B1041 — Temperature Blend Door Actuator Fault
What it means: Temperature Blend Door Actuator Fault.
How serious / can you keep driving: Caution. Limp to the next safe stop.
Check first: Command actuator from cold to hot
Don't risk it — look up listed providers near you and give them this code when you call.
Listed providers nearest Baltimore, MD
Closest first. Tell them B1041 and what the truck is doing. RoadService.app lists these providers and does not employ them or carry out the repair.
- 0.0 mi away — based in Baltimore, MD · (443) 680-6789
- 0.0 mi away — based in Baltimore, MD · (410) 544-3888
- 24 hour Mobile Diesel Truck Engine Repair DEF Repairs On Site Services Road Service Laptop Diagnostic Tractors & Dump Truck☎ Call0.0 mi away — based in Baltimore, MD · (443) 591-3631
Seen on: Heavy Truck
What B1041 means
Temperature Blend Door Actuator Fault. Common causes: Blend door actuator failure.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- Blend door actuator failure
- Failed actuator motor
- binding blend door
First moves (roadside)
- Command actuator from cold to hot
- check for full travel
- replace actuator
FAQ
Temperature Blend Door Actuator Fault. Common causes: Blend door actuator failure.
Caution — Limp to the next safe stop.
The most common cause is: Blend door actuator failure. Other possibilities include Failed actuator motor; binding blend door.
Limp to the next safe stop. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Related codes
Codes that commonly appear alongside B1041, or share the same subsystem.
- Blower Motor Circuit Open (B1004)
- Blower Motor Circuit Short to Ground (B1005)
- APU HVAC Communication Fault (B1050)
- Coolant/Diesel Heater Circuit Fault (B1052)
- HVAC Control Module Voltage High (B1001)
- HVAC Control Module Voltage Low (B1002)
- A/C Pressure Sensor Circuit Fault (B1010)
- Air Distribution Actuator Fault (B1040)
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.