P214E
Reductant Pump A Current Too HighP214E is a generic OBD-II powertrain diagnostic trouble code: Reductant Pump A Current Too High. It is logged by the engine control unit when the scr/adblue monitor detects that a specific fault threshold has been exceeded — typically resulting in the malfunction-indicator lamp (MIL / check-engine light) being illuminated.
What P214E means
P214E — Reductant Pump A Current Too High — is an SAE generic code set when the SCR control module detects that the electrical current drawn by the AdBlue dosing pump motor exceeds the maximum calibrated threshold. The dosing pump pressurises the AdBlue supply circuit and delivers reagent to the dosing injector at controlled pressure and flow. Its motor current is continuously monitored by the SCR module as a proxy for mechanical load; overcurrent indicates the pump is working harder than normal, pointing to an obstruction, mechanical seizure, or an electrical fault.
Overcurrent in the dosing pump is most commonly caused by a restriction in the AdBlue supply line or pump outlet, forcing the motor to work against excessive back-pressure. Partial freezing of the supply line (in cold climates), a blocked inline filter, or a kinked hose are typical obstructions. A mechanically worn or beginning-to-seize pump motor also draws more current as internal friction increases. On the electrical side, a short circuit in the pump motor winding will produce high current without a mechanical load.
The SCR control module disables the pump when overcurrent is detected to prevent motor burnout, which means dosing stops entirely while the fault is active. This produces the same NOx exceedance and derate consequences as any other dosing failure code.
Common causes
Most-frequently reported root causes when P214E is logged.
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1
Blocked AdBlue inline filter restricting pump outlet flow
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2
Partially frozen AdBlue supply line creating flow restriction (cold-weather condition)
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3
Kinked or collapsed AdBlue supply or return hose
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4
Mechanically worn or beginning-to-seize pump motor with high internal friction
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5
Short circuit in pump motor winding
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6
Pump impeller damaged or jammed by contamination in the AdBlue fluid
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7
SCR control module output driver fault producing excessive drive current
Symptoms drivers notice
How to diagnose P214E
A typical diagnostic flow when this code is present.
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1
Connect a scan tool with SCR live data; read the pump motor current if the module exposes this parameter — confirm the value exceeds the specification before condemning the pump
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2
Inspect all AdBlue hoses from the tank through the pump to the injector for kinks, pinching, or collapse; repair any restrictions
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3
Check and replace the inline AdBlue filter — a blocked filter is among the most common causes of pump overcurrent
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4
In cold weather: verify the AdBlue heater is operating correctly and the supply line is fully thawed before running the pump; a frozen line will immediately cause overcurrent
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5
Disconnect the pump outlet line and measure the pump's free-running current with no outlet restriction; compare to specification — elevated free-running current confirms a motor or impeller fault
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6
Inspect AdBlue fluid for contamination (clarity, refractometer reading) — particulates can jam the impeller
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7
Replace the dosing pump assembly if free-running current is excessive and no external restrictions are found
Related powertrain codes
- B0001 — PCM Discrete Input Speed Signal Error
- B0004 — PCM Discrete Input Speed Signal Not Present
- C0359 — Four Wheel Drive Low Range (4LO) Discrete Output Circuit
- C0362 — 4LO Discrete Output Circuit High
- P2000 — NOx Adsorber Efficiency Below Threshold Bank 1
- P2001 — NOx Adsorber Efficiency Below Threshold Bank 2
Frequently asked questions
Can a blocked filter really cause P214E?
Yes. The dosing pump is a positive-displacement or centrifugal unit sized for a specific flow resistance. A blocked filter forces the motor to work against much higher pressure, directly increasing current draw. Replacing the filter is a low-cost first step.
Does the ECM allow the pump to restart automatically after P214E?
Most SCR control strategies disable the pump when overcurrent is detected and require the fault to be cleared (ignition cycle or explicit code clear) before restarting. Some modules implement a cool-down retry, but this is manufacturer-dependent.
Is it safe to clear P214E and try restarting the pump?
Only after investigating and resolving the root cause. Repeatedly restarting the pump into an overcurrent condition will burn out the motor winding. Clear the code only after confirming there are no restrictions in the circuit.
Can P214E and P2044 appear together?
Yes. If frozen AdBlue is the root cause, the temperature sensor (P2044 — circuit low or cold fault) and the pump overcurrent (P214E — pump working against frozen fluid) can both be set in the same event. Resolving the freeze condition and heater fault typically clears both codes.
Disabling P214E in software
RaceTune can permanently disable P214E — and any other OBD-II diagnostic trouble code — on every ECU family we support. The monitor is disabled inside the ECU itself, so the fault stops being logged: the warning light stays off and the engine never enters limp mode for this code. The change is tied to your exact software version.
ECUs with a P214E disable in our catalogue
Confirmed coverage from our recipe database — we support many more families. Upload your file and our identifier will match it automatically.
- Bosch MD1CP004 verified 1 software version
Software modifications affect emissions compliance and are not road-legal in many jurisdictions. RaceTune service files are intended for motorsport, off-road, and export use.
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