Parts for your 1997 Daihatsu Gran move-Throttle position sensors

1997 Daihatsu Gran Move throttle position sensor (TPS)

Based on Daihatsu’s own technical literature and parts catalogues, the 1997 Daihatsu Gran Move (also known as the Pyzar, M100/M110 series) is fitted with a throttle position sensor on the throttle body. The Daihatsu Workshop Manual for EFI models identifies the TPS as an input to the engine control unit, and the Daihatsu Electronic Parts Catalogue lists a “Sensor, Throttle Position” for the 1.5‑litre EFI variants used in 1996–1999 vehicles. Common OBD fault references for these engines also include TPS-related codes (P0120–P0123). So yes—this vehicle uses a TPS and it’s relevant to servicing.

On a 1997 Gran Move, the throttle position sensor (TPS) tells the ECU exactly how far the throttle is opened, translating pedal movement into an electrical signal the ECU can use to manage fuel, ignition timing, and idle speed control. In normal driving that means smoother take-offs, crisper throttle response, and better fuel economy. When the TPS wears or drifts out of spec, the Gran Move can feel flat off the line, hunt at idle, surge on cruise, or throw a check engine light with TPS circuit codes.

There’s no fixed replacement interval for the TPS, it’s a “replace on condition” item. As part of routine servicing, it’s smart to do a quick health check:

• Visual: Inspect the TPS connector and wiring for corrosion, loose pins, or brittle insulation.
• Throttle body: Clean the throttle bore and plate to prevent sticky movement that can mimic TPS faults.
• Scan data: Look for a smooth TPS percentage sweep from closed to wide open without sudden jumps.
• Voltage test: On many Daihatsu units, closed throttle typically reads around 0.4–0.7 V and rises steadily towards about 4.0–4.5 V at WOT. Confirm against the workshop specs for the exact engine code.

If replacement is needed, the sensor sits on the side of the throttle body and is usually secured with two screws. Some units are slotted for adjustment, if so, set the base voltage per spec at closed throttle and confirm a clean sweep. After installation, clear codes, and allow the ECU to relearn idle—an easy few minutes of key-on and stable idle can help. Always use a quality sensor and a light hand tightening the screws (they thread into alloy). With a fresh, correctly set TPS, the Gran Move regains the easygoing drivability it’s known for across city kilometres and open-road touring alike.

Popular questions about 1997 Daihatsu Gran Move TPS

Where is the TPS located on a 1997 Gran Move?
The TPS is mounted on the side of the throttle body, opposite the throttle cable linkage. It’s a small black sensor with a three-pin plug. Follow the intake hose to the throttle body on the intake manifold and you’ll see it right on the throttle shaft.

This position lets it track the throttle plate angle directly, so the ECU gets an immediate read on pedal input.

What are the classic symptoms of a failing TPS on this model?
Common signs include erratic idle, hesitation or flat spots on light throttle, sudden surging at steady speeds, poor fuel economy, and a check engine light with TPS circuit or performance codes.

If cleaning the throttle body doesn’t help and scan data shows jumpy TPS readings, the sensor is likely due for replacement.

Does the TPS need adjustment or an ECU relearn after fitting?
Some Gran Move TPS units are adjustable. If slotted, set the closed-throttle voltage within spec, then verify a smooth sweep. Fixed, non-adjustable sensors just bolt on.

After fitting, clear stored codes and let the engine idle for a few minutes to stabilise trims. A short drive cycle with varied throttle helps the ECU settle in.