Your Selected Vehicle
Parts for your 2007 Toyota Wish-Temperature sensors
Explore 4WD & Adventure
2007 Toyota Wish Temperature Sensors — What They Do and How to Look After Them
Temperature sensors are absolutely used on the 2007 Toyota Wish. Toyota’s technical literature — including the Toyota Technical Information System (TIS) workshop manuals for the ZNE10/ANE10 series, the New Car Features (NCF) documents for the 1ZZ‑FE and 1AZ‑FSE engines, and the Electrical Wiring Diagram (EWD) — all specify multiple temperature inputs. These include the Engine Coolant Temperature (ECT) sensor feeding the ECM (THW circuit), the Intake Air Temperature (IAT) sensor (integrated in the MAF on most variants), the ambient air temp sensor for the A/C system, and an automatic transmission fluid (ATF) temperature sensor within the transaxle. So yes — temperature sensors are very much part of how this Wish runs and protects itself.
On a 2007 Wish, these sensors help the ECU decide fuel mixture, ignition timing, idle speed, cooling fan control and A/C operation. The ECT tells the engine computer how warm the coolant is, which affects cold starts and fan switching. The IAT fine‑tunes fuelling based on incoming air temperature. The ambient sensor supports accurate climate control, while the ATF sensor helps the transmission manage shift quality and thermal protection.
As part of routine servicing, it’s smart to sanity‑check these sensors rather than waiting for a fault light. A quick scan tool read of ECT and IAT after an overnight cold soak should show both close to outside temperature. Warmed up, the ECT should track typical operating temps without erratic spikes. Inspect connectors for corrosion and broken tabs, and make sure grounds are clean.
- Common signs it’s time to replace: hard cold starts, high or hunting idle, poor fuel economy, radiator fans running constantly, erratic A/C performance, or harsh/late shifts (auto models).
- ECT replacement basics: usually mounted near the thermostat housing. Drain a little coolant, swap the sensor with a quality OEM‑spec unit, torque correctly, reconnect the plug, then bleed the cooling system to remove air.
- IAT on MAF: if readings are off, first check for intake leaks and clean the MAF element with proper MAF cleaner. Replace if values remain implausible.
- ATF temp sensor: typically internal to the transaxle
