DTC P0128: Thermostat [02/2014 - 08/2014]: Description
WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is stored when the engine coolant temperature does not reach 75°C (167°F) despite sufficient engine warm-up time having elapsed.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0128 | Thermostat | All of the following conditions are met for 5 seconds (2 trip detection logic): (a) Cold start (b) The engine is warmed up (c) The engine coolant temperature is less than 75°C (167°F) |
|
Comes on | DTC stored |