volvo 780 i-shift gear selector ECU

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Gearshift selector ecu 2015 Volvo can fault

 

Same issue here, maintenance required. gearselector ECU in addition to low transmission air supply and neutral secure not detected.

 

Inspect the harness connecter after the shifter harness that comes up from under the floor. It should be tucked away behind drivers seat or around the seat base. It is prone to moisture and corrosion and can mess with the neutral safety switch stuff as well as others I'd imagine.

Every once in a while mine wont go into gear and throw neutral secure messages, Ill take apart the plug and clean er up and problem goes away.