20465453

Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Bentayga - Bentley dynamic ride system fault - warning
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2046545/3
EH
Approval
New customer code
Object of complaint
Complaint type
Position
running gear -> shock absorber/suspension control -> roll compensation functionality -> without function / defect
New workshop code
Object of complaint
Complaint type
running gear -> actuation, dynamics and braking controls -> control unit for anti-roll bar decoupling
functionality -> faulty
Vehicle data
Bentayga
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1* 2017 E
*
*
*
Documents
Document name
master.xml
master.doc
Position
Technical product information
Bentayga - Bentley dynamic ride system fault - warning
Transaction No.: 2046545/3
Customer statement / workshop findings
“Bentley dynamic ride system fault” displayed on Driver Instrument Panel.
Technical background
Diagnostic Trouble Codes (DTC’s) stored in Electronic Control Modules (ECM) 00D4 Roll Control System 1 (Front Axle) and 00D5 Roll Control
System 2 (Rear Axle)
C124E00: “48V System Fault active”
C129600: “Sway stabilisation control module”
B200FFE: “Internal Malfunction”
Production change
.
Measure
With reference to Electronic Control Modules:
00D4 Roll Control System 1 (Front Axle)
00D5 Roll Control System 2 (Rear Axle)
In the event that DTC’s C124E00 or C129600 are stored in either of the two Roll Control System ECM’s, and the opposing Roll Control System
ECM has DTC B200FFE stored, the DTC B200FFE should be ignored, any investigative action should focus on the ECM with fault codes C124E00 or
C129600.
C124E00: “48V System Fault active” –– Symptom 13636352.
C129600: “Sway stabilisation control module” – Symptom 12681232.
B200FFE: “Internal Malfunction”
For example - If ECM 00D4 Roll Control System 1 (Front Axle) contains DTC B200FFE and 00D5 Roll Control System 2 (Rear Axle)
contains one or both of the two DTC’s C124E00 or C129600, the Diagnostic Trouble Code contained within 00D4 should be ignored and any
investigation should focus on 00D5, and vice versa
Note: If a different “Symptom” number is displayed within the fault code this Technical Product Information document is not
applicable, in this instance please raise a DISS query and attach a diagnostic log showing the specific fault code and “Symptom”
number – figure 1.
Figure 1
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Work
Check the integrity of the 48V connector of the affected Electronic Control Unit, if no abnormality is found with the wiring or connector then continue
to replace the affected Electronic Control Unit.