Operation CHARM: Car repair manuals for everyone.

GF54.30-P-2020LEH Settings on Workshop Level, Function



GF54.30-P-2020LEH Settings On Workshop Level, Function

General function requirements
^ Circuit 15R ON

The EZS control unit (N73) transmits the status of circuit 15 over the chassis CAN (CAN E), central gateway control unit (N93) and central CAN (CAN F) to the instrument cluster (A1).

Workshop level adjustments, general
The workshop level is used by the technician in the workshop for reading out vehicle and service data and provides assistance with carrying out the service.

The "Workshop level" menu is activated as follows:
- Select "Trip" menu
- Press/hold right Accept and end phone call button (S111s3) and press OK button (S110s6) within t = 1 s. Then keep both buttons pressed for t = 1 s.

The display in the multifunction display (A1p13) changes to the workshop level. Via the left multifunction steering wheel button group (S110) it is possible to scroll between the respective menus and submenus or in various lists.
The steering column tube module (N80) reads in the corresponding selection via the steering LIN (LIN E1) and transmits this to the instrument cluster via the interior CAN (CAN B), central gateway control unit and central CAN.

The following menus are accessible:
^ "Vehicle data" menu
^ "Dynamometer test" menu
^ "Active Service System PLUS workshop" menu

"Vehicle data" menu
The following data can be called up in the "Vehicle data" menu:
- Voltage U in Volts and current consumption I in amp(s)
- "High-voltage system":
- "De-energized: Yes"
- "Voltage: 12 V"
- "Current: 0 A"

- Data from instrument cluster (e.g. version number, software release)
- Engine data (e.g. engine number)
- Vehicle data (e.g. chassis number)

High-voltage system status indication







Display at:
- Circuit 15R ON
- Independent of interlock circuit status

- Circuit 15 ON
- Successful high-voltage system de-energized circuit
- Interrupted interlock circuit (error)

High-voltage system status indication







Display at:
- Circuit 15R ON
- Error in high-voltage system

- Circuit 15 ON
- High-voltage system operational (no errors)
- Unsuccessful high-voltage system de-energized circuit

"Dynamometer test" menu
Activating the dynamometer test mode prevents faults being entered into the regenerative braking system control unit (N30/6) during the brake test on the roller dynamometer.

It is possible to change between the following settings in the "Dynamometer test" submenu via the left multifunction steering wheel button group
- "On"
- "Off with circuit 15 OFF

If the workshop menu is exited and the dynamometer test mode was not deactivated beforehand, the "Dynamometer test" menu is called up automatically on the next ignition sequence.

"Active Service System PLUS workshop" menu
The following submenus can be selected in the "Active Service System PLUS workshop" menu:
- "Workshop code"
- "Service scope"
- "Service carried out" (performed service entry)
- "Vehicle handover"