Today after pulling hill in Southern California. Check engine fault came up. Went through all diagnostic screens looking for fault code. Found nothing. Any ideas
Typical quirky Volvo. Mine did the same thing today, popped one then disappeared as quickly. Occasionally check your ecm connections and battery connections and keep them clean, this helps some electrical issues.
Does your truck have remote diagnostics capability?? If it does, call the number and they'll tell you what codes have been tripped.... Very helpful !!