C1401 — High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off
Severity: Warning
Can you drive? With caution: limp mode possible, have it checked soon
Make: Mercedes-Benz
| Meaning | High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off. |
| Family | Chassis (C) |
Frequently asked questions
What does code C1401 mean?
High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off. High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off.
Can I keep driving with code C1401 active?
With caution: limp mode possible, have it checked soon
How do you fix code C1401?
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