Code Definition

P1125 — Throttle Position Sensor intermittent

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

About P1125

P1125 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 P1125 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.

P1125 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 Powertrain Control Module (PCM) monitors the Throttle Position Sensor (TPS) signal for smooth and consistent voltage changes relative to throttle plate movement. Under normal operation, the TPS signal voltage should increase and decrease linearly between approximately 0.5 V (closed throttle) and 4.5 V (wide open throttle). DTC P1125 is stored when the PCM detects intermittent or erratic voltage fluctuations in the TPS signal that are not consistent with throttle movement or engine operating conditions. This typically indicates an unstable signal caused by wiring or connector faults, or a d...

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