MACS Monthly Newsletter - 2017 - SEP4
4. Module memory power is now being maintained by the clean battery charger / power
maintainer. NOTE: Some charger / maintainers will NOT supply continuous power if a
battery with a certain amount of voltage is
not detected when it is connected. In these
cases there may be an override switch that
can be selected in order to bypass this safety
function of the charger / maintainer.
CanDo Code Scanners, Autel, Bar Tec
cycle drops below an unacceptable threshold, the
battery management module will register a diagnostic fault code and would suggest diagnosis of
the charging system or replacement of the battery.
When a replacement battery is required, the battery
management module requires a diagnostic 'validation' or 'registration' procedure. Although these
systems are more commonly used on Start/Stop
models, battery validation requirement was neces-
Figures 7, 8 and 9: When replacing batteries for BMW, Mini, VW/Audi, Jaguar, Land Rover and Ford, a reset of the battery life in the vehicle's ECU must be
performed. Failing to perform this function may result in the vehicle's charging system over-charging a new replacement battery, which can result in the replacement
battery's early failure or even phantom drivability problems. These stand alone tools perform the battery reset / registration procedure w/o the need for an OEM
factory scan tool or capable aftermarket dealer level tool.
Dealing with Power Loss
sary on Audi models as early as 2004. The Battery
Validation Package Tool offers a cost effective solution to the ever increasing requirement to diagnostically validate replacement batteries.
In addition to the obvious resetting of the vehicle's clock and radio station presets (if not stored in
EEPROM / NVRAM) numerous items on the vehicle will need to be reset / relearned. Some of these
resets may take place on their own. Others may require a scan tool. On those that require a scan tool,
the tool required to perform the relearn / reset
function can in some cases be the OEM factory scan
tool. Other vehicles may have relearn / reset functions available via aftermarket dealer level tools or
even standalone maintenance reset tools. (Fig. 7, 8,
& 9)
As modern technology evolves, more and more
OEMs use a BMS (Battery Management System)
that manages the degradation of the battery and
charges it accordingly. When the battery's duty
September 2017
HVAC Actuators
HVAC actuators for example, may simply be commanded to their furthest movements in order for
the HVAC module to learn each actuator 's position.
Note: while actuators move from one extreme position to the other, many HVAC control modules
actually learn the curve of the actuator 's position
sensor. While some actuators are monitored for position by the current pulses of the actuator 's electric motor brushes and armature commentator segments, potentiometers (a.k.a. "Pots") are still quite
common. Pots are not 100 percent linear. By this we
4
MACS Service Reports
Table of Contents for the Digital Edition of MACS Monthly Newsletter - 2017
MACS Monthly Newsletter - 2017 - JAN1
MACS Monthly Newsletter - 2017 - JAN2
MACS Monthly Newsletter - 2017 - JAN3
MACS Monthly Newsletter - 2017 - JAN4
MACS Monthly Newsletter - 2017 - JAN5
MACS Monthly Newsletter - 2017 - JAN6
MACS Monthly Newsletter - 2017 - JAN7
MACS Monthly Newsletter - 2017 - JAN8
MACS Monthly Newsletter - 2017 - FEB1
MACS Monthly Newsletter - 2017 - FEB2
MACS Monthly Newsletter - 2017 - FEB3
MACS Monthly Newsletter - 2017 - FEB4
MACS Monthly Newsletter - 2017 - FEB5
MACS Monthly Newsletter - 2017 - FEB6
