Code Definition

P1193 — EGR Drive Overcurrent

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

About P1193

P1193 is a manufacturer-specific powertrain diagnostic trouble code. 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.

P1193 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

The Engine Control Module (ECM) operates the Exhaust Gas Recirculation (EGR) valve actuator and continuously monitors the current flowing through the drive circuit to confirm normal operation. DTC P1193 sets when the ECM detects actuator current exceeding the calibrated maximum limit while the EGR valve is being commanded, which indicates an excessive electrical load or a mechanical restriction opposing valve movement. The actuator is an electric motor that positions the EGR pintle, and abnormally high current usually means the motor is working against carbon binding or has an internal short. ...

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