Parts for your 2006 Daihatsu Terios-Throttle position sensors

2006 Daihatsu Terios throttle-position-sensor (TPS)

Yes, the 2006 Daihatsu Terios (J200 series, 3SZ-VE 1.5L) uses a throttle-position sensor. Technical references including the Daihatsu/Toyota workshop literature for the J200 Terios/Rush EFI system describe an electronic throttle body with an integral motor and dual throttle-position signals (often noted as VTA1/VTA2) sent to the ECM. The same manuals list OBD-II diagnostics for TPS circuits (e.g., P0120/P0122/P0123, P0220, and correlation codes such as P2135). Parts catalogues for the J200 platform show the TPS as part of the throttle body assembly rather than a separate bolt-on item. These sources confirm the TPS is fitted and actively used on the 2006 Terios.

On this model, the TPS feeds back the exact angle of the throttle plate so the engine control module can deliver the right amount of fuel and spark for smooth drivability and emissions control. Because the Terios is drive-by-wire, the accelerator pedal has its own position sensors, while the throttle body houses the motor and the TPS to report the actual blade position. The ECU constantly compares pedal demand to throttle position, keeping things responsive and safe.

As part of regular servicing, the TPS itself isn’t a stand-alone service item because it’s built into the throttle body. What is worthwhile is keeping the throttle body clean and ensuring the wiring and connectors are tidy and moisture-free. If there’s a hunting idle, sluggish response, or limp-home behaviour with the MIL on—and codes like P0120, P0220, or P2135—testing should confirm whether the issue is the throttle body/TPS, wiring, or a pedal sensor.

• Cleaning: Remove the intake hose and clean the throttle bore and blade with throttle-body-safe cleaner. Avoid flooding the sensor/motor area.
• Relearn: After cleaning or replacement, perform an idle/throttle relearn. Ideally use a scan tool, otherwise allow the engine to reach operating temperature and idle undisturbed for several minutes so the ECU can adapt.
• Replacement: If TPS faults persist, replace the throttle body assembly (new gasket recommended). Check harness integrity, clear codes, and complete the relearn. Torque fasteners to spec per the service manual.

Done right, this keeps the Terios smooth off the mark, stable at idle, and economical across town and country kilometres.

Popular questions

Does the 2006 Terios have a TPS or only a pedal sensor?
It has both. The accelerator pedal carries pedal position sensors, and the throttle body contains the motor and the throttle-position sensor (dual tracks) that report the actual blade angle to the ECU.

What are the common signs of a failing TPS on a 2006 Terios?
Drivers often notice erratic idle, hesitation, poor fuel economy, or limp mode with the check engine light on. Typical fault codes include P0120/P0122/P0123, P0220, or P2135. Always inspect connectors and wiring before condemning the throttle body.

Do you need to calibrate the TPS after replacement?
Yes. Because the TPS is integral to the throttle body, replacement should be followed by a throttle/idle relearn. A capable scan tool is best, otherwise a warm-up and stable idle period can allow the ECU to adapt.