Manufacturer Code Charts: 1978

Faulty actuation of component A80 (Intelligent servo module for DIRECT SELECT) by component N73 (EIS [EZS] control unit)


Possible cause:

- A80 (Intelligent servo module for DIRECT SELECT)
Affected functions:

- Drive position selection

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Test 1: Remedial action in the event of a fault in the internal mechanical systems of component A80 (Intelligent servo module for DIRECT SELECT)

1. Remedial action in the event of a fault in the internal mechanical systems of component A80 (Intelligent servo module for DIRECT SELECT)
Operation number of operation texts and work units or standard texts and flat rates:27-0641NOTE

- The following tests are to be performed in succession
- If this fault code is currently displayed, the desired change of drive mode may not be performed when the selector lever is actuated.In this case, move the selector lever to position "D" and hold until the following actual value display has changed.
Test sequence

- Depress brake pedal fully and hold.
- Use the selector lever to engage drive positions R, N and D in succession.
Status of relevant actual value:'Shift lock' function
- 'Shift lock' function:Warning!
Selector lever position
- Current position of actuator motor ISM:Warning!
Question

- Are the listed actual values correctly displayed?


YES
Preconditions

- The listed actual values are correctly displayed.
Possible cause and remedy

- No additional tests are necessary.
- Erase fault memory in control unit ISM
End of test

NO
Preconditions

- The listed actual values are not correctly displayed.
Further procedure

- Perform actuation 'Driving position'.
Continue with button "F2"

Test prerequisite

- Engine OFF
- Apply and hold the brakes.
Continue with button "F2"

Warning!Communication with ECU required.