Parts for your 2014 Toyota Land cruiser-Throttle position sensors

Throttle position sensor on a 2014 Toyota Land Cruiser

Yes, a throttle position sensor (TPS) is used on the 2014 Toyota Land Cruiser (200 Series). Toyota’s electronic throttle control system (ETCS‑i) integrates dual throttle position sensors (often labelled VTA1 and VTA2 in Toyota wiring diagrams) within the throttle body assembly on the petrol V8s (1UR‑FE/3UR‑FE). The diesel V8 (1VD‑FTV) also uses a motorised intake throttle with a position sensor to manage EGR flow and smooth shutdown. This is shown in Toyota’s workshop manuals and Electrical Wiring Diagrams for the 200 Series, and it’s backed up by the manufacturer’s diagnostics that include TPS‑related OBD‑II DTCs such as P0120–P0124, P0220–P0223 and P2135 referenced in Toyota service literature.

On this Cruiser, the TPS tells the engine control module exactly where the throttle plate is, so the ECU can coordinate fuel, spark (petrol), EGR and idle speed for smooth, responsive driving. Because it’s a drive‑by‑wire setup, the throttle body houses both the motor and two independent position sensors for redundancy. If the TPS signals don’t make sense, the ECU will usually light the MIL, log a fault and may drop the vehicle into limp mode to protect the drivetrain.

Typical signs the TPS or throttle body assembly needs attention include erratic idle, flat spots on take‑off, surging, poor fuel economy, harsh or delayed shifts (on autos), and the MIL with codes like P0121, P0122, P0123 or P2135. On the 2014 Land Cruiser, the TPS is not a separate bolt‑on part, it’s built into the throttle body. If the sensor fails, the fix is generally to replace the throttle body assembly with a genuine or high‑quality OEM unit.

As part of regular servicing, it’s smart to inspect and clean the throttle body every 60,000–100,000 kilometres, especially if the vehicle works hard in dust or tows. Use a throttle‑body‑safe cleaner and don’t force the plate open—let the motor move it or gently hold it without stressing the gears. On the diesel V8, clearing soot build‑up around the intake throttle helps EGR control and idle stability. Always check the connector pins and harness for moisture or chafing.

When replacing the throttle body: disconnect the battery, remove the intake ducting, swap the unit with fresh gasket, and refit carefully. After installation, perform an ETCS/throttle relearn (key‑on for a short period or, better, with a scan tool using the Toyota idle learn/ETCS initialisation routine), clear codes and verify throttle angle and idle trims on a road test. There’s no fixed replacement interval—change it when diagnostics and tests confirm a fault.

• Best practice: diagnose with live data for VTA1/VTA2 and APP correlation
• Watch for DTCs P0120–P0124, P0220–P0223, P2101–P2111, P2135
• Replace the throttle body if the built‑in TPS fails, it’s not serviceable separately

Popular questions

Does the 2014 Land Cruiser have a throttle position sensor?
Yes. All 200 Series variants use electronic throttle control. Petrol V8s have dual TPS sensors built into the throttle body, the diesel V8 has a motorised intake throttle with a position sensor for EGR and shutdown control.

Can the TPS be replaced separately on a 2014 Land Cruiser?
No. On this model the TPS is integrated into the throttle body assembly. If the sensor circuit fails or shows unreliable signals, the correct repair is to replace the throttle body and then carry out a throttle/idle relearn.

What’s the best way to maintain the TPS/throttle body?
Inspect and clean the throttle body every 60,000–100,000 km, keep connectors dry and secure, and use a scan tool to monitor throttle angles and correlation when diagnosing drivability issues. After cleaning or replacement, perform the ETCS initialisation so idle and tip‑in feel are spot on.