Ducati Diavel
Free Service and Repair manuals

Ducati Diavel Service Manual: Exhaust by-pass valve not working correctly

Fault codes

Dds: exvl diagnosis -> position error, potentiometer, short circuit to ground or open circuit (s.C. Gnd or c.O.), Potentiometer short circuited to vdc (potentiometer s.C vdc).

Dashboard: the error "exvl" (exhaust bypass valve) is shown on the service display. The eobd warning light activates.

Wiring diagram

Exhaust by-pass valve not working correctly


M exhaust bypass valve motor with potentiometer s for position detection, bbs bbs unit connection. 10 Bbs black/blue - bk/b, 15 bbs brown/red - bn/r, 4 bbs yellow/blue - y/b, 18 bbs black/orange - bk/o, 19 bbs black/white - bk/w.

Location of connections and components

Location of connections and components


Exhaust bypass valve connection.

Exhaust by-pass valve not working correctly


The image shows the exhaust system. The oxygen sensor for the horizontal cylinder (1) is visible on the right, the oxygen sensor for the vertical cylinder (2) is on the left. The catalytic converter is contained within the silencer, while the by-pass valve is installed in the section of pipe connecting the silencer to the twin tailpipes. A metal cable, controlled by an actuator with electric motor and a position sensor, branches off from the exhaust bypass valve.

Exhaust by-pass valve not working correctly


Pin numbering of wiring harness side bbs unit connection

Stop light not working
Fault codes Dds: stop light diagnosis -> stop light error (generic stop light malfunction indication). Dashboard: the error "stop light" is shown on the service display. The eobd warning li ...

Diagnostic instruments
...

Other materials:

Removal of the steering head components
Note All parts fitted to the top and bottom yokes, including the wiring and control cables, can remain on the motorcycle provided they do not hinder the following operations. Loosen the screws (19) securing the supports (21) and (23) of splashguard (22) to the air conveyors (t). ...

Stored lap erase function
This function erases the stored laps. To access the function it is necessary to view the "setting" menu", using buttons (1) "s" or (2) "t" select the "lap" function and press the reset button (3) to enter the following page. Use button (1) "s" or (2) "t" to select "lap data" indication and ...

Reassembling the front footrest brackets
To remove the front rh footrest bracket (6) it is necessary to remove the rear brake master cylinder reservoir (by leaving it connected to the braking system), and the rear brake lever from the bracket (sect. 7 - 4, Removing of the rear brake control). To remove the front rh footrest bracke ...

2024 | www.dudiavel.com |