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2013 SUBARU TRIBECA
3.6L H6•AWD•AUTOMATIC•gas
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor478Torque3345Fluid10DTC1861Battery1Maintenance0Recalls6
P0578low severityPowertrain

Cruise Control Multi-Function Input A Circuit Stuck

on 2013 Subaru Tribeca 3.6L H6 · AWD

What this code means

The PCM detects that a cruise control multi-function input signal is stuck at one value. The system cannot read separate switch commands and may disable cruise control.

Symptoms

  • Cruise control won't work
  • Stuck cruise function
  • Warning light on

Common causes

  • Stuck cruise control switch
  • Damaged wiring or connector
  • Corroded switch contacts
  • Faulty PCM

Diagnostic steps

  1. Scan for related codes
  2. Monitor switch signal while pressing buttons
  3. Inspect switch for sticking
  4. Check wiring and connectors
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Other Powertrain codes on this vehicle

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