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Home/DTC Codes/Lincoln/MKX/2018-2018 3.7L V6/B0203
B0203

Rear Right Power Window Motor Circuit

2018-2018 Lincoln MKX 3.7L V6

Low SeverityBodyGeneric (SAE)

The 2018 Lincoln MKX is equipped with a 3.7L V6 engine. Below you'll find detailed b0203 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.

Description

Malfunction in the rear right power window motor circuit.

Symptoms

  • Rear right window not working
  • Slow window movement
  • Motor hums without movement

Common Causes

  • Faulty motor
  • Broken regulator
  • Switch failure
  • Wiring damage

Diagnostic Steps

  1. Check fuse
  2. Test switch
  3. Direct-power motor
  4. Inspect regulator

Repair Notes

Replace motor or regulator assembly.

Related Codes

B0200Driver Power Window Motor CircuitB0202Rear Left Power Window Motor Circuit

Other Body Codes

B0203 on Other Vehicles

Lincoln Aviator

2003-2003 4.6L V8 DOHC

Lincoln Aviator

2004-2004 4.6L V8 DOHC

Lincoln Aviator

2005-2005 4.6L V8 DOHC

Lincoln Aviator

2020-2020 3.0L Twin-Turbo V6

Lincoln Aviator

2020-2020 3.0L V6 Twin Turbo

Lincoln Aviator

2020-2020 3.0L V6 Twin Turbo Hybrid

Lincoln Aviator

2021-2021 3.0L Twin-Turbo V6

Lincoln Aviator

2021-2021 3.0L V6 Twin Turbo

Common Questions

What does code B0203 mean on a 2018-2018 Lincoln MKX?

B0203 stands for "Rear Right Power Window Motor Circuit". Malfunction in the rear right power window motor circuit.

What are the symptoms of B0203 on a Lincoln MKX?

Common symptoms of B0203 include: Rear right window not working, Slow window movement, Motor hums without movement.

What causes B0203 on a 2018-2018 Lincoln MKX?

Common causes of B0203 include: Faulty motor, Broken regulator, Switch failure, Wiring damage.

Last updated: March 2026

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