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ZAPI Controllers · AUX DRIVER SHORTED
Aux Driver Shorted

What this code means

The driver of the electromechanical brake coil is shorted.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

A) Check if there is a short or a low impedance pull-down between NEB CNA#4 and –BATT. B) The driver circuit is damaged in the controller, which has to be replaced.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (AUX DRIVER SHORTED), machine model and serial number — we quote genuine and OEM replacement parts for export.

Source: ZAPI COMBIAC0 & ACE0 User Manual (AF6ZP0AG) via Heli Canada document library (doc.heliforklift.ca). Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.