Haulotte HA20 LE and HA20 LE PRO (HA61 LE): electric boom lift
Haulotte error code F12.01 — CAN Fault Check wiring
Message on the display: CAN Fault Check wiring
Code F12.01 occurs in machines: Haulotte HA20LE, HA61LE, HA20LE PRO, HA61LE PRO.
blocking fault
[case 1] b0 CAN network failure detected with turret B2 ECU (U100) Machine switched OFF, with multimeter, check the resistance between 1001 (CAN high) and 1002 (CAN low) is nearly 60 Ohms (if 0 Ohm or 120 Ohm : failure, check RES TERM connection for all ECUs) [case 2] b1 CAN network failure detected with keyboard switches ECU (U107) [case 4] b2 CAN network failure detected with onboard screen ECU (U101) [case 8] b3 CAN failure detected with drive front left inverter [case 16] b4 CAN failure detected with drive front right inverter [case 32] b5 CAN failure detected with drive rear left inverter [case 64] b6 CAN failure detected with drive rear right inverter [case 128] b7 CAN failure detected with pump inverter [case 256] b8 CAN failure detected with generator inverter [case 512] b9 CAN failure detected with Battery Management System 1024 b10 CAN failure detected with CAT I Screen 2048 b11 CAN failure detected with Charger 4096 B12 CAN failure with the Tilt sensor
Description from the Haulotte service manual, in the original wording.
Possible causes
- Check ECU supplies line
- Check address connections for each B2 ECU (CN106.18/CN106.19/CN106.20)
What you can do
Switch the machine off with the emergency stop and switch it on again. If the code comes back, do not use the machine and call service.
What service does
A qualified service technician reads the code with the manufacturer's diagnostic tools, finds the cause, clears the code and carries out a function test.
Source: Haulotte Maintenance Book HA20 LE (4001028020), fault codes chapter.
The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.
Does code F12.01 not go away?
RK Rental services Haulotte lifts at our workshop or on site at the customer's premises (construction site, factory, warehouse). We read the code, remove the cause and select the parts by serial number.
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