Parts for your 2014 Mazda Cx-5-Throttle position sensors

2014 Mazda CX-5 Throttle Position Sensor: what it is and how to look after it

Technical sources confirm the 2014 Mazda CX-5 is fitted with throttle position sensing as part of its electronic throttle body. The Mazda CX-5 Workshop Manual (2012–2016) for SKYACTIV-G 2.0/2.5 details an Electronic Throttle Control System with two throttle position sensors (often referred to as TP or TPS1/TPS2) integrated into the throttle body alongside the throttle actuator. The Mazda electronic parts catalogue lists the throttle body assembly (e.g., PE01-13-640 for petrol) without a separately serviceable TPS, and the SKYACTIV-D 2.2 intake/throttle shutter uses a similar integrated position sensor arrangement. So yes—this model uses throttle position sensors, and they’re built into the throttle body assembly.

On a 2014 CX-5, the throttle position sensors tell the PCM exactly where the throttle plate sits, so it can match airflow to the driver’s right foot and keep idle, emissions, and fuel economy in check. Working with the accelerator pedal position sensor, they provide redundancy (two tracks) for safety and precision. When they drift or fail, the CX-5 can hesitate, idle rough, or drop into limp mode, and the check engine light will likely show with codes like P0121–P0123 or P0221–P0223.

There’s no scheduled replacement for the TPS on this model because it’s not serviceable on its own, it’s part of the throttle body. Good servicing focuses on prevention and testing. Under the bonnet, keep the throttle bore clean with a proper throttle body cleaner—go easy, avoid flooding the actuator, and don’t force the plate by hand. Check the wiring connector for corrosion or broken locking tabs, and make sure the earths are tidy. If drivability goes off, a scan of live data (TP1/TP2 agreement) and a DTC check will usually point you in the right direction.

If replacement’s needed, it’s a throttle body swap with a new gasket. Budget for fresh coolant if the body is coolant-heated, and allow extra time for an idle/throttle relearn with a scan tool—Mazda’s procedure ensures the PCM knows the new plate angles. Aftermarket cleaning or “quick fixes” won’t sort a failed internal sensor, so it’s best to fit quality parts. With the right steps, it’s a straightforward job that restores smooth idle, crisp throttle, and solid fuel economy across Aussie and Kiwi roads.

• Common signs: erratic idle, flat spots, stalling, poor economy, limp mode, MIL on.
• Typical faults logged: P0121–P0123, P0221–P0223, P2101/P2111 related to throttle control.

FAQs

Does a 2014 Mazda CX-5 have a separate TPS, or is it just the accelerator pedal sensor?
It has both. The accelerator pedal has its own dual-track sensor, and the throttle body contains dual throttle position sensors. They work together so the PCM can command and verify the throttle opening.

Can the TPS be replaced on its own?
No. For the 2014 CX-5 the TPS is integrated into the electronic throttle body. If the sensor fails or the tracks don’t agree, the correct repair is to replace the throttle body assembly and perform the appropriate relearn.

Is a relearn required after throttle body replacement or cleaning?
After replacement, yes—an idle/throttle relearn with a scan tool is recommended so the PCM stores the new plate positions. After light cleaning, the system may self-adjust, but if idle is unstable, carry out the formal relearn procedure.