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OBD II Fault Code P1037 :

Description of OBD II Fault code P1037

A/F SENSOR RELAY CIRCUIT LOW VOLTAGE

Possible failuer of OBD II Fault code P1037

  • A/F Sensor relay short to ground.
  • ECU sub relay malfunction.
  • IGP2 upstream fuse blowout

Diagnostic Procedure using AutoHex II Scan tool

  • A/F sensor relay driver detects that LAFRLY line is short to ground during predetermined duration.

Test Conditions using AutoHex Scan tool tester

  • IG ON (0)
  • BATTERY voltage ≥ 10.5V

Clear Fault codes Conditions

  • A/F sensor relay driver detects that LAFRLY line is short to ground during predetermined duration.

MIL Status

  • Check Engine Light ON

BMW Key Learning


Note:

  • AutoHex II is a professional diagnostic scan tool.
  • 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 OBD II Fault codes:

OBD II Fault Code P1038
OBD II Fault Code P1039
OBD II Fault Code P103A
OBD II Fault Code P103B
OBD II Fault Code P103C
OBD II Fault Code P103D
OBD II Fault Code P103E
OBD II Fault Code P103F
OBD II Fault Code P1040
OBD II Fault Code P1041
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