OBD II Fault Code P0628 :

Description of Fault code P0628

PRESUPPLY FUEL PUMP CONTROL CIRCUIT LOW VOLTAGE

Possible failuer P0628

• PRESUPPLY FUEL PUMP relay harness short to ground.

Diagnostic Procedure using AutoHex II Scan Tool

• PRESUPPLY FUEL PUMP driver detects that control circuit is shorted to ground during predetermined duration.

Test Conditions using AutoHex tester

• IG OFF (0) after engine stopped.
• BATTERY voltage ≥ 10.5V

Clear Fault codes Conditions

• PRESUPPLY FUEL PUMP driver detects that control circuit is shorted to ground during predetermined duration.

MIL Status

• Warning Indicator 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

More Fault codes: