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DTC codes / P21xx · Fuel and air metering / P214E

P214EReductant Pump A Current Too High

P214E indicates that the reductant pump circuit for the diesel exhaust fluid system is drawing more current than expected, which the control module interprets as a short to ground or a failing pump. The engine computer monitors the pump's electrical current and sets this code when the measured value exceeds the calibrated threshold for a specified time.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaFuel and air metering

Symptoms you may notice

  • Illumination of the check engine light, often with no other noticeable symptoms
  • Reductant low or system fault message displayed in the driver information center
  • Reduced engine power or limp mode triggered by the control module
  • Increased diesel exhaust fluid consumption in some cases
  • Difficulty restarting the engine after shutdown if the system enters a protection strategy
  • A burning smell or visible damage at the pump connector in severe short-circuit cases

Common causes, most likely first

  1. Reductant pump motor internally shorted or seized, causing excessive current draw
  2. Chafed or damaged wiring between the pump and control module shorting to ground
  3. Corroded or contaminated pump electrical connector increasing resistance
  4. Failed reductant pump control module with a shorted output driver
  5. Water or urea intrusion into the pump housing or connector
  6. Aftermarket or incorrect pump replacement with wrong current characteristics

How to diagnose and fix it

  1. Scan all modules for related fault codes and record freeze-frame data to understand when the fault occurs
  2. Visually inspect the reductant pump connector and harness for corrosion, chafing, or signs of overheating
  3. Measure resistance of the pump motor and compare to the manufacturer's specification
  4. Check the pump circuit for a short to ground with a multimeter, isolating the control module if needed
  5. Command the pump on with a scan tool and monitor current draw to confirm excessive amperage
  6. Replace the reductant pump if it is internally shorted or seized
  7. Clear codes and perform a reductant system test drive to verify the repair

What a high current code really tells you

  • A shorted pump motor often tests fine for resistance when cold, so a current ramp test with a lab scope is more reliable than a simple ohmmeter check.
  • The control module may set P214E as a reaction to a low-voltage event elsewhere in the vehicle, so always check battery and charging system health first.
  • Urea crystallization inside the pump can cause a mechanical bind that mimics an electrical short, so inspect the pump inlet for debris before condemning the motor.
  • Some vehicles use a pulse-width-modulated output to drive the pump, and a failing driver in the control module can produce the same high-current signature as a bad pump.
  • A pump that has been replaced without resetting the system adaptations may continue to set this code until a relearn procedure is completed.

Can I keep driving with P214E?

You can usually drive the vehicle to a service location, but avoid heavy loads and long trips because the system may enter limp mode and limit speed. If the engine warning light is flashing or the vehicle loses power, stop driving and seek immediate repair.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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