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Home >> Jeep >> 2007 >> Grand Cherokee Laredo, 3.0 M >> Repair and Diagnosis >> Engine Performance >> System >> Diesel - DTCS P0591 To P0676 >> P0629-Fuel Pump Control Circuit High >> Set Conditions

Set Conditions

Set Condition:
The Engine Control Module (ECM) detects that the (K31) Fuel Pump Relay Control circuit is shorted to voltage for 2.0 seconds.

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