Ignition System: Service Precautions

Safety Precautions

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

CAUTION!
Distraction and improperly secured test equipment can lead to accidents.

There is a risk that the passenger airbag could deploy in a collision.

• Operating testing and measuring equipment while driving creates a distraction.

• There is an increased risk of injury due to unsecured testing and measuring equipment.

• Always secure testers on the rear seat with a strap and have a second person on the rear seat operate them.

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 engine is to be cranked at starting RPM without starting, disconnect the connectors from the ignition coils and fuel injectors. After performing work, check and erase DTC memory.

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

• The battery must only be disconnected and connected with the ignition is switched off, since the Engine Control Module (ECM) can otherwise be damaged.