V90 L6-2.9L VIN 96 B6304S (1998)
Battery: Technical Service Bulletins
Engine Controls - Software Download Fault Prevention
NO: 30-04
DATE: 10-13-2005
MODEL: All Vehicles
M. YEAR: All
SUBJECT:
Midtronics PSC-550 Vehicle Power Supply use required during Software Download. Includes Mobile Technician Program
REFERENCE:
Special tool bulletin no. 111-A // VADIS/VIDA repair instruction
This Tech Note supercedes the previous TNN 30-04 dated 10-11-05. Please update your files.
DESCRIPTION:
Software Download failure due to too high or too low voltage
When performing a software download as well as electronic diagnostics, activations and quick tests within VIDA, it is imperative that the vehicle's
system voltage is maintained between apx. 13.0V and 14.0V.
We have found that certain SWDL (Software Download) faults may occur due to too high or too low a voltage. Among them are; Half loaded nodes and
check sum errors.
Too high a voltage can be caused by using commonly available Constant current type chargers. These are the type used in most automotive shops. This
type of charger will increase the charging voltage to maintain a constant current setting. Therefore, the Voltage may increase up to 17 Volts or higher
depending on the condition (internal resistance) of the battery to maintain the current setting. While the higher voltages can be advantageous for charging
batteries, it can also be the reason for failed Software Downloads, one or more nodes stuck in Program mode and misleading results while fault tracing