[ Pobierz całość w formacie PDF ]

To prevent this, the consumer shut-down function can be deactivated. This is performed by
the following procedure:
Slide the battery switch off and on again twice within two seconds.
1. Switch ON (starting position)
ON OFF
2. Switch OFF
ON OFF
3. Switch ON
ON
OFF
4. Switch OFF
ON
OFF
5. Switch ON
ON OFF
The function is cancelled by: "terminal 15 On" , switching the battery switch from "OFF" to
"ON" or failure of the battery voltage to reach 12.6 V after 6 hours of charging.
28
Power Module
Diagnosis
All inputs/outputs that are part of the Power Module can be diagnosed by Test Modules or
status checked by the Control Unit Functions of the Diagnosis Program. The outputs can
also be activated by Component Activation and the power consumption displayed.
The Diagnosis Program is based on the E46 concept.
All electronic fuses and the electronic battery master switch are monitored for short cir-
cuits/circuit breaks. In the event of a fault, an appropriate entry is made in the PM's
fault memory and, if appropriate, a check control message initiated.
Service Functions
Sleep Mode Activation
This function can be used to put the control units into sleep mode. The battery switch must
be set to  ON when using this feature. The Test module will indicate whether the function
was successful or not.
(
M
u
s
t
b
e
p
e
r
f
o
r
m
e
d
a
n
y
t
i
m
e
a
b
a
t
t
e
r
y
i
s
r
e
p
l
a
c
e
d
)
*
Battery Replacement Registration (Must be performed any time a battery is replaced)*
This Service Function informs the PM that the battery has been replaced. It completes the
following operations:
" The battery capacity is set to 80%.
" The current odometer reading is stored.
The odometer readings at which the last seven battery replacements took place can be
read off from the Diagnosis Requests of Control Unit Functions.
" The stored battery statistics (current, voltage, battery charge level) are deleted.
" The stored temperature statistics are deleted.
Transport Mode Clearing
Vehicles that arrive at the BMW centers may have the Transport Mode cleared by using the
Test Module under the Service Functions menu. Different from the Storage Mode
described on page 24, certain consumers such as the radio, interior lights, and electric win-
dows (except drivers side) are permanently switched off.
29
Power Module
Review Questions
1. Name a feature of the Power Module that is responsible for ensuring that important
systems have power, even if a voltage loss while driving is detected. How can the
Power Module react to a loss in power?
2. What information does the Power Module use to calculate the optimum charge voltage?
3. Which control unit provides the 15w (wake-up) signal to the Power Module? What
would happen if the wire for the 15w input were damaged?
4. How would the driver of the vehicle know that the battery switch was in the OFF
position?
5. How is the Power Module informed that an external battery charger has been
connected?
6. What must be performed to the Power Module after replacing a battery?
7. Why is the Power Module responsible for controlling the trunk and filler flap lock
actuators?
30
Power Module [ Pobierz całość w formacie PDF ]

zanotowane.pl

doc.pisz.pl

pdf.pisz.pl

skierniewice.pev.pl