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DTC B109E-87; Communication Error With Start Stop Unit: Notes

DTC B109E-87; COMMUNICATION ERROR WITH START STOP UNIT - DETECTION CONDITION & POSSIBLE CAUSE

Description Communication error with start stop unit
Detection condition
  • BCM detects a communication error with the start stop unit for 10 times continuously with the ignition switched ON (engine off or on).
Fail-safe Not applicable
Possible cause
  • Start stop unit connector or terminal malfunction
  • BCM connector or terminal malfunction
  • Short to ground in wiring harness between start stop unit terminal 1Q and BCM terminal 2J
  • Open circuit in wiring harness between start stop unit terminal 1Q and BCM terminal 2J
  • Start stop unit malfunction
  • BCM malfunction
G11472265