P282E
Control SolenoidKControl Circuit Range/PerformanceP282E is a generic OBD-II powertrain diagnostic trouble code: Control SolenoidKControl Circuit Range/Performance. It is logged by the engine control unit when the powertrain monitor detects that a specific fault threshold has been exceeded — typically resulting in the malfunction-indicator lamp (MIL / check-engine light) being illuminated.
What P282E means
P282E is stored when the ECM detects that the control circuit for EGR (exhaust gas recirculation) system B is at a higher voltage than expected. EGR system B typically refers to a secondary EGR circuit, which may include a separate EGR valve, a low-pressure EGR path, or an EGR cooler bypass actuator depending on the engine architecture. A circuit high condition occurs when the ECM commands the actuator to a low-duty state but measures a voltage on the control line that remains elevated, indicating a possible short to voltage or a loss of ground in the control path.
The EGR system reduces NOx emissions by recirculating a controlled portion of exhaust gas back into the intake, diluting the air charge and lowering peak combustion temperatures. When the EGR B actuator cannot be commanded correctly, the ECM disables EGR B control and runs in a default strategy, which typically means no EGR flow through that circuit. This increases NOx output and may trigger additional emission-related faults.
The fault should be approached as an electrical circuit diagnosis first. A wiring harness short to battery voltage is the most direct cause, but a failed actuator with an internal short, or a relay stuck closed in PWM-controlled systems, can also produce a circuit high reading at the ECM output driver.
Common causes
Most-frequently reported root causes when P282E is logged.
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1
Short to battery voltage in the EGR B actuator control wire.
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2
Failed EGR B valve or actuator with an internal short creating a high feedback voltage.
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3
Damaged or chafed wiring harness causing the signal wire to contact a power source.
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4
Failed relay or driver circuit in the EGR B control path stuck in the energized state.
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5
Corroded connector allowing voltage to feed back through an alternate path.
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6
ECM driver circuit fault causing it to detect a high condition on the output.
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7
Incorrect wiring repair introducing a short after previous service.
Symptoms drivers notice
How to diagnose P282E
A typical diagnostic flow when this code is present.
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1
Record all stored DTCs and freeze frame data; note any companion EGR efficiency or circuit codes.
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2
Inspect the EGR B actuator connector and wiring harness for chafing, bare wire, or signs of heat damage.
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3
Disconnect the EGR B actuator and measure voltage on the control wire with the ignition on; a high voltage reading with the actuator disconnected confirms a wiring short to power.
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4
Check the control circuit wiring diagram and trace the harness back to the ECM for shorts.
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5
Measure actuator coil resistance at the connector; an unusually low resistance may indicate an internally shorted actuator.
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6
Verify ECM ground integrity and supply voltage are within specification.
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7
Repair any identified wiring fault before replacing the actuator or ECM.
Vehicles where we've handled P282E
Platforms in our catalogue with confirmed P282E coverage.
Related powertrain codes
Frequently asked questions
What is EGR system B versus EGR system A?
Manufacturers designate multiple EGR circuits by letter. System A is typically the primary high-pressure EGR path; System B may refer to a low-pressure EGR loop, a second bank, or an EGR cooler bypass.
Can I drive with P282E?
Driving is possible but EGR B will be non-functional, increasing NOx emissions. On vehicles with derate strategies linked to EGR faults, a power reduction may follow.
Could the ECM itself cause a circuit high fault?
Yes, though it is less common. If wiring and actuator check normal, the ECM output driver should be suspected last.
Does P282E mean the EGR valve is stuck open?
Not necessarily. A circuit high code is an electrical condition, not a mechanical valve position fault. The EGR valve may be electrically normal but electrically uncontrollable due to the wiring fault.
Disabling P282E in software
RaceTune can permanently disable P282E — 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 P282E 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 EDC17C50 verified 1 software version
- Bosch EDC17CP09 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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