DTC B1646: Coding data mismatch
caution
If DTC B1646 is stored in the SRS-ECU, diagnose the CAN main bus line.
Whenever the ECU is replaced, ensure that the communication circuit is normal.
DIAGNOSTIC FUNCTION
If the vehicle information data is not registered to the combination meter, the SRS-ECU stores DTC B1646.
JUDGMENT CRITERIA
When correct information data is not received from ETACS-ECU, SRS-ECU will determine that the a problem has occurred.
TROUBLESHOOTING HINTS
Malfunction of CAN bus line
Malfunction of ETACS-ECU
Malfunction of SRS-ECU
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