01 The Significance of Clean and Balanced Fuel Injectors • 02 Squealing Engine? Don't Panic! It Might Just Be Your Serpen… • 03 What Happens When a Pilot Misses the Landing on US Aircraft… • 04 Fill Up Less, Drive More: The Complete Guide to Saving Fuel… • 05 Your Tire Could Look Perfect And Still Explode — Here’s The… • 06 This Car Can Literally Park Itself In Spaces You Wouldn’t E… • 07 Toyota Noah vs Nissan Serena: A Comprehensive Comparison • 08 How Lane Assist Systems Keep You Safe • 09 Fuel Filter Warning Lights: Meaning and Taking Prompt Action • 10 Car Idling High After MAF Sensor Cleaning? Here's the Fix •

AV-SCANNER guides

Accessory guides

The testers and workshop tools worth owning, and how to use them. Each guide is free to read here and to download as a branded PDF for the workshop.

186Service functions
30IMMO and keys
69Accessories
ACC-161 · Diagnostic

OBD-II VCI Adapter

Choosing and using a vehicle communication interface

Intermediate 60 to 90 minutes PDF
ACC-162 · Diagnostic

Handheld Code Reader

Read and clear codes without a full scan tool

Intermediate 30 to 60 minutes PDF
ACC-163 · Diagnostic

Bidirectional Scan Tool

Command actuators and run service routines

Professional 60 to 120 minutes PDF
ACC-164 · Diagnostic

Digital Multimeter

Measure voltage, resistance and voltage drop correctly

Intermediate 45 to 90 minutes PDF
ACC-165 · Diagnostic

Automotive Test Light

Check power, ground and pulses quickly and safely

Intermediate 30 to 60 minutes PDF
ACC-166 · Diagnostic

Automotive Oscilloscope

Read sensor waveforms and catch intermittent faults

Intermediate 60 to 120 minutes PDF
ACC-167 · Diagnostic

Inspection Videoscope

See inside cylinders and behind panels

Intermediate 30 to 60 minutes PDF
ACC-168 · Diagnostic

Smoke Machine

Find vacuum and EVAP leaks fast

Intermediate 30 to 90 minutes PDF
ACC-169 · Diagnostic

Infrared Thermometer

Compare temperatures to find failing components

Intermediate 30 to 60 minutes PDF
ACC-170 · Diagnostic

Bluetooth OBD-II Adapter

Choose one and use it safely with a phone

Intermediate 45 to 90 minutes PDF
ACC-171 · Diagnostic

Noid Light Set

Check injector pulses quickly

Intermediate 30 to 60 minutes PDF
ACC-172 · Diagnostic

Back-Probe Pin Kit

Test live connectors without damaging them

Intermediate 30 to 60 minutes PDF
ACC-173 · Diagnostic

Breakout Box and OBD Tester

Check the diagnostic port and its pins

Intermediate 45 to 90 minutes PDF
ACC-174 · Diagnostic

Stethoscope for Mechanics

Find bearing, valve and injector noises

Intermediate 30 to 60 minutes PDF
ACC-175 · Diagnostic

Thermal Imaging Camera

Spot misfires, drains and overheating parts

Intermediate 45 to 90 minutes PDF
ACC-176 · Diagnostic

Current Clamp

Measure current without breaking the circuit

Intermediate 45 to 90 minutes PDF
ACC-177 · Diagnostic

Pressure Transducer

See pressure as a waveform on a scope

Professional 45 to 90 minutes PDF
ACC-269 · Diagnostic

Vacuum Pump Tester

Test vacuum actuators and bleed systems

Intermediate 45 to 90 minutes PDF
ACC-270 · Diagnostic

Compression Sensor for Oscilloscope

Read cranking compression without removing plugs

Intermediate 45 to 90 minutes PDF
ACC-271 · Diagnostic

Endoscope Attachment for Phones

Choose a phone endoscope and use it well

Intermediate 30 to 60 minutes PDF
ACC-272 · Diagnostic

Ignition Coil Tester

Test coils quickly on the vehicle

Intermediate 30 to 60 minutes PDF

Use them with the AV-SCANNER

Look up a fault code, run a local diagnosis and open the right guide from the reader's own menus.

Open the AV-SCANNER
Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage