Code Definition

P024D — Intercooler bypass position sensor signal out of range - Bank 1 - sensor 1

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

About P024D

P024D 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 P024D 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; a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine; 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 P024D 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 P024D fault code is set when the Engine Control Module (ECM) detects that the signal from the intercooler bypass position sensor in Bank 1, Sensor 1, is out of the expected range. This situation indicates that the sensor's output does not align with the expected parameters, either being too high or too low. Such a signal discrepancy could be due to sensor malfunction, an issue with the bypass valve's actual position, or electrical problems in the sensor circuit. The ECM relies on this sensor for accurate data to control turbocharger system operation.

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