81 — Exhaust differential pressure
Severity: Warning
Can you drive? With caution: limp mode possible, have it checked soon
Make: MAN
| Meaning | Exhaust differential pressure. |
| System | EDC |
| Family | Manufacturer-native code |
Frequently asked questions
What does code 81 mean?
Exhaust differential pressure. Exhaust differential pressure. (System: EDC)
Can I keep driving with code 81 active?
With caution: limp mode possible, have it checked soon
How do you fix code 81?
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.
Need help with this fault?
We are ECU specialists: diagnosis, file repair and remapping for cars, bikes, trucks and agricultural vehicles.
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Where to get it fixed
Related codes
- 81 — Door sensor door 1 rear
- 8100 — Control unit defective; ROM checksum incorrect
- 8101 — Control unit defective; RAM fault
- 8101 — Total failure of CAN messages
- 8101 — Failure of all CAN messages, but no BUSOFF
- 8102 — Control unit defective; calibration data
- 8103 — Control unit defective; parameter data
- 8103 — CAN message tachograph
- 8103 — Failure of message TCO1 (speed, reset trip counter)
- 8104 — Pressure, pressure sensor – preliminary
- 8104 — CAN message tachograph: Route information
- 8104 — Failure of Vehicle Distance message