Volvo fault codes

Anyone give me help with volvo fault codes, coming up in vehicle system valve to low,air leakage,mid 144,psid 25 Fmi 1. Any ideas would be appreciated.

johnerf37:
Anyone give me help with volvo fault codes, coming up in vehicle system valve to low,air leakage,mid 144,psid 25 Fmi 1. Any ideas would be appreciated.

what category is it in,engine,transmission brakes, etc, whats the chassis number.

Chassis no is 563516.comes up in vehicle system.