Electrical systems – 5000

Order numberDateValid from serial numberT-code 232370-0402006-04-10931876-787,

Table 28: List of error codes

CodeDescriptionPossible cause / Hint or Solution

C22 “Walkie” button warning One of the “Walkie” buttons is depressed during start-up. / Restart the truck!

C26 Steer servo start up error

C28 Emergency switch warning

The steering servo does not respond during initialisation. [A5] / Inspect the connections to the steering servo. [A5]

Emergency switch activated [S21]

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 # 25 - Service interval on page 45 for setting of parameter #25

C31 Pressure sensor warning

Problem with the pressure sensor or the cabling [B10]. / Verify that the voltage is 24 V between cable 24 and 40 on the pressure sensor.

Check voltage between cable 40 and 63 connected to the pressure sensor. The output voltage should be 0.5 Volt (unloaded machine) to 4,5 Volt (max. load)

C32 Pressure sensor varning, initial forks

Problem with the pressure sensor or the cabling [B11]. / Verify that the voltage is 24 V between cable 24 and 40 on the pressure sensor.

Check voltage between cable 40 and 63 connected to the pressure sensor. The output voltage should be 0.5 Volt (unloaded machine) to 4,5 Volt (max. load)

C35 Steer servo - Internal temperature warning

C41 Battery undervoltage warning

Servo internal temperature has exceeded +68 °C / Steering activity too intensive.See also code E127

Battery voltage < 17 volt

Battery parameter not correctly adjusted. / See # 21Battery size on page 44 for setting of parameter #21

Battery due for charging

C42 Battery overvoltage warning

Battery voltage > 33 volt

Fully charged battery and energy regeneration during hard reversing braking.

C43 Transistor regulator thermal cutback

C50 Platform sensor active > 5 minutes with no truck activity [S19]

C51 Logical fault in mast sensors

Driving may be too intensive

Defective transistor regulator [A1]

Sensor is continuously actuated. The sensor output has short-circuited or faulty sensor. / Inspect sensor operation.

One of the signals from the fork height detection sensors is incorrect. / Verify correct operation of all fork height sensors, [S31], [S32] & [S12]