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DTC B1087-87: Communication Error With Commander Switch: Notes

DTC B1087:87 (CONNECTIVITY MASTER UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

Description Communication Error With Commander Switch
Detection Condition
  • The connectivity master unit (Control Module Unit) cannot receive a LIN signal from the commander switch for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe Not applicable
Possible Cause
  • Commander switch connector or terminal malfunction
  • Connectivity master unit (Control Module Unit) connector or terminal malfunction
  • Short to ground in wiring harness between connectivity master unit (Control Module Unit) terminal 2K and commander switch terminal E
  • Short to power supply in wiring harness between connectivity master unit (Control Module Unit) terminal 2K and commander switch terminal E
  • Open circuit in wiring harness between connectivity master unit (Control Module Unit) terminal 2K and commander switch terminal E
  • Commander switch malfunction
  • Connectivity master unit (Control Module Unit) malfunction
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