OBD II Fault Code P1038 :

Description of Fault code P1038

A/F SENSOR RELAY CIRCUIT HIGH VOLTAGE

Possible failuer P1038

• A/F Sensor relay short to power.

Diagnostic Procedure using AutoHex II Scan Tool

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

Test Conditions using AutoHex tester

• IG ON (0)
• BATTERY voltage ≥ 10.5V

Clear Fault codes Conditions

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

MIL Status

• Check Engine Light ON

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

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