Volvo Maintenance FAQ for 7xx/9xx/90 Cars                                                                                                                     Version 5.0

The 900 series uses a totally different lock motor system than the 700 series.  Finding parts proved impossible, so a 700 series motor and passenger side linkage was substituted.  You may also use a 200 series motor, but linkage does not work as well.  The swivel and linkage were used, but the metal cage normally used to attach to the door was discarded.  The holes in the motor, which normally hold screws fastening the cage were bored out, so that metal screws could fasten the motor to the door.  Note picture 1. The plastic swivel was mounted on the inside corner of the door.  See picture.  One linkage rod was run to the motor...the other to the lock switch.  Linkage was bent for best fit.  The two motor wires were routed through the door with the other door wiring through a piece of shrink wrap.  Note picture 2.  The shrink wrap was used because there was not room in the factory conduit.  Wires were attached in the area of the left kick panel.  Wiring of the motor was reversed because of the reversed position of the lock motor.  Note approximate position of wires and controller in picture 3. Comment:  My wife likes it!