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2002 BMW X5 4.6IS E53
4.6L V8 M62TU•AWD•AUTOMATIC•gas•M62B46TU
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor491Torque3145Fluid10DTC1267Battery1Maintenance0Recalls3
P1545high severityPowertrain

Throttle Position Control Error

on 2002 BMW X5 4.6is E53 4.6L V8 M62TU · AWD

What this code means

The DME detected that the electronic throttle body is not reaching its commanded position. The actual throttle opening does not match the DME-requested opening, indicating a throttle actuator or sensor malfunction.

Symptoms

  • Check Engine Light
  • Reduced power mode (limp mode)
  • Poor throttle response
  • Engine may idle only
  • Throttle warning light

Common causes

  • Carbon buildup on throttle blade
  • Faulty throttle body actuator motor
  • Throttle position sensor failure
  • Wiring issue to throttle body
  • DME throttle driver failure

Diagnostic steps

  1. Perform throttle body adaptation reset with scan tool
  2. Clean throttle body
  3. Test throttle position sensor voltages
  4. Inspect wiring to throttle body
  5. Test throttle motor by commanding positions

Repair notes

Clean throttle body and perform adaptation; replace throttle body if actuator motor has failed.

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