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Home/DTC Codes/Lincoln/MKX/2011-2015 3.7L V6/C0122
C0122

Electronic Parking Brake Switch Circuit

2011-2015 Lincoln MKX 3.7L V6

Moderate SeverityChassisGeneric (SAE)

Description

Malfunction in the EPB apply/release switch on the console or dashboard.

Symptoms

  • EPB warning light
  • Cannot apply or release parking brake
  • Parking brake stuck in current state

Common Causes

  • Faulty EPB switch
  • Switch connector corroded
  • Wiring damage
  • Switch not returning to neutral position

Diagnostic Steps

  1. Test EPB switch with multimeter
  2. Check connector and wiring
  3. Monitor switch signal with scan tool
  4. Inspect switch for physical damage

Repair Notes

Replace EPB switch assembly.

Related Codes

C0120Electronic Parking Brake Motor CircuitC0123Electronic Parking Brake Control Module

Other Chassis Codes

C0122 on Other Vehicles

Lincoln Aviator

2020-2024 3.0L Twin-Turbo V6

Lincoln Aviator

2020-2024 3.0L V6 Twin Turbo

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin Turbo V6 PHEV

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin-Turbo V6 Hybrid

Lincoln Aviator Grand Touring

2020-2024 3.0L V6 Twin Turbo Hybrid

Lincoln Continental

2017-2020 2.7L EcoBoost V6

Lincoln Continental

2017-2020 2.7L Twin-Turbo V6

Lincoln Continental

2017-2020 2.7L V6 Twin Turbo

Common Questions

What does code C0122 mean on a 2011-2015 Lincoln MKX?

C0122 stands for "Electronic Parking Brake Switch Circuit". Malfunction in the EPB apply/release switch on the console or dashboard.

What are the symptoms of C0122 on a Lincoln MKX?

Common symptoms of C0122 include: EPB warning light, Cannot apply or release parking brake, Parking brake stuck in current state.

What causes C0122 on a 2011-2015 Lincoln MKX?

Common causes of C0122 include: Faulty EPB switch, Switch connector corroded, Wiring damage, Switch not returning to neutral position.

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