Ignition System
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- The ignition must be turned off when disconnecting the battery. Obtain the radio code for radios with a anti-theft code before disconnecting the battery.
- Observe the required safety precautions after connecting the battery, refer to Removal and Installation .
- For trouble free operation of the electrical components a voltage of at least 11.5 volts is necessary.
- To complete the procedure, check the Engine Control Module -J623- Diagnostic Trouble Code (DTC) memory and erase any DTCs that may have been stored when testing and making repairs. Generate a readiness code if the DTC memory was erased, refer to "Guided Functions" in the vehicle diagnostic tester.
- If the engine only starts briefly and then turns off again after troubleshooting, repairs or checking of the components, it may be that the immobilizer is blocking the Engine Control Module -J623-. The Engine Control Module -J623- must then be adapted as necessary, refer to "Guided Functions" in the vehicle diagnostic tester.