Parts for your 2016 Toyota Land cruiser-Temperature sensors

2016 Toyota Land Cruiser temperature sensors (temperaturesensors)

Based on Toyota’s factory repair manual and Electrical Wiring Diagram (EWD) for the 2016 J200 series, plus standard OBD‑II diagnostics used on the 3UR‑FE petrol V8 and the 1VD‑FTV V8 diesel where applicable, the 2016 Toyota Land Cruiser is fitted with multiple temperature sensors. These include the engine coolant temperature (ECT) sensor, intake air temperature (IAT) sensor, ambient air temperature sensor, transmission fluid temperature sensor, A/C evaporator temperature sensor, and—on diesel models—exhaust gas temperature (EGT) sensors for emissions and DPF control. Common Toyota DTCs (such as P0115–P0119 for ECT and P0125 for closed‑loop enable) specifically reference these devices, confirming their relevance and use.

On this Land Cruiser, temperature sensors are the quiet achievers that let the ECU and related controllers make smart decisions. The ECT sensor helps manage cold‑start enrichment, ignition timing, idle speed, radiator fan commands, and shift behaviour. The IAT trims fuelling as air density changes. The ambient and evaporator sensors keep the climate control behaving properly in Aussie and Kiwi conditions. Transmission temperature input protects the gearbox when towing or working hard off‑road. For diesel variants, EGT sensors safeguard the turbo and enable accurate DPF regeneration, preventing costly drama.

There’s no fixed replacement interval for temperaturesensors, they’re solid‑state and generally last for years. As part of routine servicing, it’s worth checking connectors for corrosion, brittle plastic clips, and dodgy earths. Keeping the cooling system healthy—correct coolant specification, the right mix, and timely changes—protects the ECT sensor tip from fouling. A quick scan‑tool check comparing live data to reality (e.g., cold engine temp should be close to ambient) is an easy win. If numbers look off, confirm with an infrared thermometer and a resistance‑vs‑temperature test against spec from Toyota service information.

When replacement is needed, use quality parts and new seals. Do the job with the engine cold, relieve system pressure, and catch coolant cleanly. Top up with the correct Toyota‑approved coolant and bleed air properly to avoid hot spots. After fitting, clear any DTCs, confirm there are no leaks under the bonnet, and road‑test while watching live data. A well‑behaved temperaturesensors setup pays back with smoother running, better fuel economy, and reliable climate control—ideal for long kilometres on the open road or low‑range work in the bush.

• Tell‑tales of a failing temp sensor: hard cold starts, rich running, poor economy, hunting idle, radiator fans running at odd times, A/C cutting in and out, DPF regen issues (diesel), or the MIL on.
• Service tip: Always inspect wiring looms near hot components and use dielectric grease sparingly on cleaned connectors to keep moisture out.

Popular questions about 2016 Toyota Land Cruiser temperaturesensors

Where is the engine coolant temperature sensor located?
On the 3UR‑FE petrol V8 it’s mounted near the thermostat/water outlet at the front of the engine, accessible from the top under the bonnet. On the 1VD‑FTV diesel V8, it’s positioned around the coolant crossover/thermostat housing. Exact location may vary slightly by market equipment, so check the Toyota EWD/repair manual diagrams.

Can a bad temperature sensor cause hard starting and high fuel use?
Yes. If the ECT or IAT reports a colder-than-actual reading, the ECU enriches the mix, leading to rough cold starts, sootier exhaust, and higher fuel consumption. Conversely, a hotter-than-actual reading can cause lean running and hesitation. Scan live data when the engine is stone cold, readings should sit close to ambient.

Do temperature sensors need preventative replacement?
There’s no scheduled interval. Replace only if testing shows they’re out of spec or if faults/DTCs appear. Prevent problems by maintaining coolant on time, securing loom clips, and keeping connectors clean and dry—simple steps that help temperaturesensors last the life of the vehicle.