Electrical - Various Electrical Door Malfunctions: Overview
NO: 36-60DATE: 10-26-2007
MODEL: S40, V50, C70
M. YEAR: 2006
SUBJECT:
Replacement of A-pillar Connectors
REFERENCE:
TNN 37-40, VIDA
COMPETENCE:
Master or Expert rated technician ONLY
IMPORTANT:
Please read the entire document before starting any work.
DESCRIPTION:
Customers in S40, V50 and C70 vehicles may report that some electrical door functions do not operate correctly under certain conditions. Customer symptoms may be associated with power mirrors, power windows, central locking, retractable hardtop operation, approach lighting and/or incorrect reading from the ambient temperature indication in the DIM.
The root cause of these (intermittent) symptoms has been found to be fretting corrosion on the terminals in the A-pillar connector. (Fretting corrosion is caused by the microscopic movement of two contact points, eventually causing an oxide build-up and resulting in high contact resistance.)
SERVICE:
Service kits for the replacement of the complete A-pillar connectors have been developed. The replacement connectors are equipped with both gold and tin plated terminals, as opposed to only tin plated terminals (original equipment for MY 2006 cars), and are to be spliced in at the door harness and the dash harness.
If there are customer reported or observed door malfunctions related to the A-pillar connectors on either side. The A-pillar connectors on both sides of the vehicle shall be replaced
Gold plated terminals must not be mixed with tin plated terminals. if this is done, galvanic corrosion leading to high resistance connections may occur. always make sure mating terminal pairs have the same plating.
PARTS LIST
Each service kit includes all the necessary heat shrinkable butt splices. One male kit and one female kit (materials for one side) are shown above. The wire ID tags shown correspond to the terminal numbers in the connector, as some wires in the harness are not color coded.
REQUIRED TOOLS
WARRANTY CLAIM INFORMATION