Ducati Diavel
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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
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Other materials:

Replacing the battery in the active key
Only use 3 volt cr 2032 lithium ion batteries. Note The keys do not need to be reprogrammed after replacing the battery. Remove the metal part of the battery. Use a large sized coin to pry open the shells of the plastic grip (2? coin) as shown in fig. 65. Important Insert the coil on ...

Electric system
Basic electric items are: headlight: low beam bulb type: 1xh7 blue vision (12v-55w); high beam bulb type: 1xh1 (12v-55w); parking light: led (12v-2.4W). Electrical controls on handlebars. Turn indicators: front: led (13.5V-2.9W). Horn. Brake light switches. Sealed battery, 12v-10 ...

Key-on/key-off using the key on the hands free lock with the passive key
Key-on can be performed by pressing the button (7) on the hands free lock and with the presence of the passive key (4, fig. 77). Note The passive key (4, fig. 77) Has a range of a few cm, therefore the key (4, fig. 77) Must be positioned near the antenna (2). Remove the seat (see "remova ...

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