Description

Liebherr LTM 1090-4.1 2010 Diagnostics Manual – Factory LICCON Error Code Guide

Liebherr LTM 1090-4.1 2010 Diagnostics Manual. If you are turning wrenches on a Liebherr mobile crane and the LICCON screen starts throwing numbers you don’t recognize, this is the only book you want on the bench. 484 pages, original factory print from 2010, direct from Liebherr-Werk Ehingen GmbH. Not a translation, not a third-party compilation.

I have seen too many techs waste billable hours chasing ghosts because they were using an aftermarket wiring diagram that missed a pinout or listed the wrong resistor pack. That stops here. This manual gives you the error code table, the connector numbers, the reaction the crane will have, and the repair steps. No guesswork, no missing data.

LICCON Error Code (LEC) Structure – What You Get

The core of this manual is a numbered list of every fault the LICCON system can generate. Each entry includes:

• Error number (e.g., 000001 through 000015 shown on page 3)
• Error text in both German and French
• System reaction (e.g., “crane movement impossible” or “recorded in error memory”)
• Troubleshooting steps: cable checks, part replacements, or verifying the control unit
• Connector and sheet references for wiring diagrams

You get the full range – from OS-HC11 system errors to CAN bus faults and sensor plausibility checks. If the crane shuts down and refuses to lift, you turn to page 3 and start eliminating possibilities systematically.

Does This Manual Cover the Fuel System?

No. This is strictly the Diagnostics Manual for the electronic control system. The error codes are divided between the superstructure electrical system (schematic 3375-932.17.00.001) and the carrier electrical system (schematic 3272-920.12.01.000). You can see those part numbers on page 2. If you need engine and transmission specs, look at the Liebherr LTM 1090-4.1 Mobile Crane Operators Manual or the LIEBHERR LTM 1090-4.1 Technical Data. For a broader diagnostic approach across multiple models, the Liebherr LTM 1090/3 Diagnostics Manual – 106-Page Factory Test Program Guide may give you additional test routines.

Original OEM Documentation vs. Aftermarket Reprints

I will say this once: aftermarket manuals are a liability. They skip error codes, they reuse diagrams from a different model year, and they never include the factory updates. This manual is the exact PDF that Liebherr issued in 2010. The error list starts at number 000001 and continues through hundreds of pages with the same formatting you would see on a dealer laptop. The wiring references are keyed to Liebherr’s own schematic numbers. If you try to cross-reference with a generic wiring book, you will end up replacing a perfectly good ZE control unit because you misread a connector pin. Not here.

484 Pages: What You Are Actually Getting

Every page is part of the LICCON error code (LEC) manual. The first two pages are the cover and identification sheet. Page 3 starts the error code table. From there you get continuous fault entries, each with error number, text, reaction, remedy, connector, and page cross-reference. There are no blank pages, no filler. The manual is bilingual – German left column, French right column. English is not included, but the numeric codes and schematic numbers are universal. If you have worked on any Liebherr machine with LICCON 2.0 or later, you will read the error text (even in German) and know exactly what to do.

Who Needs This Manual and Why

If you own a fleet of mobile cranes, or you are a mobile crane technician who gets called out to job sites where a LTM 1090-4.1 is down, this pays for itself the first time you avoid a control unit swap that was actually a bad ground pin. Beginners? Do not touch a Liebherr diagnostics port without this. The LICCON system locks you out if it detects an unauthorized scan tool. You need the exact procedure to reset the ZE watchdog errors – that is on page 2 and 3 for error codes 000011 and 000012. Without the manual, you are guessing. With it, you follow the factory sequence and the crane works.

How to Use the Error Code List

When the LICCON display shows a fault, you note the error number, then flip to the corresponding page in this manual. The manual is sorted numerically. For example, error 000010: “routine système bloquée” – system routine locked. The manual says the crane stops all movement and the error is recorded in memory. The remedy? “E” (no specific step listed for that entry – sometimes you just cycle power). But the note directs you to sheet 2 for further wiring checks. That is what I mean by a factory document – it tells you when to stop and when to dig deeper.

For anyone who wants background on how on-board diagnostics work in general, see On-board Diagnostics (OBD). For the transmission side (though this manual does not cover it), Manual Transmission basics can help if you are dealing with driveline issues that trigger false codes.

FAQ

Can I use this manual on a different Liebherr crane model?

No. This manual is specific to the LTM 1090-4.1. The LICCON error code list is model-specific because the wiring schematics and control unit configurations differ. Using it on a different model can mislead you.

Is the manual in English?

German and French only. The error codes and schematic numbers are numeric, so they are language-independent. If you need the text translated, run it through a tool. The numbers are what matter.

If you are done wasting time with incorrect error code interpretations, get the real thing. Access the Factory Manual and start diagnosing the way Liebherr intended.