Jaguar XJ - Manual (Page 175)

R
(FM8) SEMCON JLR OWNER GUIDE VER 1.00 EURO
LANGUAGE: english-en; MARQUE: jaguar; MODEL: XJ
Vehicle battery
175
BATTERY MONITORING SYSTEM
(BMS)
If excessive battery discharge is occurring
when the engine isn't running, the system will
shut down non-essential electrical systems to
protect battery power.
CONNECTING BOOSTER CABLES
1. Connect the positive booster cable to the
positive terminal on the donor vehicle's
battery.
2. Connect the other end of the positive
booster cable to the positive terminal on
the disabled vehicle's battery.
3. Connect the negative booster cable to the
recommended jump starting earth point of
the donor vehicle.
4. Connect the other end of the negative
booster cable to a chassis stud. Two are
available on the left-hand side at the rear of
the load space opposite the battery.
Check that all cables are clear of any
moving components and that all
four connections are secure.
Note: If repeated attempts to start the
disabled vehicle are needed, allow the
donor vehicle to idle for a few minutes
between attempts.
5. Start the engine of the donor vehicle, and
allow it to idle for a few minutes.
6. Start the engine of the disabled vehicle.
Note: If repeated attempts to start the
disabled vehicle are needed, allow the
donor vehicle to idle for a few minutes
between attempts.
7. Allow both vehicles to idle for two minutes.
8. Switch off the donor vehicle.
DISCONNECTING THE BOOSTER
CABLES
To avoid serious injury use extreme
caution when removing the booster
cables as the engine will be running
on the previously disabled vehicle.
This means that you may be working
close to components which are
moving at high speed, carry high
voltage, or may be hot.
Note: Do not switch on any electrical
equipment until after the cables have been
disconnected.
The engine should be running on the
previously disabled vehicle and the engine
switched off on the donor vehicle. Disconnect
the booster cables in the exact reverse order of
that used for connection.
CHARGING THE VEHICLE BATTERY
The battery must be disconnected and
removed from the vehicle before
charging.
Battery disconnection, removal and
replacement, should only be carried out
by qualified personnel. Consult your
Dealer/Authorised Repairer.
REPLACING THE VEHICLE BATTERY
Battery disconnection, removal and
replacement, should only be carried out
by qualified personnel. Consult your
Dealer/ Authorised Repairer.
Used batteries must be disposed
of correctly, as they contain a
number of harmful substances.
Seek advice from your
Dealer/Authorised Repairer and/or
your local authority.