Home › Fault codes › P0711
P0711 — Transmission fluid temp sensor erratic
SerioustransmissionPower derate likely — plan to stop soon
Seen on: 1000/2000/3000/4000
Transmission fluid temp sensor erratic. Common causes: Sensor aging|Wiring|Connector.
Don't risk it — get a diesel tech on the truck.
Look up listed providers near you and give them this code when you call.
How serious is it?
Serious. Power derate likely — plan to stop soon.
Most likely causes
- Sensor aging
- Wiring
- Connector
First moves (roadside)
- Swap test
- Measure sensor resistance cold vs hot
FAQ
What does P0711 mean?
Transmission fluid temp sensor erratic. Common causes: Sensor aging|Wiring|Connector.
How serious is P0711?
Serious — Power derate likely — plan to stop soon.
What's the most likely cause of P0711?
The most common cause is: Sensor aging. Other possibilities include Wiring; Connector.
Can I keep driving with P0711?
Power derate likely — plan to stop soon. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Throwing this code right now?
Find a mechanic or related guides
General diagnostic guidance for diesel engines (Cummins, Detroit, PACCAR, Volvo, Mack and more). Not a substitute for a scan-tool diagnosis on your specific truck.