SRV-SRB-21-013

Rideability Complaints
All Models
Service Repair Bulletin SRV-SRB-21-013
Date:
To:
From:
February 23, 2021
Dealer Principal, General Manager, Service Manager, North American Dealer
Network
Richard Kenton, Technical Director
Eric Bradley, Technical Training and Publications Manager
Dear Dealers,
This bulletin is to assist you in collecting detailed information about any rideability complaints
that may be reported on models equipped with a 4-cylinder engine.
A rideability complaint can have many causes, many of which are often not correctly
diagnosed or not investigated in depth.
In addition to the engine calibration, a number of components can be affected, including:
fuel, fuel pump, brake and/or clutch switch, DQS, gear sensor, side stand sensor, RUN/STOP,
lambda sensors, coils and spark plugs, MAP circuit, AIS circuit, injectors, engine timing, air
infiltration in the intake/exhaust manifolds, etc.
To provide the required Youtech information, complete the instructions and questions below
regarding:
• Operations to be carried out in the Workshop
• Information to be requested directly from the Customer
Complete a YouTech service request and attach the completed document
(the .pdf file is editable).
Ducati North America
www.ducati.com
1292 Reamwood Ave.
Sunnyvale CA, 94089
Tel +1 650 933 9899
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Rideability Complaints
All Models
Service Repair Bulletin SRV-SRB-21-013
Preliminary operations to be carried out in the workshop
1. Connect the bike to the diagnosis instrument and run a Global Scan:
a) Are there any errors?
󠄶 If yes, using the diagnosis instrument, generate the .pdf file of the Global Scan with
the errors and the relevant frame parameters (so called freeze frames)
󠄶 No
b) Is an engine calibration update available?
󠄶 If yes, please download it and test the bike again
󠄶 No
NOTE
After an engine calibration update, always perform two warm-up cycles (from cold
engine to fan activation), with the engine at idle. In addition, check that the air flow
rates between the cylinders of the same bank and between the banks are balanced
(deviations of approximately 5 – 10 mg/tdc are permitted depending on the model).
If the flow rates are not balanced, from the “SETTINGS” section of the DDS Engine
Control Unit diagnosis, adjust the throttles at idle.
Information to be requested from the Customer
1) Indicative engine coolant temperature at which the problem occurred:
______[°C]
______[°F]
2) Indicative outside temperature at which the problem occurred:
______[°C]
______[°F]
3) Check the correct box:
󠄶 Clutch lever fully pulled
󠄶 Clutch lever partially pulled (in the MTS V4 there are in fact 2 clutch switches)
󠄶 Clutch lever fully released
NOTE
With DQS active (from the instrument panel), it is not recommended to use the clutch.
With clutch fully pulled the strategy is inhibited.
Ducati North America
www.ducati.com
1292 Reamwood Ave.
Sunnyvale CA, 94089
Tel +1 650 933 9899
2/5
Rideability Complaints
All Models
Service Repair Bulletin SRV-SRB-21-013
4) Check the correct box:
󠄶 While UPSHIFTING without DQS
󠄶 While UPSHIFTING with DQS
󠄶 While DOWNSHIFTING without DQS
󠄶 While DOWNSHIFTING with DQS
󠄶 No gear shift was taking place
5) Indicate in which gear the problem occurred or in which gear shift (e.g. from 3rd to 2nd
gear):
______________________________________________________________________
6) Indicate at what approximate engine rpm the problem occurred:
______________________________________________________________________
7) Indicate the approximate position of the accelerator:
󠄶 Fully released
󠄶 Partially open
󠄶 Fully open throttle (full gas)
NOTE
With DQS active (from the instrument panel), blipping is not recommended.
8) Check the correct box:
󠄶 While slowing down/during deceleration due to vehicle stop (traffic lights, STOP, etc.);
󠄶 When slowing down/decelerating;
󠄶 During acceleration.
9) Was the brake being applied?
󠄶 Yes
󠄶 No
10)Can the customer replicate the problem?
󠄶 Yes
󠄶 No
11) Is the problem present even with DQS disabled (from the instrument panel)?
󠄶 Yes
󠄶 No
Ducati North America
www.ducati.com
1292 Reamwood Ave.
Sunnyvale CA, 94089
Tel +1 650 933 9899
3/5
Rideability Complaints
All Models
Service Repair Bulletin SRV-SRB-21-013
12) Are there any activated warning lights on the instrument panel?
󠄶 If yes, specify: _________________________________________________________
󠄶 No
13) Additional notes on the condition of the event, as stated by the Customer:
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
Operations to be carried out in the workshop
1) Can the Dealer replicate the problem?
󠄶 Yes
󠄶 No
2) With the engine off, from the STATUS section of the engine control unit diagnosis, check
that the clutch switch or switches are working correctly.
NOTE
On the Multistrada V4 there are 2 clutch switches; the STATUS of the clutch switch read
in the engine control unit can assume the values of:
• not pressed
• partially pressed
• fully pressed
• in error
3) Wait for engine temperature to be < 60 °C (176 °F).
From the “SETTINGS” section of the DDS Engine Control Unit diagnosis, perform the
throttle adjustment at idle.
4) Wait for engine temperature to be < 60 °C (176 °F).
From the “SETTINGS” section of the Engine Control Unit diagnosis, activate the AIS
secondary air system report the values:
• Cylinder 1: ____________________________________________________________
• Cylinder 2: ___________________________________________________________
• Cylinder 3: ___________________________________________________________
• Cylinder 4: ____________________________________________________________
Ducati North America
www.ducati.com
1292 Reamwood Ave.
Sunnyvale CA, 94089
Tel +1 650 933 9899
4/5
Rideability Complaints
All Models
Service Repair Bulletin SRV-SRB-21-013
5) Wait 1 minute after starting the engine and, with the engine at idle, write down the values
of the fuel A/F adaptive parameters (offset):
• Cylinder 1 ____________________________________________________________
[indicatively the value should be within the range ± 0.5 mg/tdc].
• Cylinder 2 ____________________________________________________________
[indicatively the value should be within the range ± 0.5 mg/tdc].
• Cylinder 3 ____________________________________________________________
[indicatively the value should be within the range ± 0.5 mg/tdc].
• Cylinder 4 ____________________________________________________________
[indicatively the value should be within the range ± 0.5 mg/tdc].
For questions about this Service Bulletin,
please contact your Service Area Manager.
Ducati North America
www.ducati.com
1292 Reamwood Ave.
Sunnyvale CA, 94089
Tel +1 650 933 9899
5/5