Carrying out a system check of the telematics control module emergency battery

Precondition 

Negative battery cables are disconnected.

• Start the following test module:
  • "AT8400_SYSTEL2 - Check of telecommunications system"
• Run a system test.
• If necessary, remount and replace the emergency battery according to the test module instructions before installing the new telematics control module.

  Replacement  :

  Parts:  Emergency battery