Symptom Related Diagnostic Procedures
PROBLEM SYMPTOMS TABLE1. COMMUNICATION STOP MODE TABLE
a. Check that there is no open circuit in the CAN main bus line, short between the lines, or short to +B in the "CHECK CAN BUS LINE". Select "BUS CHECK" on the intelligent tester via the CAN VIM.
b. Check that the communication stop mode of the ECUs or sensors is not displayed among the following: "ENGINE", "ECT", "CRUISE CONTROL", "ABS / VSC / TRAC", "YAW / DECELERAT", "STEERING SENSOR", and "BODY / GATEWAY".
NOTE:
- Systems using the CAN communication system differ according to optional settings. Check which ECUs or sensors are installed on the vehicle.
- Non-installed ECUs or sensors are not displayed. Be careful not to consider that they are in communication stop mode.
- If 2 or more ECUs or sensors are not displayed on the intelligent tester via the CAN VIM, perform troubleshooting for communication stop mode for each undisplayed ECU or sensor. (Either side of the CAN bus lines may be open.)
