Parts for your 2011 Toyota Land cruiser-Temperature sensors

2011 Toyota Land Cruiser Temperature Sensors

Temperature sensors are absolutely fitted to the 2011 Toyota Land Cruiser (200 Series) and are crucial to how the vehicle runs. Toyota’s factory service literature (TIS) and the Electrical Wiring Diagram for the 200 Series identify multiple sensors: the Engine Coolant Temperature (ECT) sensor feeding the ECM (with DTCs P0115–P0119), an Intake Air Temperature (IAT) sensor integrated with the mass air flow meter, an automatic transmission fluid temperature sensor (DTCs P0711–P0714), plus ambient and evaporator thermistors for the climate control. These references confirm that temperature sensing is integral to engine, transmission, and HVAC management on both the 3UR‑FE petrol and 1VD‑FTV diesel variants.

On a 2011 Land Cruiser, these sensors keep the big V8s running sweet as and help the auto box and air‑con behave properly in Aussie and Kiwi conditions. In plain terms, they:

• Engine Coolant Temp (ECT): Tell the ECM how hot the engine is for fuelling, ignition timing, cold‑start enrichment, fan control, and gauge display.
• Intake Air Temp (IAT): Help the ECM correct for air density so mixtures stay on point, especially with big swings in ambient temps.
• ATF Temp: Protect the transmission by adjusting shift strategy and torque converter lock‑up under load or heat.
• Ambient/Evaporator: Drive accurate cabin temperature control and prevent evaporator icing.

Service-wise, temperature sensors are generally “inspect and replace as needed” rather than scheduled items. Good workshops will check live data with a scan tool to see if readings look plausible (e.g., ECT close to ambient on a cold start, stable ~85–95°C at operating temp). If numbers are out of whack or codes pop up, that’s the cue.

Common clues a sensor is crook:

• Hard cold starts, rich running, poor fuel economy, or thermo fans stuck on.
• Temp gauge acting odd, harsh or delayed shifts, limp mode.
• Stored codes such as P0115–P0119 (ECT), P0110 (IAT), P0711–P0714 (ATF temp).

Replacement tips for ECT on a 2011 Land Cruiser: wait for the engine to cool fully, isolate the battery if required, and drain a little coolant. The ECT sits at the water outlet/thermostat housing on the 3UR‑FE, and on the coolant crossover housing on the 1VD‑FTV. Use quality OEM‑spec parts, a fresh sealing washer or O‑ring, correct torque, and Toyota Super Long Life Coolant (pink) when refilling. Bleed the system properly and verify temps with a scan tool. IAT faults may be resolved by inspecting the MAF/IAT connector and cleaning the MAF element with the right cleaner. Transmission temp sensor faults are usually internal to the unit and addressed during transmission diagnostics or overhaul, not routine driveway jobs.

Popular questions

Where is the engine coolant temperature sensor on a 2011 Land Cruiser?
On the 3UR‑FE 5.7‑litre petrol, the ECT sensor is mounted at the water outlet/thermostat housing near the front of the engine. On the 1VD‑FTV 4.5‑litre diesel, it’s fitted on the coolant crossover housing. Access varies a bit with accessories and market‑spec layouts, but it’s reachable with basic hand tools once the engine is cool and coolant is partially drained.

What fault codes point to a bad temperature sensor?
For the ECT, look for P0115, P0116, P0117, P0118 or P0119. Intake air temperature issues often show P0110. Transmission fluid temperature concerns flag P0711–P0714. It’s smart to confirm with live data and wiring checks before replacing parts, as corroded connectors or damaged looms can mimic a failed sensor.

Is the IAT separate from the MAF on this model?
On most 2011 Land Cruiser variants, the IAT is integrated into the Denso mass air flow meter. Some diesel configurations also monitor intake temperature downstream for boost and EGR management. If the IAT reading is odd, technicians typically inspect and clean the MAF and verify the connector before swapping components.