There isn’t a single “the temperature sensor” on a Honda CR-V. The vehicle uses several sensors to monitor temperature, with the two you’re most likely asking about being the engine coolant temperature sensor and the outside air temperature sensor. The engine coolant sensor is usually mounted on the engine block near the thermostat, while the outside air temperature sensor sits behind the front bumper near the grille. Exact placement varies by model year and engine, so checking the manual or inspecting the engine bay for your specific year is recommended.
Understanding the temperature sensors in a CR-V
The CR-V relies on multiple sensors to monitor temperature-related data for the engine management and climate control systems. Here are the main sensors you’re likely to encounter.
- Engine coolant temperature sensor (ECT) — typically screwed into the engine block or cylinder head near the thermostat housing. It reads coolant temperature to help the ECU manage fuel delivery and ignition timing.
- Outside air temperature sensor (OAT) — usually located behind the front bumper near the grille, often on the passenger side. It provides ambient air temperature to the climate control system and gauge display.
- Intake air temperature sensor (IAT) — installed in the intake duct or near the throttle body. It measures the temperature of incoming air for the engine’s air-fuel calculations.
Note: In some CR-V generations, the OAT sensor location can vary slightly (for example, behind the bumper fascia or integrated into the bumper/ fog-light area). Always verify with your exact year and engine if you’re unsure.
Where to look for each sensor by type
Below is a quick guide to where these sensors are typically found on most CR-V models. Layouts can shift between generations, so use this as a starting point and confirm for your specific year.
- Engine coolant temperature sensor (ECT) — on the engine block or cylinder head, near the thermostat housing; often accessible from the top of the engine with the intake manifold nearby.
- Outside air temperature sensor (OAT) — behind the front bumper, typically on the passenger side near the lower grille or fog-light area; sometimes housed in the bumper wiring harness.
- Intake air temperature sensor (IAT) — in the intake air duct or at the throttle body, part of the intake manifold assembly in many engines.
For exact location, consult the service manual or dealership diagrams for your specific CR-V year and engine code.
How to locate the sensors on your vehicle
Use these practical steps to identify the precise spots on your CR-V:
- Park on a level surface, turn off the engine, and open the hood to access the engine bay.
- For the ECT, follow the wiring harness that leads to the engine block near the thermostat housing; the sensor is a small protruding probe in the coolant passage.
- For the OAT, inspect the front bumper on the passenger side around the lower grille or fog-light area for a small sensor attached to a wiring harness.
- If access is difficult, refer to the vehicle’s service manual or a reputable repair video for your exact year and engine code, or ask a dealer parts counter for the sensor’s location by VIN.
Handle sensors with care. If you’re testing or replacing one, ensure the engine is off and the cooling system is not under pressure, and follow proper service procedures to avoid damage.
Notes for different generations
The basic idea remains the same across CR-V generations, but the physical placements can shift with redesigns (for example, around 2012–2016 and 2017–present models). The engine coolant temperature sensor generally stays near the thermostat housing, while the outside air temperature sensor’s position can move a bit with bumper/fascia changes. Always verify with your exact year and engine code.
Summary
In short, the Honda CR-V uses multiple temperature sensors rather than a single unit. The most common ones are the engine coolant temperature sensor on the engine block near the thermostat, and the outside air temperature sensor tucked behind the front bumper near the grille. An intake air temperature sensor in the intake path is also common on many engines. For precise location, consult your owner's manual or a service manual for your specific year and engine, or contact a Honda dealer with your VIN.