Thanks for the replies- Doors always lock/unlock manually; during warm/hot weather the power mechanisms don't work with either the keyfob or the armrest lock switch. The power windows always work fine suggesting it is not a grounding problem. I understand the actuator assembly is a common failure bu...

Hey everybody! I am having a long-standing problem with the power door locks on my 1999 S70 GLT for the past 3 years, both with use of the door switch and the keyfob. ONLY IN WARM/HOT WEATHER the power door locks, especially the driver's, incompletely lock or unlock. The locking mechanism motor can ...