Ignition System: Description and Operation

Ignition System, General Information

• Ignition must be switched off when disconnecting the battery. Obtain radio code for radios with anti-theft coding before disconnecting battery.

• Observe required safety precautions after connecting battery => Disconnecting and connecting battery.

• For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary.

• To conclude work, check DTC memory of Engine Control Module (ECM), erase all DTC entries which may have occurred during the tests and repairs. If DTC memory was erased, generate readiness code " Guided Function".

• If the engine only starts briefly and then turns off again after troubleshooting, repair or checking of the components, it may be that the immobilizer is blocking the Engine Control Module (ECM). Control module must then be adapted if necessary " Guided Functions".