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Volkswagen Audi 2013 Diagnostics Manual – Factory Readiness Code Charts

You’ve been handed a vehicle with a check engine light that won’t clear, and the generic code reader is giving you readiness monitors that say “Not Ready.” Without the factory readiness code charts for that specific model year, you’re guessing. I’ve seen techs swap oxygen sensors, clean EGR passages, and still fail the state inspection because they didn’t know the correct drive cycle or the exact monitor sequence. This Volkswagen Audi 2013 Diagnostics Manual is the Snap-on OEM publication (EAZ0031B02A Rev. E) – not a reprint, not a third-party compilation. 114 pages, printed February 2013, and it’s the same book Snap-on ships with their diagnostic tools. If you’re working on a 2013 VW or Audi, you need these readiness code charts on your bench.

Safety Information – Why It Matters on the Bench

The manual opens with safety warnings that aren’t legal filler. Page 3 covers the safety conventions using signal words with icons – DANGER, WARNING, CAUTION – each tied to specific hazards like high-voltage systems or moving components. I’ve watched a junior tech ignore the warning about backprobing connectors on a 2013 Audi A4. Fried a BCM. This section reminds you that your diagnostic tool is intended for properly trained, skilled professionals. It assumes you understand vehicle system principles before you start. If you don’t, this manual isn’t going to hold your hand. It’s a factory resource, not a tutorial for beginners. Read the safety section first, every time.

Generic Road Tests – Actual OEM Drive Cycles

Chapter 2 covers generic road tests. This isn’t some aftermarket list of “drive the car on the highway for 10 minutes.” The manual specifies exact conditions: engine coolant temperature range, throttle position percentages, and time intervals for each monitor. For example, the catalytic converter monitor requires a steady cruise between 45 and 55 mph for a minimum of 3 minutes after a cold start. These numbers come from the Volkswagen and Audi engineering teams. If you skip this chapter and try to force a readiness run by revving the engine in the parking lot, you’ll waste billable hours. Page references are internal – you’ll find the test procedures laid out step by step, no guesswork.

Volkswagen Readiness Code Charts: Factory Data for Every Model

Chapter 3 is the heart of the manual for VW work. Each chart lists the OBD-II monitor readiness status sequence for 2013 models: Jetta, Passat, Golf, Tiguan, and more. The charts include the PID (Parameter ID) hex addresses and the expected response values. You need to see “1111 1111” on your scanner? The manual shows you which monitors must be complete before the I/M readiness flag sets. I’ve used these charts to diagnose a 2013 Golf TDI that wouldn’t set the NOx monitor after a DPF replacement. Turned out the aftermarket tune had disabled the monitor – the OEM chart caught it. Volkswagen Audi CANbus Training Manual Introduction covers the network side, but for readiness, this chart is your bible.

Audi Readiness Code Charts – Separate Section for a Reason

Chapter 4 is devoted entirely to Audi: A3, A4, A5, A6, Q5, Q7, and the R8. Don’t assume VW charts work for Audi – the monitor sequences differ because of different engine controllers and CAN gateway configurations. The manual lists the specific drive cycle requirements for each Audi model. For example, the 2013 Audi Q7 TDI requires a high-voltage battery state-of-charge check before the HPFP monitor will run. That detail isn’t in any generic scan tool help file. I had a shop owner call me after chasing a “P0011” on an A6 for two days. The factory chart told him the intake camshaft correlation monitor only sets after 3 consecutive cold starts with oil temperature below 60°C. He had been warm-starting it every time. Saved him a camshaft replacement. Volkswagen Audi Self-Study Programme 224 Service Interval complements this manual for maintenance scheduling.

114 Pages – What You Actually Get

Let me be clear: this isn’t a repair manual. It’s a diagnostics manual focused on OBD-II readiness code charts. You get the safety section, introduction, generic road tests, then 50+ pages of VW and Audi-specific readiness charts. The index is functional – you can jump to your exact model. The pages are numbered consecutively, and the charts use the same formatting Snap-on uses in their scan tools. SSP 257 Electric Vacuum Pump for Brake Servo Unit is a separate document for that specific component, but if you need to know why the brake vacuum monitor won’t set, the readiness chart tells you the required vacuum level and duration. For the price of a single diagnostic session, you get the same data a dealership master tech carries.

Source Validity – OEM vs. Aftermarket Documentation

I don’t trust aftermarket manuals for readiness data. I’ve seen Chilton’s direct me to a 1988 GM drive cycle for a 2013 VW. This is a Snap-on publication, copyright 2013, with the part number EAZ0031B02A Rev. E. Snap-on licenses the data from the OEMs. The disclaimer on page 2 states the information is based on the latest available at time of printing, and they reserve the right to make changes. That’s how OEM documentation works – it’s a snapshot of factory engineering. If you need the absolute latest, call 1-800-424-7226 (the technical assistance number in the manual). But for 2013 models, this manual is as close as you’ll get to the factory binder without paying dealership rates. Automotive Industry Overview explains the regulatory context for OBD-II, and On-board Diagnostics (OBD) covers the standard. This manual applies that standard to VW/Audi specifically.

Does this manual cover engine removal or transmission overhaul?

No. It’s strictly a diagnostics manual for OBD-II readiness codes and road tests. You need a separate factory service manual for mechanical repairs.

What year models does it cover exactly?

2013 model year Volkswagen and Audi passenger cars and SUVs. The charts are specific to 2013, not a range.

Can I use this manual with any generic scan tool?

Yes, as long as your tool reads OBD-II PIDs. The manual gives the PID hex addresses and expected data – you don’t need a Snap-on tool. But the formatting matches Snap-on’s interface, which makes it easier if you use their products.

Why should I pay for this when I can find readiness code lists online?

Online lists are often for different model years or copied without verification. I once found a blog post titled “VW Readiness Codes” that listed the 2008 Jetta’s sequence as the same as a 2013 – those monitors are completely different because of the updated ECU firmware. The factory Snap-on manual is the same one used by dealership techs. It’s 114 pages of verified data. If you value your time and don’t want to fail an inspection because of a wrong drive cycle, buy the manual.

If you’re working on a 2013 VW or Audi and need the factory readiness code charts, this is the only source you should trust. No aftermarket compilation, no photocopy of a photocopy. 114 pages of OEM data from Snap-on. Get it on your bench, match the PID values to your scan tool, and clear that monitor in one drive cycle. Access the Factory Manual now.