P1911 – CAN Communication Error (Nissan)

Description

The ECM detected a malfunction in the CAN communication line.

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Symptoms

  • Multiple warnings
  • Intermittent faults

Causes

  • CAN short
  • Open circuit
  • Module fault

Diagnosis

  • Check CAN resistance
  • Inspect wiring
  • Scan network modules

Repair

  • Repair wiring
  • Replace module