Parts for your 2006 Honda Elysion-Throttle position sensors

2006 Honda Elysion throttle position sensors (TPS) — what they do and how to look after them

Based on Honda technical documentation, the 2006 Honda Elysion (RR1–RR4, K24A 2.4L and J30A V6) does use throttle position sensors. The model features an electronic throttle control (drive‑by‑wire) throttle body that houses dual throttle position sensors, typically labelled TP Sensor A and TP Sensor B. This is detailed in the Honda Elysion Service Manual (Fuel/Emissions – PGM‑FI – Electronic Throttle Control System), and reflected in the Honda Diagnostic System DTC list for these vehicles (e.g., P0121/P0122/P0123, P0221/P0222/P0223, P2135 TP A/B correlation). Honda’s Japan EPC for RR‑series Elysion also shows the throttle body assembly (DBW) as the serviced unit, with the TPS integrated and not sold separately.

The throttle position sensors on a 2006 Honda Elysion are the ECU’s window into what the throttle plate is actually doing. On these drive‑by‑wire setups, the throttle body contains an electric motor and two independent TPS circuits for redundancy, so the car can cross‑check readings. That signal steers fuelling, ignition timing, gearshifts, idle speed, cruise control and even the stability system, helping the big Elysion feel smooth and responsive around town and on the open road.

As part of regular servicing, it’s smart to keep an eye on the throttle body and its sensors rather than waiting for a warning light. Tell‑tale signs of trouble include erratic idle, hesitation off the mark, poor fuel economy, cruise control dropping out, or limp‑home behaviour. Common fault codes include TP range/performance and A/B correlation faults.

On this model, the TPS is built into the throttle body, so replacement usually means fitting a complete throttle body assembly. That’s not bad news — it restores the motor, gears and both sensors in one go, and avoids chasing an intermittent fault. When replacing, use a new gasket, follow torque specs, and perform an idle/throttle learn with a scan tool (Honda HDS is best). If a scan tool isn’t handy, a basic relearn can often be done by warming the engine fully, switching the ignition off for a minute, then idling with all loads off for several minutes so the ECU can settle its targets.

Maintenance‑wise, a gentle clean of the throttle bore and plate every 60,000–100,000 kilometres helps. Don’t soak the shaft area or sensors — avoid harsh solvents and don’t flood the electronics. Inspect the connector and harness routing, corrosion or a chafed loom near the throttle body can mimic a failed sensor. For owners who prefer to DIY, it’s a straightforward job with the right care, but professional calibration checks are worth it to avoid come‑backs and spurious codes.

• Inspect throttle body and connector during routine services.
• Clean lightly, avoid drowning the sensor area.
• Replace the full throttle body if the TPS is faulty, carry out a proper relearn.

FAQs

Does a 2006 Honda Elysion have a throttle position sensor?
Yes. It uses an electronic throttle body with two built‑in TPS circuits (Sensor A and B). The ECU compares both signals for accuracy and safety, and will log TP‑related fault codes if they disagree.

Can the TPS be replaced separately on a 2006 Elysion?
Generally no. On RR‑series Elysion models the TPS is integrated into the throttle body. The service fix is to replace the complete throttle body assembly, then perform an idle/throttle relearn.

How is the throttle relearn done after service?
With a scan tool (Honda HDS) select the throttle/idle learn procedure after installation. If a scan tool isn’t available, warm the engine to operating temperature, switch the ignition off for about a minute, then restart and let it idle with all accessories off for several minutes so the ECU can adapt.