Subaru P1490: Thermostat Malfunction
Is your scanner showing Subaru P1490?
No worries. We'll show you what it means and how to deal with it.
Subaru P1490: Thermostat Malfunction
OVERVIEWWhat Does The Subaru P1490 Code Mean?
DTC P0125, P0301, P0302, P0303 and P0304 not set, ECT sensor less than 140ºF and IAT sensor more than 50ºF at startup, engine runtime over 10 minutes, and the PCM detected the ECT sensor signal did not reach 160ºF under these engine operating conditions.
What Are The Potential Causes Of The Subaru P1490 Code?
- Check vehicle condition
- Check other DTC on display
- Check engine coolant
- Check radiator fan
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Genuine Subaru Thermostat & Gasket Kit
>>> INNOVA 5210
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Subaru Impreza Repair Manual for P1490 – Pages 640-641.
