CAN COMMUNICATION SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
| Symptom | Suspected Area | See page |
|---|---|---|
| Open in CAN Main Wire | CAN Main Wire for Disconnection | |
| Short in CAN Bus Line | Check CAN Bus Lines for Short Circuit | |
| Short to +B in CAN Bus Line | Check CAN Bus Line for Short to +B | |
| Short to GND in CAN Bus Line | Check CAN Bus Line for Short to GND |
| Symptom | Suspected Area | See page |
|---|---|---|
| U0100, U0123, U0126 and/or C1301 DTCs output by using an intelligent tester. | ABS and Traction Actuator (Skid Control ECU) Communication Stop Mode | |
| U0126 DTC output by using an intelligent tester. | Steering Angle Sensor Communication Stop Mode | |
| U0123 DTC output by using an intelligent tester. | Yaw Rate Sensor Communication Stop Mode | |
| U0101, U0122, U0129, U0167, U0416, U1000 and/or U1003 DTC output by using an intelligent tester. | ECM Communication Stop Mode | |
| U0100 DTC output by using an intelligent tester. | Transmission Control ECU Communication Stop Mode |