Parts for your 2020 Mitsubishi Outlander-Temperature sensors

2020 Mitsubishi Outlander temperature sensors

Temperature sensors are absolutely fitted to the 2020 Mitsubishi Outlander. Technical references that confirm this include the Mitsubishi Motors service manual for the 2020 Outlander (engine, HVAC and transmission sections), the Mitsubishi ASA/EPC parts catalogue, and standard OBD‑II/SAE J1979 data used on the Outlander (for example, PID 05 Engine Coolant Temperature and PID 0F Intake Air Temperature). Across petrol and PHEV variants, the vehicle relies on multiple temperature inputs for engine management, transmission protection and climate control.

• Engine Coolant Temperature (ECT) sensor
• Intake Air Temperature (IAT) sensor (often integrated with the MAF)
• Ambient air temperature sensor (front grille) and A/C evaporator temp sensor (HVAC)
• CVT transmission fluid temperature sensor
• PHEV only: battery and drive-unit temperature sensors managed by the BMS

These sensors let the ECU and related controllers decide fuelling, ignition timing, idle speed, radiator fan operation, A/C performance and CVT thermal protection. Under the bonnet, the ECT helps the engine warm up cleanly and keeps it at the right operating temperature. The HVAC sensors keep the cabin comfy without fogging the windscreen, while the CVT sensor guards against overheating on hot Aussie and Kiwi days or long climbs.

There’s no scheduled replacement for temperature sensors, they’re “fit‑and‑forget” until fault symptoms or codes appear. As part of regular servicing, it’s smart to:

1. Inspect connectors and looms for corrosion, brittle insulation or damage near the thermostat housing, airbox/MAF, grille and transmission.
2. Maintain cooling system health: correct coolant type, mix and change interval help the ECT read accurately and prevent sensor scaling.
3. Avoid over‑oiled filters that can contaminate the MAF/IAT, if the IAT is separate, ensure the airbox and ducting are clean and sealed.
4. After front‑end repairs, confirm the ambient sensor in the grille is mounted correctly and reading plausibly.
5. For PHEV models, leave battery‑related temperature diagnostics and parts to trained technicians due to high‑voltage safety.

Replacement tips: use genuine or high‑quality sensors matched to the VIN, only apply thread sealant if specified, and don’t overtighten into alloy housings. After an ECT change, bleed air from the cooling system and verify warm idle temperature via scan tool (roughly 85–95 °C). Common fault indicators include poor cold starts, high fuel use, fans running constantly, erratic A/C, or DTCs such as P0115–P0119 (ECT) and P0113/P0112 (IAT). A quick OBD scan and a basic resistance/temperature check will usually pinpoint the culprit.

Where is the engine coolant temperature sensor on a 2020 Outlander?

On most 2.0/2.4‑litre petrol engines it’s mounted in the cylinder head or thermostat housing area, under the intake side of the manifold near the upper radiator outlet. Access can be tighter on some trims due to covers and intake plumbing. PHEV models may package components differently, but the ECT is still at the engine’s coolant outlet zone.

What are the signs a temperature sensor has failed?

Typical clues include hard cold starts, rich running, rough idle, poor fuel economy, the radiator fans stuck on, or a gauge/cluster reading that doesn’t match reality. A/C that cycles oddly or a CVT that goes into protection on light driving can also point to temp‑signal issues. Scan for codes like P0115–P0119 (ECT) or P0113/P0112 (IAT) and compare live data to actual temperatures.

Do temperature sensors need routine servicing?

They’re not a scheduled service item. The best care is preventative: keep coolant fresh, ensure good electrical connections, and avoid contaminating the MAF/IAT with oily residue. Replace only when testing confirms a fault, and stick with correct-spec parts to keep the Outlander’s engine, CVT and HVAC behaving as designed.