How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2008 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use these procedures to troubleshoot the LIN communication system.
- *: Use the Techstream.
- VEHICLE BROUGHT TO WORKSHOP
- INSPECT BATTERY VOLTAGE
Standard voltage: 11 to 14 V
HINT:
If the voltage is below 11 V, recharge or replace the battery before proceeding.
- INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
- Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the communication system (See TERMINALS OF ECU
).
Result
RESULT CHARTResult Proceed to No DTCs output A DTCs output B
B: Go to CAN COMMUNICATION SYSTEM
A: Go to Next Step
- Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the communication system (See TERMINALS OF ECU
).
- INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*
- Using the Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system.
Result
RESULT CHARTResult Proceed to No DTCs output A DTCs output B
B: Go to DIAGNOSTIC TROUBLE CODE CHART
A: Go to Next Step
- Using the Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system.
- OVERALL ANALYSIS AND TROUBLESHOOTING*
- Data List/Active Test (See DATA LIST / ACTIVE TEST )
- Terminals of ECU (See TERMINALS OF ECU )
- ADJUST, REPAIR OR REPLACE
NEXT: END