Operation CHARM: Car repair manuals for everyone.

Vehicle Damage Warnings



Safety Measures

^ The electronic control modules (ECM) fitted to vehicles make it advisable to follow suitable precautions prior to carrying out welding repair operations. Harsh conditions of heat and vibration may be generated during these operations which could cause damage to the modules. In particular, it is essential to follow the appropriate precautions when disconnecting or removing the airbag RCM.
^ Do not allow electronic modules or lines to come into contact with the ground connection or the welding electrode.
^ Seat belt anchorages are a safety critical. When making repairs in these areas, it is essential to follow design specifications. Note that extra strength low alloy steel may be used for seat belt anchorages. Where possible, the original production assembly should be used, complete with its seat belt anchorages, or the cut line should be so arranged that the original seat belt anchorage is not disturbed.
^ All welds within 250 mm (9.842) of seat belt anchorages must be carefully checked for weld quality, including spacing of spot welds.
^ Remove the battery before carrying out welding work in its vicinity.
^ Utmost care must be taken when welding near the fuel tank or other components that contain fuel. If the tank filler neck or a fuel line must be detached to allow access for welding work, then the fuel tank must be drained and removed.
^ Never weld, on components of a filled air conditioning system. The same applies if there is a risk of the air conditioning system heating up.
^ Connect the ground connection of the electrical welder directly to the part that is to be welded. Ensure that there are no electrically insulating parts between the ground connection and the welding point.
^ Adjacent vehicle parts and adjacent vehicles must be shielded against flying sparks and heat.