Electrical systems – 5000

Diagnostic and troubleshooting

The most recently occurred error will be displayed. The display will alternate between the fault code and the hour meter reading when the fault occurred. If the fault code log contains more than one fault code, these can be displayed by repeatedly operating the speed control L1.

11.10.3 List of error codes

NOTE!

The text “Restart the truck!” in the following tables always means switching the truck off completely by removing the battery connector [X1], reconnecting and then switching the truck on again.

Table 11: List of error codes

Code Description

C3 TLS impact warning

C4 TLS “deactivated” warning

C19 Default parameter warning

Possible cause / Hint or Solution

The impact sensor of the TLS system has triggered and all truck modes have been locked. / Reset the TLS unit.

The TLS system is not in the standard travel mode and all truck modes have been locked. / Switch the TLS unit to the standard mode.

One or more parameter values may be outside the normal max./min. limits. These parameter values will be reset to the default values. / If this code is displayed, it may become necessary to verify all parameter settings.

C20 Butterfly warning

Problem with speed control & travel direction selector [L1]. The speed control may have been actuated during start-up. Faulty sensor(s) [A2]. / Verify operation of the speed control.

C28 Emergency switch warning

Emergency switch [S21] activated. No voltage supply to transistor regulator [A1]. Harness problem. / Check emergency switch is not depressed. Check wiring.

C29 Service time warning

Time for next service. / Verify the service parameter. The parameter may not have been reset during the most recent service intervention. / See parameter #25 - Service interval on page 48 for setting of parameter.

C31 Pressure sensor warning

C41 Battery undervoltage warning

C42 Battery overvoltage warning

C43 Transistor regulator thermal cutback

Not applicable on this truck type.

Battery voltage < 17 volt - battery due for charging. Battery parameter may not be correctly adjusted. / See # 21 - Battery size on page 47 for setting of parameter #21. Burnt fuse [A1]. / Change [A1].

Battery voltage > 33 volt. Can occur with a fully charged battery and hard reverse braking.

Driving may be too intensive. Defective transistor regulator [A1].