Technician Safety Information

To avoid personal injury and/or damage to the vehicle fuel injection and ignition systems, the following must be observed:
- DO NOT touch or disconnect ignition system wires when the engine is running or being cranked at starting RPM.
- Only connect and disconnect high voltage and tester wires with the ignition switched off.
- If the engine is to be cranked at starting RPM without starting the engine (e.g. compression test), disconnect connectors for the ignition coils and from the fuel injectors. After completing work, check and erase DTC memory.
- Washing the engine or engine compartment is only to be performed with then ignition switched off.
- Disconnecting and connecting battery may only be done with the ignition switched off, since the engine control module could otherwise be damaged.

If special testing equipment is required during road test, note the following:


WARNING!
- Due to weight, size and need for manual operation of test instruments while vehicle is driven on public roads, instrument must be used only with a Driver operating the vehicle and an Instrument Operator operating the test equipment.
- Do not use Instrument with Driver only. Always use two persons to conduct test.
- Do not place Instrument on lap of Driver or front seat passenger because emergency stop may dislodge Instrument and cause airbag deployment with risk of injury to Instrument Operator.

Use of Instrument in Audi TT Coupe:
- Place Instrument in rear seating area and secure by available safety belt.
- Instrument Operator must be seated in the other rear seating position, after sliding front passenger seat and moving the seat back as far forward as possible. Do not activate the seat back release lever.
- Instrument Operator must wear safety belt.

Use of Instrument in Audi TT Roadster:
- Use only Instrument VAG 1551 Scan Tool (ST). DO NOT USE VAS 5051.
- Before test, deactivate passenger's airbag using key operated switch in glove compartment or via OBD program.
- Instrument Operator must be seated on passenger seat with safety belt worn.
- Place Instrument in foot well in front of passenger seat in a manner allowing the Operator to use the Instrument in a safe manner.
- After completion of test, re-activate front passenger airbag.