Report: Engine will not start - Electronic Control Module problem.
Volvo XC90 Problem
Model Year Affected: 2004
Engine Affected: 2.9L 6 Cylinder Turbo
On several occasions the car would not start. When the key was turned nothing would happen. Car was towed 3 times. First time they stated it was the starter motor. Second time new battery. Third time it was the electronic control module that needed replacememt. A common problem as I under. I believe that all 3 times it was the ECM. Water leakage can get into the unit via a poorly designed rubber grommet (seal). Only the Volvo dealerhip can replace/programme the unit. Cost to replace $1250 (excluding towing and preliminary diagnosis etc.)not covered by Volvo. Whole repair was about $1500 in the end. On the plus side the mileage went up by almost 4 mpg. (by the way, if you are handy and your starter needs replacing its a very easy since its located at the upper front of the engine.)