Touareg V8-4.2L (BHX) (2004)
Trailer Lighting Module: All Technical Service Bulletins
Trailer Control Module - Update Programming
Group: 01
Number: 04-07
Date: Apr. 8, 2004
Subject:
Update Programming (Flashing) Trailer Control Module
Model(s):
Touareg with Trailer Towing 2004 Accessory Package
Condition
Trailer Control Module (J345) requires
"Update - Programming" to increase electrical capabilities from 4 amps / 50 watts to 8.3 amps /100 watts to accommodate trailers with large electrical
draw.
Service
Tool requirements
^
VAS 5051 or 5052 (with Basis CD V.06.05 and the Brand CD V.06.48 or higher) with old diagnosis logs erased prior to start.
^
"Update - Programming" (flashing) CD W42TOUAREGTH CD.
^
VAS 5051: connected to vehicle and to 110V AC Power supply at all times during procedure.
^
VAS 5052: connected to vehicle with battery voltage requirements met.
Note:
Additional copies of the "Update - Programming" CD (Literature Number W42TOUAREGTHCD) may be ordered from the Volkswagen Technical
Literature Ordering Center.
Vehicle requirements
^
Battery MUST have minimum no-load charge of 12.5V (failure to maintain voltage during update process can lead to Control Module failure) (you
must use an approved battery charger to maintain battery voltage).
^
Any appliances with high electromagnetic radiation (i.e. mobile phones) switched OFF.
^
No Stored DTC's, erase any stored DTCs.
CAUTION!
Non-observance of the following points may lead to Control Module failure! VAS 5051 or 5052 must always be connected to the approved power
supply at the approved voltages. Under no circumstances should the power supply be interrupted or the diagnostic connector unplugged during the
flash procedure Any appliances with high electromagnetic radiation (i.e. mobile phones) must be switched OFF.
PRIOR to performing procedure to "Update - Programming" (flashing) the Control Module:
^
ALL fault memories must be interrogated and erased.
Note:
Failure to erase ALL fault memories may cause "Update - Programming" (flashing) procedure to fail!
-
Select vehicle system "69 - Trailer function".