Haulotte Optimum 8 (Optimum 1931 E): electric scissor lift, newer generation
Haulotte error code F12.01 — CAN Fault Check wires
Message on the display: CAN Fault Check wires
Code F12.01 occurs in machines: Haulotte OPTIMUM 8, OPTIMUM 1931 E.
blocking fault
For all failure details : Machine powered off, measure the resistance between CN03.F and CN03.G. If it is not 60 Ohm ±5%, check continuity of the bus wires : CAN LOW / 1001: From CN03.G (diagnostic connector) to ACTIV SCREEN X2.8 to COMBIACX CXC.10 to ACEX AXC.10 to CANTILLER C.4. CAN HIGH / 1002: From CN03.F (diagnostic connector) to ACTIV SCREEN X2.7 to COMBIACX CXC.5 to ACEX AXC.5 to CANTILLER C.6. [case 1] No data is received from upper control box card. [case 2] No data is received from lower control box screen. [case 4] COMBIACX Module doesn't receive any CAN messages from ACEX module. [case 8] ACEX Module doesn't receive any CAN messages from COMBI ACX module. [case 16] No time (date/hour) update (problem with screen communication). [case 32] CAN frame not received from tilt sensor or stagnant transmission (timestamp not updated anymore).
Description from the Haulotte service manual, in the original wording.
Possible causes
- Check wiring.
- Check the Can Bus connections.
- Ensure that all the connectors pins are properly in place and the connectors are free of moisture or oxidation.
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 Optimum 8 (4001069810), 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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