Test W: The Overtemp Warning Indicator Is Inoperative
PINPOINT TEST W: THE OVERTEMP WARNING INDICATOR IS INOPERATIVEW1-W2:
W3-W4:
Normal Operation
If the overtemp warning indicator is illuminated (not flashing), at least 1 of the following temperature related conditions exist:
- the internal combustion engine coolant is overheated.
- the electric motor electronics loop coolant is overheated (Escape Hybrid).
- the failsafe cooling feature is in Mode 1 which means the internal combustion engine is running a limited operating strategy in an attempt to reduce engine temperature.
If the indicator is flashing, the failsafe cooling feature is in Mode 2 which means the internal combustion engine will shut down shortly due to an unresolvable engine overtemp condition. The input to the cluster is a message from the powertrain control module (PCM) over the communication network.
Possible Causes
- instrument cluster
- PCM