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OBD II Fault Code P0815 :

Description of Fault code P0815

UPSHIFT SWITCH MALFUNCTION

Possible failuer P0815

  • Control line short
  • Switch failure (Stuck ON)

Diagnostic Procedure using AutoHex II Scan Tool

  • The malfunction is detected when the Engine is started, the voltage from IG1 is more than 10.5V, and the input voltage from VBU to TCM is less than 6V, at least 2 seconds.

Test Conditions using AutoHex tester

  • ENGINE SPEED > 400rpm
  • Battery Voltage > 10.5V

Clear Fault codes Conditions

  • The malfunction is detected when the Engine is started, the voltage from IG1 is more than 10.5V, and the input voltage from VBU to TCM is less than 6V, at least 2 seconds.

MIL Status

  • ON

BMW ECU 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 P0816
OBD II Fault Code P0817
OBD II Fault Code P0818
OBD II Fault Code P0819
OBD II Fault Code P081A
OBD II Fault Code P081B
OBD II Fault Code P081C
OBD II Fault Code P081D
OBD II Fault Code P081E
OBD II Fault Code P081F
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