Error code
OBD2 P0939
OBD2P0939
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Hydraulic Oil Temperature Sensor Circuit Low.
Severity
moderateCan drive but monitor for worsening symptoms.
Summary
P0939 indicates that the hydraulic oil temperature sensor is reporting an abnormally low reading, which could be due to wiring issues or problems with the sensor itself.
Common Causes
- Wiring issue
- Short circuit to ground
- Faulty hydraulic oil temperature sensor
Fixes
FAQ
What does P0939 mean?
P0939 means the hydraulic oil temperature sensor is reporting a low input, which could be due to wiring issues or problems with the sensor itself.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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