Parts for your 2017 Ford Mondeo-Throttle position sensors

2017 Ford Mondeo throttle position sensors (TPS)

Based on Ford workshop information for the 2015–2019 Mondeo (and its sibling, the Fusion), the 2017 model does use throttle position sensors. They’re built into the electronic throttle body as a pair of redundant sensors, and the powertrain control module (PCM) constantly cross-checks them against the accelerator pedal position sensor to manage drive-by-wire throttle control. So yes, a TPS is relevant on this Mondeo—it's simply not a separate bolt-on widget like in older cable-throttle cars.

On this car, the TPS tells the PCM exactly how far the throttle plate is open, helping the engine manage fuelling, ignition timing and idle speed. With turbo EcoBoost variants, the PCM also uses TPS feedback to coordinate boost and torque requests. The twin-sensor setup provides safety, if the two signals disagree, the PCM can enter a protective mode to avoid unwanted throttle behaviour.

There’s no scheduled replacement interval for the TPS because it’s integrated into the throttle body and designed to last the life of the unit. As part of regular servicing—say every 40,000–60,000 kilometres—it's sensible to inspect the intake tract and throttle body for carbon build-up and oil mist, check the connector for corrosion, and verify there are no stored fault codes. If cleaning is needed, remove the intake duct and carefully clean the throttle bore with a suitable throttle-body cleaner. Don’t flood the motor or force the plate by hand, use short bursts and a lint-free cloth.

If the integrated TPS fails, the usual fix is to replace the entire electronic throttle body. Common clues include:

• Rough or high idle, hesitation, stalling, poor fuel economy
• “Wrench”/MIL light and limp-home mode
• Fault codes such as P0121–P0124 or P2135

Replacement tips under the bonnet: disconnect the battery, remove the intake duct, unplug the connector, and undo the throttle body fasteners. Fit a new gasket if required, torque fasteners to spec per the service manual, reconnect, and perform a throttle/idle relearn. Many Mondeos will relearn by key-on (engine off) for ~30 seconds, then idle for a few minutes with accessories off, followed by a gentle drive. A scan tool can run an electronic throttle adaptation if needed. Using an OE-quality throttle body helps avoid calibration grief. If in doubt, a qualified technician with a scan tool can save a lot of guesswork.

Popular questions

Does the 2017 Ford Mondeo have a separate TPS I can swap on its own?
No. The throttle position sensors are built into the electronic throttle body as a matched, redundant pair. If the TPS is faulty, the usual repair is to replace the throttle body assembly. The accelerator pedal has its own position sensor, but that’s a different component.

What are the signs the TPS is playing up on a 2017 Mondeo?
Expect erratic idle, hesitation, surging, poor fuel economy, or limp-home with a “wrench” light. A scan may show codes like P0121–P0124 or P2135. Intermittent wiring issues at the throttle body connector can mimic sensor faults, so it’s worth checking the plug before replacing parts.

Do I need programming after replacing the throttle body?
Usually no coding is required, but the PCM does need to relearn the throttle’s minimum/maximum stops. A basic relearn (key-on, then idle and gentle drive) often works. Some cases benefit from a scan-tool throttle/idle adaptation to speed things up and stabilise idle behaviour.