1. • E1902

     The supply voltage of component A80 (Intelligent servo module for DIRECT SELECT) is too high (overvoltage).

     
     

     Possible cause:

     
     
   • A80 (Intelligent servo module for DIRECT SELECT)

     Affected functions:

     
     
   • Battery / On-board electrical system

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Test 1: Check alternator.

1. Check alternator.

   Note on alternator testDepending on the engine variant, different alternators are installed.
   
   
   • Alternators without networking
   • Alternators networked with engine control unit

Networked alternators can be diagnosed via the engine control unit.Detailed information on alternator testing can be found in WIS.Press button F2 to go to WIS documents

1. No further information available.