Exhaust brake (V17/V107)
â–¶ How to fix
Check the wiring / connector to the valve block ( the resistance over the valve should be between 20 and 60 ohms) Replace the component (V17/V107)
What you'll see
No driver-visible symptom recorded.
System reaction
Yellow warning lamp The exhaust brake will be fully closed, which can lead to hard braking on the driving wheels ( risk for skiding) No particulate filter regeneration will be performed. Can lead to a blocked DPF Poor engine performance / misfire / increase fuel consumption Can lead to a deterioration in gear shift quality
Diagnostic depth
Detection
S8 indicates a short circuit to 24V on pin A3-10 - exhaust brake valve (V17/V107)
Possible cause
Short circuit to 24V on pin A3-10