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Home >> Mazda >> 2019 >> 6 Signature >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> On-Board Diagnostics - Two-Step Deployment Control System >> DTC U0001-88, U0155-00: Communication Error >> Notes

DTC U0001-88, U0155-00: Communication Error: Notes

DTC U0001:88/U0155:00 SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location
  • U0001:88: Unit communication error (HS-CAN)
  • U0155:00: Communication error with instrument cluster
Detection condition U0001:88
  • SAS control module detects a CAN communication line (HS-CAN) error. U0155:00
  • SAS control module could not receive CAN signal from the instrument cluster for 5 s or more.
Fail-safe Not applicable
Possible cause
  • Malfunction in CAN bus communication line
  • Malfunction in CAN line between the SAS control module and instrument cluster
  • Instrument cluster malfunction
System wiring diagram Not applicable