The measurement value is OK.Cause
- Control module has an internal error.
REMEDY
- Disassemble and assemble automatic transmission using the repair instructions.
- Exchange electrohydraulic control unit.
IMPORTANT NOTEFollowing the repair measures, the following checks MUST be carried out using the Diagnosis Assistance System, menu
'Control unit adaptations'
- Flash programming of control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit)
- SCN coding
End of test
NO
The measurement value is not OK.Possible cause and remedy
- Diagnostic cable has short to ground.
- Inspect wiring and connectors at connection points for loose contacts, damage and corrosion. Repair or replace as required.
End of test
NO
The measurement value is not OK.Possible cause and remedy
- Diagnostic cable has open circuit.
- Inspect wiring and connectors at connection points for loose contacts, damage and corrosion. Repair or replace as required.
End of test
NO
The measurement value is not OK.Further causes
- Voltage supply line is not OK.
Press button "F2" for further tests
1.1.3.2.1.10. No further information available.
1.1.3.2.1.11. Check power supply at control unit N51 (AIRmatic with ADS control module).
Test 1.1.3.2.1.11.1: Test voltage supply of circuit 30.
Test 1.1.3.2.1.11.2: Test voltage supply of circuit 87.
1.1.3.2.1.11.1. Test voltage supply of circuit 30.
Test 1.1.3.2.1.11.1.1: Test voltage of terminal 30 at control unit N51 (AIRmatic with ADS control module).
Test 1.1.3.2.1.11.1.2: Test of cable for voltage supply
Test 1.1.3.2.1.11.1.3: Test procedure ground cable
1.1.3.2.1.11.1.1. Test voltage of terminal 30 at control unit N51 (AIRmatic with ADS control module).
Test prerequisite
- Battery voltage is OK.
Status of the relevant actual values:
- Terminal 30:Warning! Communication with ECU required.
Test sequence
- Switch off ignition.
- Connect socket box.
- Switch on ignition.
- Measure direct voltage with multimeter between sockets (2.21) 55 and (2.47) 81 of the 126-pole socket box tester.
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