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OBD II Fault Code P2138 :

Description of Fault code P2138

Accelerator Pedal Position Sensor No.1/No.2 Voltage Correlation Error

Possible failuer P2138

  • APP Sensor failure
  • FCVSCM failure
  • Short circuit of APP Sensor Harness No.1Signal Line or No.2 Signal Line

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 P2139
OBD II Fault Code P213A
OBD II Fault Code P213B
OBD II Fault Code P213C
OBD II Fault Code P213D
OBD II Fault Code P213E
OBD II Fault Code P213F
OBD II Fault Code P2140
OBD II Fault Code P2141
OBD II Fault Code P2142
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