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P0235 — Turbocharger Boost Sensor A Circuit
CautionTurbo/BoostLimp to the next safe stop
Seen on: Heavy Truck
Turbocharger Boost Sensor A Circuit. Common causes: Boost pressure sensor failure.
Don't risk it — get a diesel tech on the truck.
Your code rides along, so nearby mechanics see the fault before they quote you.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- Boost pressure sensor failure
- Wiring fault
- air leak before sensor
First moves (roadside)
- Inspect MAP/boost sensor connector
- measure 5V supply and signal
FAQ
What does P0235 mean?
Turbocharger Boost Sensor A Circuit. Common causes: Boost pressure sensor failure.
How serious is P0235?
Caution — Limp to the next safe stop.
What's the most likely cause of P0235?
The most common cause is: Boost pressure sensor failure. Other possibilities include Wiring fault; air leak before sensor.
Can I keep driving with P0235?
Limp to the next safe stop. 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.