Operation CHARM: Car repair manuals for everyone.

Level Control



Fault Code 1598

Voltage of terminal 30 exceeded/not reached

Diagnostic conditions

- Ignition on
- Internal level control module function test

Possible cause of fault

- Vehicle battery is or has been subjected to overvoltage (upper limit value is exceeded)
- Vehicle battery is or has been subjected to undervoltage (lower limit value is not reached)
- Fuse 'F27' (15A) in fuse carrier at right of dashboard faulty

Affected pins

Level control module, plug A:
- Pin 4
- Pin 5

Fuse in fuse carrier at right of dashboard: 'F27' (15A)

Diagnosis/troubleshooting


Part 1:




Part 2: