P0198low severityPowertrain
Engine Oil Temperature Sensor Circuit High
on 2010 Toyota Highlander 2.7L I4 · FWD
What this code means
High voltage from the engine oil temperature sensor.
Symptoms
- Check Engine Light
- Low oil temp reading displayed
Common causes
- Open circuit
- Faulty sensor
- Disconnected
Diagnostic steps
- Test voltage
- Check for opens
Repair notes
Repair or replace.
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