Code Definition

P1104 — Turbocharger Wastegate Solenoid

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Mitsubishi

About P1104

P1104 is a manufacturer-specific powertrain diagnostic trouble code recorded for Mitsubishi vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

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.

P1104 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

For Mitsubishi vehicles, the P1104 fault code relates to a malfunction in the turbocharger wastegate solenoid, the boost control valve within the turbocharger system. This code is set when the Powertrain Control Module (PCM) detects that the wastegate solenoid circuit or its operation is outside the expected range. The solenoid modulates the vacuum or pressure signal applied to the wastegate actuator, which in turn controls how much exhaust gas bypasses the turbine and therefore regulates boost pressure. When this code is set the driver may notice reduced power, hesitation or surging under loa...

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