High Voltage Detected At The Fuel Lift Pump
Table of contents
P0629 JEEP Possible Causes
- Faulty Fuel Lift Pump
- Fuel Lift Pump harness is open or shorted
- Fuel Lift Pump circuit poor electrical connection
How do I fix code P0629 JEEP?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P0629 JEEP code
The cost of diagnosing the P0629 JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The commanded signal to the fuel lift pump does not match the feedback signal
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0629 JEEP Description
When the ignition switch is turned on The ECM will mobilize the fuel pump relay and run the in-tank fuel pump as soon as the ignition is switched ON. The fuel pump will function till the engine cranks or runs, and the ECM continues to obtain ignition reference pulses.