40B0 — Air conditioner pressure signal Faulty
Severity: Warning
Can you drive? With caution: limp mode possible, have it checked soon
Make: BMW
| Meaning | Air conditioner pressure signal Faulty. |
| Family | Manufacturer-native code |
Frequently asked questions
What does code 40B0 mean?
Air conditioner pressure signal Faulty. Air conditioner pressure signal Faulty.
Can I keep driving with code 40B0 active?
With caution: limp mode possible, have it checked soon
How do you fix code 40B0?
Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.
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Where to get it fixed
Related codes
- 40 — DDE Error
- 40 — AirCon Compressor
- 40 — Catalytic Converter Efficiency Bank 1
- 40 — Brake Light Switch or Pedal Value Signal
- 4000 — Fuel Temperature Sensor
- 4000 — Fuel Temperature Sensor
- 4001 — Fuel Temperature Sensor
- 4001 — Fuel Temperature Sensor
- 4010 — Exhaust Gas Pressure Sensor -Short Circuit to B+
- 4010 — Exhaust Gas Pressure Sensor Short Circuit to B+
- 4011 — Exhaust Gas Pressure Sensor -Short Circuit to B
- 4011 — Exhaust Gas Pressure Sensor Short Circuit to B