V50 L5-2.4L VIN 38 B5244S4 (2006)
Technical Service Bulletin # TNN36-60
Date: 071026
Electrical - Various Electrical Door Malfunctions
NO: 36-60
DATE: 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.
