Code Definition

P1183 — Engine Oil Temperature Sensor circuit

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

About P1183

P1183 is a manufacturer-specific powertrain diagnostic trouble code recorded for Ford vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1183 is stored, the module has detected 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.

P1183 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 Oil Temperature (EOT) sensor is a thermistor that reports engine oil temperature to the Powertrain Control Module (PCM), which uses it for functions such as fan control, temperature protection strategies, and adjusting fuel or timing on some applications. DTC P1183 sets when the PCM detects the EOT sensor circuit is out of range or performing incorrectly, meaning the signal voltage does not match a plausible oil temperature. As a thermistor the sensor changes resistance with temperature, so an open, a short, or high resistance in the sensor or wiring produces a false or fixed readin...

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