Back to 2003 BMW 525iT E39

2003 BMW 525IT E39

2.5L I6 M54 TouringRWDAUTOMATICgas
Repairs0Labor595Torque2406Fluid7DTC722Battery0Maintenance0Recalls0
P2627moderate severityPowertrain

O2 Sensor Pumping Current Trim Circuit Low Bank 1 Sensor 1

on 2003 BMW 525iT E39 2.5L I6 M54 Touring · RWD

What this code means

Low current in wideband O2 sensor trim circuit bank 1.

Symptoms

  • Check engine light
  • Rich running condition

Common causes

  • Sensor fault
  • Short to ground in wiring

Diagnostic steps

  1. Measure trim circuit
  2. Check for shorts

Repair notes

Replace sensor or repair wiring.

Other Powertrain codes on this vehicle

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