Ignition System: Service Precautions

Safety Precautions

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

• Test and measuring equipment must always be secured to the rear seat and be operated from there by a second person.

• If the vehicle is involved in a collision while testing and measuring equipment is operated from the front passenger seat, the person sitting in that seat could be seriously injured when the airbag deploys.

To reduce the risk of personal injury and/or damage to the fuel injection and ignition system, always observe the following:

• Do not touch or remove ignition wires when engine is running or turning at starter speed.

• Always switch ignition off before disconnecting or reconnecting wires for the ignition system, including high voltage wiring and test leads.

• If the engine is to be cranked at starting RPM without starting (for example for compression testing), disconnect connectors from ignition coils and from fuel injectors. After performing work, check and erase DTC memory.

• Cleaning the engine should only be performed with ignition switched off.