Description

DAF XF105 2005 Technical Manual – Factory EAS System Guide

I’ve seen more aftermarket wiring diagrams than I care to count. They get the colors wrong, miss the pin numbers, and skip the ground points. Then you’re chasing a ghost all afternoon. The DAF XF105 2005 Technical Manual from AutoRepairManuals ends that. It’s the factory book—54 pages of OEM data for the EAS (Exhaust Aftertreatment System) on the XF105. No translations, no third-party guesses. Just the original DAF engineering.

EAS System Description: Power, CAN Bus, and Control Unit

This manual opens with the power supply and grounding for the EAS electronic unit (section 1.1). It then covers the CAN connection (1.2), the dosing module (1.3), temperature sensors (1.4), tank module (1.5), and the K-line diagnostics (1.6). You need the charge voltage at the unit? It’s in there. The CAN termination resistance? Also in there. The wiring schematics on page 19 show exact pin assignments—not a generic drawing. The manual then moves into the full system description: an overview drawing of the EAS unit, exhaust gas flow, and how the system operates during startup, running, standby, and after-run phases.

54 Pages of Factory Data – What the Table of Contents Actually Says

Don’t let the page count fool you. 54 pages is tight—every page has dense technical content. The manual is divided into two main sections. First, “Technische gegevens” (technical data) covering the EAS electronic unit’s voltage supply, CAN bus, dosing module, temperature sensors, tank module, and K-line. Second, the EAS section with system description, component descriptions (EAS unit, dosing module, injector, tank module, pre-cat and post-cat exhaust temp sensors, catalyst), control functions (startup, operation, standby, after-run, catalyst presence check), and then the block diagrams with legend. That’s the entire scope. No fluff.

Component Breakdown: Doser Module, Injector, and Sensors

Section 2 of the manual describes every EAS component individually. The dosing module (2.2) gets its own page with electrical connections, the injector (2.3) is shown with its mounting and flow direction, the tank module (2.4) includes level sensor wiring. The two exhaust gas temperature sensors—one before the catalyst (2.5), one after (2.6)—have their resistance curves listed. If you’re troubleshooting a DEF system that won’t dose, this section tells you exactly what to test at each sensor connector.

Control Phases: Startup, Operation, Standby, After-Run

The control functions chapter (section 3) describes the logic the EAS unit uses. The startup phase primes the system, the operation phase meters fluid based on exhaust temperature and NOx levels, standby mode keeps the system warm, and the after-run phase purges the lines to prevent crystallization. There’s even a catalyst presence check routine. Understanding these phases is the difference between replacing a good injector and fixing an electrical ground that kills the startup sequence. The block schemas in section 4 tie it all together visually.

Why This Manual Beats Aftermarket Copies

I’ve seen reprint shops sell what they call “factory manuals” but the wire colors are wrong, the component locations are from an earlier model year, and the torque values for the injector mounting bolt are missing. This one? It’s a direct scan of the 2005 DAF publication. The Manual Transmission on the XF105 has its own separate book—this manual focuses solely on the EAS system. If you’re working on the exhaust aftertreatment, you want the original, not a copy that lost a page of the Manual Transmission specs. The page numbering matches the factory binder. No guesswork.

Audience Fit: Who Needs This Manual

If you own a DAF XF105 and your check-engine light comes on with EAS related faults, this manual pays for itself on the first diagnosis. Independent truck shops, mobile diesel mechanics, and even fleet maintenance guys will find the OEM data they can’t get from generic parts catalogs. The manual assumes you have a multimeter and basic diagnostic tools—it doesn’t hold your hand, but it shows exactly which pins to probe and what voltage to expect. Beginners should have some electrical experience before digging into the CAN diagnostics, but the component drawings are clear enough to follow.

Does this manual include engine torque specs or transmission fluid capacities?

No. This is an EAS-specific technical manual. It covers the exhaust aftertreatment system electronics, sensors, and control logic. Engine mechanical torque specs are in the separate engine repair manual.

Can I use this manual for a DAF XF105 from 2006 or 2007?

The 2005 edition covers the initial EAS system. Later model years may have updated sensors or control modules. If you have a 2006 or 2007, start with this manual, but cross-reference the part numbers for the dosing module and temperature sensors (page 26 lists the original part numbers). Many components remain identical, but the wiring harness revisions—that you’ll need to verify using a later update or a DAF XF105 Electrical system Wiring Diagram for your specific year. For bodybuilder integration, see the DAF LF CF XF105 2011 Bodybuilder Guidelines and the DAF LF, CF and XF105 2010 Bodybuilder Guidelines – Section: Reaction Form for electrical interface details. But for pure EAS diagnostics, the 2005 manual is your starting point.

You don’t get this level of detail from a $25 CD-ROM sold online. You get it from a factory scan that hasn’t been re-traced. If you’re serious about keeping that XF105 on the road and not wasting billable hours on aftermarket misprints, Access the Factory Manual now and put it on your shop tablet.