MACS Monthly Newsletter - 2017 - FEB7
MACS Monthly Newsletter - 2017 - FEB8
MACS Monthly Newsletter - 2017 - MAR1
MACS Monthly Newsletter - 2017 - MAR2
MACS Monthly Newsletter - 2017 - MAR3
MACS Monthly Newsletter - 2017 - MAR4
MACS Monthly Newsletter - 2017 - MAR5
MACS Monthly Newsletter - 2017 - MAR6
MACS Monthly Newsletter - 2017 - MAR7
MACS Monthly Newsletter - 2017 - MAR8
MACS Monthly Newsletter - 2017 - APR1
MACS Monthly Newsletter - 2017 - APR2
MACS Monthly Newsletter - 2017 - APR3
MACS Monthly Newsletter - 2017 - APR4
MACS Monthly Newsletter - 2017 - APR5
MACS Monthly Newsletter - 2017 - APR6
MACS Monthly Newsletter - 2017 - APR7
MACS Monthly Newsletter - 2017 - APR8
MACS Monthly Newsletter - 2017 - MAY1
MACS Monthly Newsletter - 2017 - MAY2
MACS Monthly Newsletter - 2017 - MAY3
MACS Monthly Newsletter - 2017 - MAY4
MACS Monthly Newsletter - 2017 - MAY5
MACS Monthly Newsletter - 2017 - MAY6
MACS Monthly Newsletter - 2017 - MAY7
MACS Monthly Newsletter - 2017 - MAY8
MACS Monthly Newsletter - 2017 - JUN1
MACS Monthly Newsletter - 2017 - JUN2
MACS Monthly Newsletter - 2017 - JUN3
MACS Monthly Newsletter - 2017 - JUN4
MACS Monthly Newsletter - 2017 - JUN5
MACS Monthly Newsletter - 2017 - JUN6
MACS Monthly Newsletter - 2017 - JUN7
MACS Monthly Newsletter - 2017 - JUN8
MACS Monthly Newsletter - 2017 - JUL1
MACS Monthly Newsletter - 2017 - JUL2
MACS Monthly Newsletter - 2017 - JUL3
MACS Monthly Newsletter - 2017 - JUL4
MACS Monthly Newsletter - 2017 - JUL5
MACS Monthly Newsletter - 2017 - JUL6
MACS Monthly Newsletter - 2017 - JUL7
MACS Monthly Newsletter - 2017 - JUL8
MACS Monthly Newsletter - 2017 - AUG1
MACS Monthly Newsletter - 2017 - AUG2
MACS Monthly Newsletter - 2017 - AUG3
MACS Monthly Newsletter - 2017 - AUG4
MACS Monthly Newsletter - 2017 - AUG5
MACS Monthly Newsletter - 2017 - AUG6
MACS Monthly Newsletter - 2017 - AUG7
MACS Monthly Newsletter - 2017 - AUG8
MACS Monthly Newsletter - 2017 - SEP1
MACS Monthly Newsletter - 2017 - SEP2
MACS Monthly Newsletter - 2017 - SEP3
MACS Monthly Newsletter - 2017 - SEP4
MACS Monthly Newsletter - 2017 - SEP5
MACS Monthly Newsletter - 2017 - SEP6
MACS Monthly Newsletter - 2017 - SEP7
MACS Monthly Newsletter - 2017 - SEP8
MACS Monthly Newsletter - 2017 - OCT1
MACS Monthly Newsletter - 2017 - OCT2
MACS Monthly Newsletter - 2017 - OCT3
MACS Monthly Newsletter - 2017 - OCT4
MACS Monthly Newsletter - 2017 - OCT5
MACS Monthly Newsletter - 2017 - OCT6
MACS Monthly Newsletter - 2017 - OCT7
MACS Monthly Newsletter - 2017 - OCT8
MACS Monthly Newsletter - 2017 - NOV1
MACS Monthly Newsletter - 2017 - NOV2
MACS Monthly Newsletter - 2017 - NOV3
MACS Monthly Newsletter - 2017 - NOV4
MACS Monthly Newsletter - 2017 - NOV5
MACS Monthly Newsletter - 2017 - NOV6
MACS Monthly Newsletter - 2017 - NOV7
MACS Monthly Newsletter - 2017 - NOV8
MACS Monthly Newsletter - 2017 - DEC1
MACS Monthly Newsletter - 2017 - DEC2
MACS Monthly Newsletter - 2017 - DEC3
MACS Monthly Newsletter - 2017 - DEC4
MACS Monthly Newsletter - 2017 - DEC5
MACS Monthly Newsletter - 2017 - DEC6
MACS Monthly Newsletter - 2017 - DEC7
MACS Monthly Newsletter - 2017 - DEC8
https://www.nxtbook.com/nxtbooks/macs/servicereports_2022
https://www.nxtbook.com/nxtbooks/macs/servicereports_2021
https://www.nxtbook.com/nxtbooks/macs/servicereports_2020
https://www.nxtbook.com/nxtbooks/macs/servicereports_2019
https://www.nxtbook.com/nxtbooks/macs/servicereports_2018
https://www.nxtbook.com/nxtbooks/macs/servicereports_2017
https://www.nxtbook.com/nxtbooks/macs/servicereports_2016
https://www.nxtbook.com/nxtbooks/macs/servicereports_2015
https://www.nxtbookmedia.com