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OBD II Fault Code P1F85 :

Description of Fault code P1F85

Drop of Fuel Cell Stack Voltage

Possible failuer P1F85

  • Purge Air Inlet Solenoid Valve remained open
  • Fuel Cell Stack failure
  • Fuel Cell Stack High Voltage Harness (Fuel Cell Stack to BVCM) short-circuit

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

BMW Key Programming


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 P1F86
OBD II Fault Code P1F87
OBD II Fault Code P1F88
OBD II Fault Code P1F89
OBD II Fault Code P1F8A
OBD II Fault Code P1F8B
OBD II Fault Code P1F8C
OBD II Fault Code P1F8D
OBD II Fault Code P1F8E
OBD II Fault Code P1F8F
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