10F400

The maximum rail pressure was exceeded.


Possible cause:

- Check components of high pressure control circuit.
Affected functions:

- Power generation

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Test 1: Check low-pressure fuel circuit and high-pressure fuel circuit.

1. Check low-pressure fuel circuit and high-pressure fuel circuit.
Check components of high pressure control circuit.
Note on fault setting conditions

- If one of the associated fault codes has the status 'CURRENT' or there is a customer complaint or stored faults with high frequency counter, then perform further tests.
- If the fault has occurred once and no customer complaint has been received, erase the fault memory.
- Before performing any further work, the fuel level when the fault occurred must be checked in the fault freeze frame data.
- Make sure that the vehicle was only refueled with diesel fuel.
Warning!

- Always observe the specified sequence of the component tests listed below.
Explanation of the following test

- The following tests check both the entire low-pressure fuel circuit and the high-pressure fuel circuit.
Communication with ECU required