DTC U1199: VIN code not programmed
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
SRS-ECU stores DTC U1199 when no VIN is recorded in it.
JUDGMENT CRITERIA
SRS-ECU determines that the abnormality is present when no VIN is recorded in it.
TROUBLESHOOTING HINTS
VIN not programmed
Malfunction of the SRS-ECU
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