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01-194
Evaluating display group 4, display zone 2 - control module voltage supply Appears on display Possible cause Corrective action Less than specified Alternator faulty, battery charge state low
Repair Manual, Electrical Equipment; Repair Group 27
- Check alternator and
Battery heavily loaded shortly after starting due to high charging current - Increase revs slightly for a
Transfer resistance in current supply or the Motronic Engine Control - Check Motronic Engine
Page 24- 163
Current draw when ignition is off - Eliminate current draw Greater than specified Voltage control on alternator faulty
Repair Manual, Electrical Equipment; Repair Group 27
- Check voltage control,
Excess voltage due to slave starting or quick charging unit - Check DTC memory
Page 01-23 , DTC memory, checking and erasing Measured value (data) blocks |