Action in service

Precondition: Both transmission units in neutral, engine running

1st step: Check deactivation path for clutch 1:

Test routine 'Test_CutOff_K1_02 '

1st step: Case 1: Pressure level remains constant in clutch 1 2nd step: Shift valve defective

=> Replace mechatronic module

1st step: Case 2: No pressure in clutch 1 2nd step: => PV1, Check 0 position:

Test routine 'Test_PV1-0_02 '

2nd step: Case 1: Pressure < 1.8 bar in clutch 1 3rd step: => Delete diagnostic fault code

2nd step: Case 2: Pressure >= 1.8 bar in clutch 1 3rd step: Defective control valve

=> Replace mechatronic module