P0117 Engine Coolant Temperature Circuit Low Input. Have the coolant temp sensor checked for proper operational voltage ranges. and also check the coolant level to be safe to see if its low. It may be low giving you false readings at the sensor. Leave feedback and vot if this helps as this helps others on the forum. Thanks
P0117-Engine Coolant Temperature Circuit Low
Possible Causes:
ECT sensor signal circuit is grounded in the wiring harness
ECT sensor is damaged or the PCM has failed
Hello
When the service engine
soon light (Also called the check engine light) is turned on this is
to alert you to the fact that Powertrain Control Module (computer)
has detected a failure somewhere in the systems it controls you may
not feel any difference in the way the engine runs, this can be the
transmission or the engine or emission system, there are fault codes
set in the modules memory for these faults. What needs to happen now
is to have the powertrain control module scanned with a special tool
called an OBD2 electronic engine control scanner or a OBD2 code
reader. Once the code(s) are read then you must perform the
diagnostics for each code and make the appropriate repairs based on
the findings of the diagnosis that was performed, this is called
doing "Pinpoint" testing.
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