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Haulotte HA12 CJ and HA12 CJ+ (HA32 CJ)

Haulotte error code SE02 — Anti by-pass safety : Detection of SQ34 from 0 to 1 without any movement

Message on the display: Anti by-pass safety : Detection of SQ34 from 0 to 1 without any movement

Code SE02 occurs in machines: Haulotte HA12CJ, HA32CJ, HA12CJ+, HA32CJ+.

blocking fault

Anti by-pass safety : Detection of SQ34 from 0 to 1 without any movement

Description from the Haulotte service manual, in the original wording.

Possible causes

  • Check wiring and sensors SQ9 and SQ34 :
  • Telescopic IN SQ9=1
  • Boom + arm stowed, SQ34=1
  • Move both movements(telescopic then arm + boom) and check if failure has disappeared
  • Principle of survey : 1- failure if without any movement, the sensor goes from 0 to 1

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.

Solution from the manual

Check wiring and sensors SQ9 and SQ34 : • Telescopic IN SQ9=1 • Boom + arm stowed, SQ34=1 • Move both movements(telescopic then arm + boom) and check if failure has disappeared • Principle of survey : 1- failure if without any movement, the sensor goes from 0 to 1

Source: Haulotte Maintenance Book HA12 CJ (4000786480), fault code table.

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 SE02 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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