Code Definition

P1190 — Calibration resistor out of range

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

About P1190

P1190 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 P1190 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour.

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.

P1190 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

This Ford powertrain code relates to a calibration resistor the Engine Control Module (ECM) reads as part of setting up correct fuel delivery, most commonly associated with the diesel fuel injection pump or fuel metering circuit. The calibration resistor provides a fixed reference value that tells the ECM how to trim fuelling for the specific pump or system fitted. DTC P1190 is set when the ECM measures a resistance or resulting voltage on this circuit that falls outside the expected calibrated range, indicating an open, a short, a wrong value, or a wiring fault. On some Ford models the same c...

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