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DTC Detection Logic

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DTC No. Index ("SELF-DIAG [CURRENT]"), ("SELF-DIAG [PAST]" or "TROUBLE DIAG RECORD")

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B1178 PRE-TEN2 FRONT RH [VB-SHORT] Front RH seat belt pre-tensioner 2 circuit is shorted to some power supply circuit.
  • Disconnection of wiring harness and short.
  • Internal breakdown in front RH seat belt pre-tensioner 2.
  • Internal breakdown in diagnosis sensor unit (ACU).