caution | - If DTC U0001 is stored in the SRS-ECU, diagnose the CAN main bus line.
- Whenever the ECU is replaced, ensure that the communication circuit is normal.
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DIAGNOSTIC FUNCTION
If the CAN-C circuit malfunction occurs, the SRS-ECU stores DTC U0001.
JUDGMENT CRITERIA
Because of the CAN-C bus circuit malfunction, if SRS-ECU becomes unable to perform the normal data transmission, SRS-ECU determines that an abnormality is present.
TROUBLESHOOTING HINTS
Malfunction of CAN bus line