OBD II Fault Code P0629 :

Description of Fault code P0629

PRESUPPLY FUEL PUMP CONTROL CIRCUIT HIGH VOLTAGE

Possible failuer P0629

• PRESUPPLY FUEL PUMP relay harness short to power.

Diagnostic Procedure using AutoHex II Scan Tool

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

Test Conditions using AutoHex tester

• IG ON (0)
• BATTERY voltage ≥ 10.5V

Clear Fault codes Conditions

• PRESUPPLY FUEL PUMP driver detects that control circuit is shorted to power 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

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