Code Definition

P046E — EGR position sensor signal out of range sensor 2

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P046E

P046E is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P046E is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour; and a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P046E is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The fault code P046E is set when the Engine Control Module (ECM) detects that the signal from the second Exhaust Gas Recirculation (EGR) position sensor is out of the expected range. This condition indicates that the sensor signal does not correspond to the expected values based on the current operating conditions and the commanded EGR valve position. The EGR position sensor 2 is vital for providing accurate feedback to the ECM about the EGR valve's position, ensuring proper regulation of exhaust gases.

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