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DTC U1199: VIN not programmed
 
 
caution
  • When DTC U1199 is set, be sure to diagnose the CAN bus line.
  • When replacing the ECU, always check that the communication circuit is normal.
 
 
FUNCTION
SRS-ECU sets DTC U1199 when no VIN is recorded in it.
 
 
TROUBLE JUDGMENT
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
 
 
DIAGNOSIS
1. Using scan tool (M.U.T.-IIISE), diagnose CAN bus line.
2. Register the VIN and recheck the diagnostic trouble code.