN).
  
  → MULTIPLEX COMMUNICATION SYSTEM DTC IS OUTPUT: PROCEED TO MULTIPLEX COMMUNICATION SYSTEM MULTIPLEX COMMUNICATION SYSTEM
  
  → NO MULTIPLEX COMMUNICATION SYSTEM DTC IS OUTPUT: GO TO STEP 8 8
DTC CHECK AND CLEAR
NEXT: Go to next step
PROBLEM SYMPTOM SIMULATION
→ SYMPTOM DOES NOT OCCUR: GO TO STEP 10

→ SYMPTOM OCCURS: GO TO STEP 11
SYMPTOM SIMULATION
NEXT: Go to next step
DTC CHECK (OTHER THAN CAN AND MULTIPLEX COMMUNICATION SYSTEM DTC)
→ NORMAL SYSTEM CODE: GO TO STEP 12

→ TROUBLE CODE: GO TO STEP 13
PROBLEM SYMPTOMS TABLE
NEXT → GO TO STEP 14
DTC CHART
NEXT: Go to next step
CIRCUIT INSPECTION
NEXT: Go to next step
IDENTIFICATION OF PROBLEM
NEXT: Go to next step
REPAIR OR REPLACE
NEXT: Go to next step
CONFIRMATION TEST
NEXT → END