Description

Liebherr LTM1055-1 2001 Diagnostics Manual – Factory LICCON Error Codes

If you’re working on a Liebherr LTM1055-1 and the cab lights up with a LICCON error, you need the factory documentation to decode it. I’ve seen guys chase ghosts for hours because they tried to use a generic chart. This Liebherr LTM1055-1 2001 Diagnostics Manual is the real deal—278 pages of error codes, procedures, and part numbers straight from Liebherr-Werk Ehingen. No aftermarket reprints, no translated garbage, just the original German OEM data. Page 1 gives you the system overview. You’ll find the error code list starting on page 3, with every fault number from 000001 up, including the system reaction and the fix. That’s what separates this from a third-party PDF.

LICCON Error Code System: What This Manual Covers

This volume is labeled LIEBHERR LTM 1055-1 volume C 01 and it’s strictly the LICCON error code (LEC) diagnostics. You get the complete error table for the upper carriage and undercarriage electronics. Each entry lists the error number, a text description, the system response (like “Funzionamento gru fermo” – crane operation stopped), and the corrective action. For example, error 000002 flags an EPROM/FLASH checksum fault and tells you to check the program memory board. Error 000010 stops all crane movements and logs the fault. That’s actionable data, not guesswork. The manual also includes the reference numbers for Elektrik Oberwagen (part 98106308) and Elektrik Unterwagen (part 98292408), so you can order the correct replacement boards.

278 Pages of Factory Error Code Data

278 pages of pure diagnostics. That’s not a fluff number – every page is a table or a wiring reference. The manual covers system initialization faults (errors 000001–000018), watchdog timers, UART failures, RAM/ROM errors, and more. You get the protocol for how the crane reacts when a fault triggers: some errors log and continue, others kill all movement. Page 4 shows error 000016 – Watchdog system and driver terminated, with instruction to replace the ZE controller if it repeats. That level of detail saves you from replacing modules that aren’t broken. This isn’t a generic service manual; it’s the factory troubleshooting bible for the LICCON system.

Does This Manual Include Wiring Diagrams?

Wiring diagrams are referenced in the error tables by connector and sheet number. For example, error 000007 (UART defective) includes a Stecker (connector) code and Blatt (sheet) reference to the full wiring schematics. However, this manual does not contain the full fold-out diagrams – those are in the separate electrical schematic volumes. What you get here is the key that unlocks those diagrams: the error code to pin mapping. If you need the complete wiring set, pair this with the OEM electrical manual. For standard diagnostic protocols like On-board Diagnostics (OBD), this manual focuses on the proprietary Liebherr LICCON bus, not generic OBD. That’s fine – you don’t plug a generic scanner into a crane cab and expect it to talk.

Understand the Error Code Format

Each error entry follows the same format: Fehler-Nr. (error number), Fehlertext / Reaktion / Behebung (text, reaction, fix), Stecker (connector), Blatt (sheet), and KW (category). The KW column uses letter-number codes like E2 – those map to system groups in the factory hierarchy. Don’t skip that column. It tells you whether the fault is in the upper carriage control, undercarriage, or the central ZE unit. The manual also uses Italian text in the excerpts I’ve seen (the OCR sample is Italian), but the German original is the authoritative language. Either way, the error numbers and part numbers are universal. Cross-reference with Manual Transmission procedures? No – this is all electronics, no gearbox data. Stick to the LICCON side.

OEM vs Aftermarket: Why Factory Documentation Wins

I’ve torqued enough head bolts to know that a factory manual and a third-party copy are not the same thing. Aftermarket manuals for European machines often cut the part numbers and skip the error reaction tables. This one has the full Fehlerliste (fault list) with original Liebherr drawing numbers – 9115-700.00.00.000-010 for the error list itself. A generic reprint won’t give you the exact connector pin assignments. This manual comes from the LIEBHERR-WERK EHINGEN GMBH print run, not a scanned and OCR’d mess. If you’ve ever tried to diagnose a LICCON fault with a generic translation, you know the difference. This is the manual you put on the passenger seat when you drive the crane into the shop.

Related Manuals

• Liebherr LTM 1090/3 Diagnostics Manual – 106-Page Factory Test Program Guide
• Liebherr LTM 1090-4.1 2010 Diagnostics Manual – Factory Error Code Guide
• Liebherr LTM 1090/3 Diagnostics Manual – 135-Page Factory Test Program

Can I use this manual for other Liebherr models?

No. This manual is specific to the LTM1055-1. The LICCON system varies between models.

Does this manual include torque specs or repair procedures?

It’s a diagnostics manual, not a service manual. It focuses on error codes, system initialization faults, and troubleshooting steps. For torque values on the engine, hydraulics, or structural bolts, you need the separate LTM1055-1 service manual. However, the error codes here will tell you exactly which sensor or controller is failing, so you fix the right thing the first time. Pair this with the factory repair manual for complete coverage.

When you’re staring at a blinking red light on the LICCON panel and the crane won’t move, you don’t have time to call a dealer or guess. You need the exact error number, the crane’s reaction, and the manufacturer’s fix in front of you. That’s what this 278-page manual delivers. Access the Factory Manual now and keep it on your tablet or printed binder in the cab. It’s the only way to get the original error code data from Liebherr without the markup of a dealer service call.