P1053 – DISA Valve Control Circuit Fault (BMW)

Description

P1053 BMW indicates an electrical fault in the DISA valve control circuit.

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Symptoms

  • Hesitation
  • Reduced power
  • Rough idle

Causes

  • Wiring damage
  • Actuator failure
  • Connector corrosion

Diagnosis

  • Check wiring
  • Test actuator
  • Inspect connector

Repair

  • Repair wiring
  • Replace actuator
  • Clean connector