Code Definition

P022E — Intercooler bypass control B solenoid Circuit low

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

About P022E

P022E 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 P022E is stored, the module has detected a signal or supply voltage lower than the expected operating range.

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 P022E 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 P022E fault code is triggered when the engine control module (ECM) detects a lower than expected voltage in the circuit of the Intercooler Bypass Control Solenoid 'B'. This condition typically suggests an electrical issue like a short to ground or a problem within the solenoid itself that results in a decreased voltage. A low voltage in this circuit can hinder the solenoid's effectiveness in controlling the airflow through the intercooler system, which is vital for maintaining the engine's performance, especially in turbocharged vehicles.

Quick Facts