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OBD II Fault Code P0642 :

Description of Fault code P0642

SENSOR REFERENCE VOLTAGE A CIRCUIT LOW VOLTAGE

Possible failuer P0642

  • Sensor reference voltage A (Engine Control Module (ECM) internal)
  • Sensor reference voltage harness (FRP Sensor, MAF Sensor, boost pressure Sensor, APP A)

Diagnostic Procedure using AutoHex II Scan Tool

  • The Sensor reference voltage is detected less than a specified value for a set period of time.

Test Conditions using AutoHex tester

  • Continuously

Clear Fault codes Conditions

  • The Sensor reference voltage is detected less than a specified value for a set period of time.

MIL Status

  • Check Engine Light ON

Changing Dmaged DME in 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 P0643
OBD II Fault Code P0644
OBD II Fault Code P0645
OBD II Fault Code P0646
OBD II Fault Code P0647
OBD II Fault Code P0648
OBD II Fault Code P0649
OBD II Fault Code P064A
OBD II Fault Code P064B
OBD II Fault Code P064C
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