5A59 - P2854 (EGS)

5A59 - P2854

Information saved in
GS

Fault code
5A59 - P2854

Fault text
DKG: Cut-off path 1: cut-off valve 1 does not switch to tank

Fault description
Clutch 'B' Pressure Discharge Performance

Condition for fault identification
Test condition:
Terminal condition: Terminal 15 ON
Voltage condition:
UBat > 10V

Condition for fault memory entry
none

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

Fault effect and breakdown warning
none

Driver information
Warning light:
ID 365/ 'Transmission malfunction! Drive gently'
Limp-home mode:
Gears R, 1, 3, 5 and 7 no longer available (clutch circuit 1
disabled)

Service instruction
none