Parts for your 2012 Nissan Dualis-Throttle position sensors

2012 Nissan Dualis throttle-position-sensors (TPS): what they do and how to look after them

Yes, the 2012 Nissan Dualis (J10, MR20DE petrol and applicable diesel variants) uses throttle-position-sensors, built into the electronic throttle body. This is shown in the Nissan factory service manual for the J10 (Electronic Throttle Control section, EC/ETC), the Haynes Qashqai 2007–13 manual, and Nissan’s EPC/parts listings for the throttle chamber assembly (e.g., 16119-ET00A/ET00B) which includes the motor and dual TPS tracks.

On this Dualis, the TPS isn’t a separate bolt-on item. It’s integrated into the drive-by-wire throttle body and constantly tells the engine computer exactly how far the throttle plate is open. That info is crucial for fuelling, ignition timing, idle control, automatic shift behaviour, cruise control, and traction/stability systems. The unit uses two position signals for redundancy, so the ECM can spot any mismatch and keep you safe by dropping into limp mode if needed.

There’s no scheduled TPS service interval, but keeping the throttle body clean pays off. Over time, vapour and soot can build around the plate and upset airflow at idle, which can look like a TPS drama even when the sensor is fine. Under the bonnet, a careful clean with throttle-body-safe spray (don’t flood it and don’t force the plate by hand) often restores a smooth idle. Always check the connector and loom for corrosion or chafing, particularly if the car’s done big kilometres or had previous work near the intake.

If the TPS fails or the throttle body wears out, the fix is to replace the complete throttle body assembly with a new gasket. After refitting, an Idle Air Volume Learn/throttle relearn needs doing so the ECM can set the correct baseline. A proper scan tool is best, though the pedal procedure can work if followed to the letter. Expect symptoms like an erratic idle, flat spots, poor fuel economy, limp mode, or the MIL on with codes such as P0120–P0124 or P2135.

• Signs it needs attention: unstable idle, surging, hesitation on take-off, unexpected auto shift points, traction/ESP lights paired with a check engine light.
• Workshop tips: replace the throttle body gasket, verify there are no intake air leaks, clear codes, and complete the relearn before road-testing.

For keen owners and workshops alike, a clean throttle body, sound wiring, and a proper relearn after any replacement will keep the Dualis happy and responsive without dramas.

FAQs

Does the 2012 Nissan Dualis have a separate TPS I can change on its own?

No. On the J10 Dualis the TPS is built into the electronic throttle body along with the throttle motor. If the sensor fails, the whole throttle body assembly is replaced.

Do I need to program anything after replacing the throttle body on a 2012 Dualis?

Yes. Perform an Idle Air Volume Learn/throttle relearn so the ECM can set the correct idle and throttle angle baselines. A scan tool is ideal, the manual pedal procedure can work if done precisely.

What are common TPS-related symptoms on a 2012 Dualis?

Erratic idle, hesitation, sudden limp mode, poor economy, or the MIL on with codes like P0120–P0124/P2135. Always rule out intake leaks and throttle body contamination before condemning the sensor.