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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (3.6L - DTCS P0463 To P0688) >> DTC Troubleshooting >> P0627-Fuel Pump Control Circuit Open >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

The Fuel Pump control is requested by the Powertrain Control Module (PCM) along the Fuel Pump control relay circuit. The PCM controls the fuel pump relay by grounding the control side of the relay.

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