Parts for your 2005 Suzuki Jimny-Throttle position sensors

2005 Suzuki Jimny throttle position sensor (TPS): what it does and how to look after it

Based on technical references including the Suzuki Jimny Service Manual (1998–2012, Engine/ECM section), Suzuki Electronic Parts Catalogue listings for M13A/G13BB engines, and Autodata’s technical database for the 2005 model year, the 2005 Suzuki Jimny is fitted with a throttle position sensor (TPS) mounted on the throttle body. It feeds throttle angle to the engine control module, so it’s absolutely relevant on this vehicle.

On a 2005 Jimny, the throttle-position-sensor tells the ECU exactly how far the throttle plate is opened. That signal lets the ECU trim fuel delivery, ignition timing and idle speed control, and on automatic models it even helps with shift quality. When the TPS is spot-on, the little Jimny feels crisp off the line, pulls cleanly up hills and keeps fuel use tidy around town and out bush.

It’s a sealed electronic unit, so there’s no internal servicing, but there’s smart preventive care owners can build into routine servicing:

• Keep the throttle body clean with a proper throttle-body-safe cleaner (avoid soaking the TPS itself).
• Inspect the TPS connector under the bonnet for corrosion, loose pins or chafed wiring.
• If drivability goes crook—flat spots, surging, erratic idle, harsh auto shifts, poor economy or a check engine light—scan for codes such as P0120–P0124 or P0220–P0229 and test the TPS sweep.

Testing is straightforward with a multimeter or scan tool: look for a stable closed-throttle voltage around the half-volt mark and a smooth, linear rise to roughly 4–4.5 V at wide open throttle, with no dropouts. Any dead spots or jumps, and it’s time to replace.

Replacement is a simple driveway job for most owners:

1. Disconnect the battery negative and remove the intake ducting for access.
2. Unplug the TPS and undo the two retaining screws.
3. Fit the new sensor, aligning the shaft tangs, if the mounting is slotted, set it so closed-throttle voltage is within spec, then snug the screws.
4. Reconnect, clear fault codes and perform an idle relearn (warm engine, all loads off, let it idle for a few minutes).

There’s no fixed replacement interval, most last years. As part of regular servicing every 40–60,000 kilometres, a quick throttle-body clean, connector check and a scan for smooth TPS readings will keep the Jimny happy. When replacing, choose a quality OE-equivalent sensor so the ECU gets an accurate signal and the ute keeps its trademark tractability on the road and favourite tracks.

Popular questions about 2005 Suzuki Jimny throttle-position-sensors

Does a 2005 Suzuki Jimny have a TPS?
Yes. Technical documentation (Suzuki Jimny Service Manual, ECM diagnostics, Suzuki EPC for M13A/G13BB) confirms a throttle position sensor is fitted to the throttle body and is used by the ECU for fuel, ignition and idle control.

What fault codes point to a bad TPS on a 2005 Jimny?
Common TPS-related codes include P0120–P0124 (TPS circuit range/performance, high/low input, intermittent) and P0220–P0229 on some variants. A failing sensor may also trigger idle control or mixture codes due to the bad signal.

Does a new TPS need calibration on a 2005 Jimny?
Most replacements are bolt-on. Some Jimny throttle bodies use slotted TPS mounts that allow slight rotation, in that case, set closed-throttle voltage to spec with a multimeter. After fitting, clear codes and perform an idle relearn so the ECU adapts correctly.