2044536-5

Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Bentayga deployable sill step malfunction
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2044536/5
EH
Approval
New customer code
Object of complaint
Complaint type
whole vehicle -> accessories -> sill tube
body fixtures and fittings -> special vehicles: equipment -> entry step for door aperture
component / consumables -> cracked/broken
functionality -> defective function sequence
Position
New workshop code
Object of complaint
body fixtures and fittings -> special vehicles: equipment -> entry step for door aperture
body fixtures and fittings -> special vehicles: equipment -> entry step for door aperture
body fixtures and fittings -> special vehicles: equipment -> entry step for door aperture
body fixtures and fittings -> special vehicles: equipment -> entry step for door aperture
Vehicle data
Bentayga
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1* 2017 E
4V1* 2018 E
Documents
Document name
master.xml
led-diagnostic.pdf
*
*
*
*
*
*
Complaint type
component / consumables -> deformed
component / consumables -> deformed
component / consumables -> deformed
component / consumables -> deformed
Position
front left
rear left
front right
rear right
Technical product information
Bentayga deployable sill step malfunction
Transaction No.: 2044536/5
Customer statement / workshop findings
Deployable sill step accessory malfunctions.
Technical background
This TPI is specifically written to record key information, reach a logical diagnosis and ultimately a problem resolution when presented with a deployable
sillstep malfunction. Please report via DISS all findings during your investigation and rectification process.
Production change
.
Measure
When presented with a deployable sill step malfunction the following should be incorporated into your diagnosis procedure.
Perform checks 1-10 and record results, this should be done prior to carrying out any rectification work.
Note: The following checks are the minimum information required when submitting any DISS query.
Raising a DISS query is mandatory for sillstep concerns.
Record the current status of the system.
1. Detail of existing or reported failure mode, please also try to obtain information of the failure from the customer (Did the step try to stow? Where
was the vehicle? Was the ground level? Was the door fully closed? Etc.)
•
No function
•
Fails to stow: left side / right side / both
•
Fails to deploy: Left side / right side / both
•
Noise or rough action
•
Rattle
•
Incomplete stow (drop / loose at centre linkage)
•
Other
2. Quantify the level of grit and road debris in or on the hinge systems with a description and Photographs of all hinges.
3. Note any mechanical damage, supply Photographs if damage is present.
4. Security of system, is everything correctly secured? Over-check fastener torque of hinges, motor and steps.
Note: Refer to Repair Group 66 - Exterior equipment – Accessories – Deployable sill steps – to fit, for current torque figures.
Description
Size
Torque
Sill step to hinge
M8 x 25mm
22 Nm
Hinge to body
M8 x various
14 Nm
Rear hinge bolt through body brace
M10 x 35mm
49 Nm
Drive motor to centre hinge
M6 x 10mm
8 Nm
Drive spindle wedge key centre hinge
M6
12 Nm
5. Measure electrical current draw at motors.
•
During deployment – attach Photograph showing result on meter.
•
During stow – attach Photograph showing result on meter.
6. Remove both sillstep motors and measure the deployment resistance – figure 1 - Refer to Repair Group 66 - Exterior equipment – Accessories –
Deployable sill steps – to fit.Video the procedure and provide results.
Figure 1
7. Confirm installation process, provide Six Photographs showing hinge fitment to sills.
8. Log positon of all shims, Photograph.
9. Check and record Sill Step Control Module audible fault and LED blink codes (see attached document)
10. Check vehicle battery condition using battery tester VAS 6161 or similar Bentley approved tool, refer to Repair Group 27 – Measure and record
charging voltage.
ASG Step Motor Controller
LED Diagnostics V0.93 – 0.95 28th Jan 2018 Copyright ASG Limited
Controller Status
LED Response
Connection to power is made or Feature Mode 4
(Reset) is selected.
RED LED Flashes 3 times (200 mS Duty Cycle).
CAN Activity / Pre Sleep
GREEN / RED LED's alternate (500 ms Duty Cycle).
No step operation, active over ride modes or faults
CAN activity is detected or Vehicle CAN has
terminated (pre sleep)
Pre Sleep While Operations Timer Depleting
GREEN / RED LED's alternate (250 ms Duty Cycle).
No step operation, active over ride modes or faults
Vehicle CAN has terminated (pre sleep) and the Over
Work counter is timing down.
No LED activity.
System is asleep or power is disconnected.
System reset completed.
Normal Operation
Left Step Deploying
RED LED Illuminated
Left Step Stowing
RED LED Flashes (100 mS Duty Cycle)
Right Step Deploying
GREEN LED Illuminated
Right Step Stowing
GREEN LED Flashes (100 mS Duty Cycle)
Fault & Over Ride Codes
Start Of Code Reporting
GREEN LED Flashes x 3 (300 mS Duty Cycle / Off
Time)
2 S Pause prior to code reporting
Fault Code Format
RED LED Flash (300 mS Duty Cycle / S)
Over Current Detected
x1
Over Working Inhibit
x2
Cleaning Mode
x3
Off Road Mode
x4
ASG Step Motor Controller
LED Diagnostics V0.93 – 0.95 28th Jan 2018 Copyright ASG Limited
Battery Guard Mode / Low Voltage Inhibit
x5
Ambient Temperature Inhibit
x6
Transport Mode
x7
Service Mode
x8
Critical Failure Due To Over Current / Jammed
x9
Suspension Low Inhibit
x 10
Critical Failure - Operation Cycle Time Exceeded
x 11
The code reporting procedure detailed above is
displayed via the Green and Red LED’s that are visible
through the clear lens on the top face of the control
module. If Feature Mode 3 (Code Recall) is selected,
an audible tone accompanies each LED flash and the
last stored code is repeated 3 times before the mode is
exited.
If Code Recall is selected and no code is stored, the
Green LED flashes 3 times and 3 sounder tones are
produced. The feature mode is then automatically
exited (10 short sounder tones are issued) and normal
operation resumes.
If the module power is reset (power disconnection for
10 seconds) or Feature Mode 4 (Reset) is selected,
the code memory is cleared.