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2000 BMW 528I
2.8L I6 M52•RWD•AUTOMATIC•gas•M52B28
1 active safety recall on this vehicle — view recalls
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Repairs0Labor496Torque3165Fluid8DTC1244Battery1Maintenance0Recalls1
P2203moderate severityPowertrain

NOx Sensor Circuit High Bank 1

on 2000 BMW 528i 2.8L I6 M52 · RWD

What this code means

NOx sensor bank 1 signal is above maximum expected voltage.

Symptoms

  • Check engine light
  • Over-dosing DEF

Common causes

  • Open circuit
  • Short to voltage
  • Failed sensor module

Diagnostic steps

  1. Measure signal voltage
  2. Check for open circuits

Repair notes

Repair wiring or replace NOx sensor.

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