Hello
I have a Volvo FMX520 truck showing air system malfunction, TECU fault...P107538 and TP-HD gearbox software package. When you start the truck the air system malfunction illuminates on the dashboard. If you select to A it shows on the dashboard that the gear is selected but the accelerator malfunction...the truck loses acceleration and the truck doesn't move even when idling. What could be the problem and what steps can I take to rectify the problem?
Volvo FMX 520 air system malfunction and gear engagement problem
Discussion in 'Volvo Forum' started by Tunga, Mar 11, 2020.