Working on Injection and Ignition System

Working on Injection and Ignition System

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

• Individuals with a pacemaker must not stay in the danger area of high voltage systems, for example ignition system, xenon light.

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

• Turn off the ignition before disconnecting and connecting the wiring for the injection and ignition system. This includes tester cables as well.

• Only clean engine with ignition switched off.

• Disconnect the ignition coil connectors if the engine is supposed to be driven by the cranking speed so that the engine cannot start (for example, when performing a compression test). Refer to => [ Ignition Coils with Power Output Stages ] Service and Repair.

• Also, remove the fuse for the Fuel Pump (FP) control module (J538).

• If the connectors were disconnected and the engine was started, then malfunctions have been stored in the Engine Control Module (ECM) Diagnostic Trouble Code (DTC) memory.

Risk of destroying electronic components when disconnecting the battery.

• Observe measures for disconnecting battery.

• Only disconnect the battery with ignition turned off.

- Disconnect the battery.