Description

Kubota V1505-T-E4 2013 Diagnostics Manual – Factory Reformage System Guide

You got a Kubota V1505-T-E4 2013 Diagnostics Manual in front of you? Good. Because guessing your way through a reformage system on a $30,000 diesel engine gets expensive fast. I’ve seen guys chase a “no start” for two days using a generic Chilton, then pay the dealer $400 for the real info. This manual is the real info. 226 pages, OEM factory print, KiSC issued 09/2013 A. It tells you exactly how Kubota engineers want you to diagnose this engine – no old wives’ tales, no shortcut steps.

Reformage System: What the Manual Actually Covers

This isn’t a repair manual. It’s a diagnostics manual focused on the reformage system – that’s the exhaust aftertreatment that burns soot and regens the DPF. The TOC lists INFORMATIONS DE BASE CONCERNANT LE SYSTÈME with sections on fuel system, intake/exhaust, and ECU pinouts. Page 1 starts with the danger symbol – and that’s not decoration. If you skip reading SYMBOLE DE DANGER, you’ll miss warnings about hot catalyst surfaces and high-pressure fuel. I’ve seen the results of ignoring those: burned forearms and fuel injection.

Need to know where the diagnostic connector is? Section 2, PROCÉDURE DE RACCORD DE L’OUTIL DE DIAGNOSTIC, shows connector positions for B3350 and F3990 models. It walks you through hooking up the DST-i interface and firing up Diagmaster. That’s not something you figure out on the fly.

Active Test and Functional Checks – Real Procedures

The manual gives you nine active tests under ESSAI ACTIF. You can command the preheat relay on/off, the fuel supply pump, the reformer air valves, the catalyst heater – everything. Each test includes normal values and what to watch for. There’s also an UTILITAIRE section for replacing the gear case cover or correcting the rack position sensor. If you’ve ever had a crank-no-start after a gear case seal job, that utility is gold.

Separately, the fault code list runs from P0117 (coolant temp sensor) to P0544 (exhaust temp sensor). Each code has a full diagnostic tree with voltage checks, resistance specs, and connector pin references. You don’t need to guess if it’s the sensor or the wiring – the procedure tells you.

Who Needs This Manual?

If you own a B3350 or F3990 tractor (or any machine with a V1505-T-E4), you need this. I’d also put it in the hands of any technician who works on Kubota compact equipment. The manual assumes you have basic diagnostic tools – multimeter, breakout box, DST-i – but it doesn’t assume you know the engine. It starts with a global diagnostic procedure, then lists failure symptoms (engine doesn’t start, long crank, black smoke, white smoke, surging). You pick your symptom, and the manual points you to the likely cause. Beginners will appreciate the QUESTIONNEMENT section that asks targeted questions to narrow the fault. Seasoned mechanics will appreciate that it’s not generic – it’s Kubota-specific.

One word of caution: this manual is not a substitute for understanding basic On-board Diagnostics (OBD) theory. It assumes you know how to read a wiring diagram and use a DMM. If you’ve only worked on a Manual Transmission before, this engine’s ECU logic might feel alien. But stick with the manual; it’s laid out stepwise.

226 Pages of OEM Documentation – No Aftermarket Approximation

This is an original factory publication from Kubota – not a third-party reprint. The OCR excerpt shows the exact safety warnings, torque values, and procedures that Kubota mechanics use. The aftermarket manuals I’ve seen for this engine skip the reformage system entirely or give a one-paragraph overview. This manual dedicates 20+ pages just to the active tests and fault code procedures. That’s the difference between getting it right and throwing parts at it.

For related engines, the Kubota V3800-CR-TE4B Diagnostics Manual – Factory Common Rail Specs, the Kubota 03-CR-E4, 03-CR-TE4, 03-CR-TE4BG, 03-CR-TIE4 2015 Diagnostics Manual, and the Kubota V3800-CR Series Diagnosis Manual cover common-rail variants. But for the reformage system on the V1505, this is the only manual you need.

Safety Warnings You Can’t Ignore

The manual includes a full-page SYMBOLE DE DANGER that lists procedures in French – but the icons are universal. It tells you to let the engine cool before working, disconnect the negative battery cable, and tag the operator position “NE PAS UTILISER.” I’ve wired a shop sign that says “Read the danger page first.” Replace your radiator cap when the engine is hot? You’ll get third-degree burns. The manual spells it out in DANGER, WARNING, CAUTION, IMPORTANT, and NOTE. Follow them.

FAQ

Does this manual include torque specs for the reformage system components?

Yes. Torque values are listed for the gear case cover, fuel pump, and sensor mounting bolts. The manual references factory specs – not generic values.

I don’t speak French – can I still use this manual?

The manual is entirely in French, but the diagrams, torque charts, and fault code tables use numbers and symbols that any mechanic can interpret. However, if you need the English version, I recommend getting the factory English repair manual for this engine. The diagnostic procedures are visual enough to follow, but the safety warnings in French should be translated if you’re not comfortable with the language. KiSC issued this manual in both languages; this particular copy is the French release. If you need English, check the product listing carefully or contact us.

Access the Factory Manual. Stop wasting time on internet forums. You have 226 pages of factory diagnostics sitting in a PDF. Open it, read the safety page first, then hook up your DST-i. You’ll know within an hour whether you need an ECU, a sensor, or a wiring repair. That’s what real documentation does.