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OBD II Fault Code P1F3F :

Description of Fault code P1F3F

BVCM Output-side Excess Voltage

Possible failuer P1F3F

  • High Voltage Contactor (+,-) Drive Line, in the BM Contactor, short-circuit to GND
  • Open-circuit of Cable connecting BM Contactor and BVCM
  • BM Internal Circuit open-circuit
  • BM Fusing
  • A/C Fusing
  • DC/DC Fusing
  • Open-circuit of cable connecting FC/CM and BVCM
  • DMPI Module failure (Boosting error)
  • APMPI Module failure (DMPI Module to APMPI Module line open-circuit)
  • FCVSCM failure

Diagnostic Procedure using AutoHex II Scan Tool

  • The rear average wheel speed > 15km/h and vehicle speed on the meter<1km/h
  • If the rear average wheel speed > 15km/h and VSP<1km/h lasts for 0.3 seconds, the malfunction is determined.

Test Conditions using AutoHex tester

  • Vehicle speed / wheel speed is normal
  • Brake is out of action
  • The automatic brake is out of action

Clear Fault codes Conditions

  • The rear average wheel speed > 15km/h and vehicle speed on the meter<1km/h
  • If the rear average wheel speed > 15km/h and VSP<1km/h lasts for 0.3 seconds, the malfunction is determined.

MIL Status

  • Glow ON

Programming BMW F Series


Note:

  • AutoHex II is a professional Auto diagnostic.
  • This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
    To get the accurate fault code description you may use AutoHex II

More Fault codes:

OBD II Fault Code P1F40
OBD II Fault Code P1F41
OBD II Fault Code P1F42
OBD II Fault Code P1F43
OBD II Fault Code P1F44
OBD II Fault Code P1F45
OBD II Fault Code P1F46
OBD II Fault Code P1F47
OBD II Fault Code P1F48
OBD II Fault Code P1F49
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