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2000 BMW X5 4.4I E53
4.4L V8 M62•AWD•AUTOMATIC•gas•M62B44
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor489Torque2160Fluid10DTC1997Battery1Maintenance0Recalls6
P0946moderate severityPowertrain

Hydraulic Pump Relay Circuit Range/Performance

on 2000 BMW X5 4.4i E53 4.4L V8 M62 · AWD

What this code means

The hydraulic pump relay circuit is reading a value outside the expected range. The signal is present but not performing as the PCM expects.

Symptoms

  • Erratic shifting
  • Transmission warning light on
  • Intermittent transmission problems

Common causes

  • Failing hydraulic pump relay
  • Poor electrical connection or corrosion
  • Damaged relay circuit wiring
  • Faulty PCM/TCM

Diagnostic steps

  1. Inspect relay and connector for corrosion
  2. Monitor relay circuit voltage with scan tool
  3. Test relay under load
  4. Check wiring for high resistance
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