Computers and Control Systems: Service and Repair

Replacing Control Unit For Electric Catalytic Converter (M73)

Switch off ignition.
Disconnect battery.
Disconnect and cover both negative leads from batteries.

NOTE:
Remove and install passenger seat,
Remove inner entrance cover strip, front right.
Remove finisher on A-pillar, bottom right.







Lift floor carpet at front and rear and lay to one side.
Lift out expansion rivet (1). Raise air duct a little.
Disconnect plug connections on control unit (3).
Release screws (2).
Remove control unit (3).