Manufacturer Code Charts: 1993

The control line for emergency operation of control unit A80 (Intelligent servo module for DIRECT SELECT) is permanently energized.


Possible cause:

- Faulty current feed to electrical line for emergency operation of component A80 (Intelligent servo module for DIRECT SELECT)
Affected functions:

- Drive position selection

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Test 1: The control line for emergency operation of control unit A80 (Intelligent servo module for DIRECT SELECT) is permanently energized.

1. The control line for emergency operation of control unit A80 (Intelligent servo module for DIRECT SELECT) is permanently energized.
Operation number of operation texts and work units or standard texts and flat rates:27-0641Test sequence

- Switch off ignition.
- Separate plug connection A at control unit N73 (EIS [EZS] control unit).
- Disconnect connector at component A80 (Intelligent servo module for DIRECT SELECT).
Measurement 1

- Test the following cables for Open circuit:
- (N73) A.Measure resistance with multimeter between sockets 2 and 3 (A80)
Specified value

- Resistor< 5ohms
Measurement 2

- Test the following cables for Short circuit:
- Measure resistance with multimeter between ground and socket (N73) A.2
- Measure resistance with multimeter between positive and socket (N73) A.2
Specified value

- Resistor> 20kohms
Question

- Are the measurement values OK?


YES
The measurement value is OK.Possible cause and remedy

- Inspect connector A at control unit N73 (EIS [EZS] control unit) for damage, correct connection, loose contact and corrosion and repair, if necessary.
- Inspect connector at component A80 (Intelligent servo module for DIRECT SELECT) for damage, loose contacts and corrosion, repair if necessary.
End of test

NO
The measurement values are not OK.Possible cause and remedy

- Line between component 'A80 (Intelligent servo module for DIRECT SELECT)' and control unit N73 (EIS [EZS] control unit) faulty
End of test