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2000 BMW X5 4.4I E53
4.4L V8 M62•AWD•AUTOMATIC•gas•M62B44
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor489Torque2160Fluid10DTC1997Battery1Maintenance0Recalls6
P0579low severityPowertrain

Cruise Control Multi-Function Input A Circuit Range/Performance

on 2000 BMW X5 4.4i E53 4.4L V8 M62 · AWD

What this code means

The cruise control multi-function input signal is outside the expected range or not matching commands. This can cause cruise control to behave erratically or not respond.

Symptoms

  • Erratic cruise control
  • Cruise won't engage
  • Warning light on

Common causes

  • Faulty cruise control switch
  • Damaged wiring or connector
  • High resistance in circuit
  • Faulty PCM

Diagnostic steps

  1. Scan for related codes
  2. Monitor switch input values
  3. Test switch resistance values
  4. Inspect wiring and connectors
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