Code Definition

P024C — Intercooler bypass position sensor signal error - Bank 1 - sensor 1

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

About P024C

P024C 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 P024C is stored, the module has detected 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 P024C 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 P024C fault code is set when the Engine Control Module (ECM) detects an error in the signal from the intercooler bypass position sensor for Bank 1, Sensor 1. This error may be due to an erratic or out-of-range signal that does not correlate with the expected position of the bypass valve. The ECM relies on this sensor to monitor the position of the bypass valve accurately and adjust engine parameters accordingly. A signal error can arise from sensor malfunction, wiring issues, or circuit problems.

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