Land Rover Defender: Battery Diagnostics - 12 Volt Midtronics GR8-1180 JLR Diagnostic Battery
Charger
DIAGNOSIS AND TESTING
PRINCIPLES OF OPERATION
For a detailed description of the battery system and operation, refer to the
relevant Description and Operation section
of the workshop manual REFER to: Battery, Mounting and Cables - [+] Non-Electric
Vehicles (Battery, Mounting and Cables - Vehicles With: Non-
Electric Vehicles, Description and Operation),
Startup Battery and Cables - INGENIUM I6 3.0L Petrol (Battery, Mounting and
Cables - Vehicles With: Non-
Electric Vehicles, Description and Operation).
INSPECTION AND VERIFICATION
CAUTION:
Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution
of control modules does not
guarantee confirmation of a fault and may also cause additional faults in the
vehicle being checked and/or
the donor vehicle.
NOTES:
- Generic scan tools may not read the codes listed, or may read only
five digit codes. Match the five digits
from the scan tool to the first five digits of the seven digit code listed
to identify the fault (the last two digits
give additional information read by the manufacturer-approved diagnostic
system).
- When performing voltage or resistance tests, always use a digital
multimeter that has the resolution ability
to view 3 decimal places. For example, on the 2 volts range can measure 1mV
or 2 K Ohm range can
measure 1 Ohm. When testing resistance always take the resistance of the
digital multimeter leads into
account.
- Check and rectify basic faults before beginning diagnostic routines
involving pinpoint tests.
- If Diagnostic Trouble Code(s) (DTC)s are recorded and, after
performing the pinpoint tests, a fault is not
present, an intermittent concern may be the cause. Always check for loose
connections and corroded
terminals.
- Verify the customer concern
- Visually inspect for obvious signs of mechanical or electrical damage
Visual Inspection
- If an obvious cause for an observed or reported concern is found,
correct the cause (if possible) before
proceeding to the next step
- If the cause is not visually evident check for Diagnostic Trouble Codes
( DTCs) and refer to the DTC Index
- Check the Jaguar Land Rover claims submission system for open campaigns.
Refer to the corresponding
bulletins and SSMs which may be valid for the specific customer complaint
and complete the recommendations
as required
12 VOLT MIDTRONICS GR8-1180 JLR DIAGNOSTIC BATTERY CHARGER USER GUIDE
PINPOINT TEST A : VOLTAGE DROP ACROSS VEHICLE HARNESS AND BATTERY TERMINAL
The following steps must be completed to make sure correct operation of the
GR8-1180 JLR diagnostic battery
charger during the battery test procedure
NOTE:
The GR8-1180 JLR diagnostic battery charger is suitable for testing flooded and
absorbed glass mat (AGM)
type batteries including Primary and Secondary batteries
Testing a Battery
Using the GR8-1180 JLR diagnostic battery charger, the following test
procedure will confirm the serviceability of the
battery (see Completing a Battery Test)
Battery Label Example
GR8-1180 JLR Diagnostic Battery Charger Display Keypad
The GR8-1180 JLR diagnostic battery charger has an integrated display and
keypad, the display guides the user
through the on-screen navigation aids, directions and messages. The illustration
(below) shows how the elements on
the screen relate to the keypad and details the functions of the various keys:
Battery Test Types
Before performing any battery diagnostic on a vehicle, make sure the ignition
is OFF and the vehicle is powered down,
with the modules entering 'sleep mode' before commencing and with the hazard
switch illumination extinguished
The Midtronics GR8-1180 JLR diagnostic battery charger has three types of
battery test (Diagnostic Charging, Pre-
Delivery Inspection (PDI) / Storage and Battery Storage), one battery support
function (Battery Support Power Supply)
and one manual charging option available (Recovery Charging) for the technician
to select:
DIAGNOSTIC CHARGING
- 1. The DIAGNOSTIC CHARGING test needs to be used on any battery that has
started its warranty life cycle. The
battery is in use and installed to a vehicle registered to an owner. The
GR8-1180 JLR diagnostic battery charger
will determine the internal condition of a battery before attempting to
apply a charge to it. If required, it will then
charge and assess the battery until the battery condition is established and
a test result is given
PDI / STORAGE
- 2. The PDI / STORAGE test needs to be used on any battery that has not
yet been entered into the warranty life
cycle. The battery is installed to a NEW vehicle, but the vehicle has not
yet been sold/registered to an owner. The
GR8-1180 JLR diagnostic battery charger will determine the internal
condition of a battery before attempting to apply a charge to it. If
required, it will then charge and assess the battery until the battery
condition is established
and a test result is given
BATTERY STORAGE
- 3. The BATT. STORAGE test should be used on any battery that has not yet
been entered into the warranty life
cycle. The battery is not in use and is a Parts Stock battery and has not
yet been installed to a vehicle. The GR8-
1180 JLR diagnostic battery charger will determine the internal condition of
a battery before attempting to apply a
charge to it. If required, it will then charge and assess the battery until
the battery condition is established and a
test result is given
BATTERY SUPPORT Power Supply
- 4. The BATTERY SUPPORT Power Supply function needs to be used whenever
the vehicle comes in to the
workshop for regular maintenance or vehicle module updates. Updating modules
can take up to several hours and
during that period a lot of current will be depleted from the battery. To
support the battery during this process use
the BATTERY SUPPORT function. When working on a vehicle, it is recommended
that the GR8-1180 JLR
diagnostic battery charger is connected and switched to the BATTERY SUPPORT
function to make sure that,
when the work is completed, the battery's state of charge is maintained at a
healthy level
RECOVERY CHARGING
5. The RECOVERY CHARGING mode should only be used when the battery voltage is
below nine volts. The
current should be set to 50 amps for a flooded battery or 40 amps for an AGM
battery. The timer for the duration of
the RECOVERY CHARGING cycle should be set for one hour. When RECOVERY CHARGING
is complete, the
DIAGNOSTIC CHARGING (see above) mode may be used to assess the battery
Completing a Battery Test
Battery Tester Results Table
Flooded Battery Care Point
If the vehicle is equipped with a flooded battery, make sure the replacement
battery is a flooded battery of the same
specification (cold cranking amperage (CCA), battery standard (EN/SAE) / amp
hour rating (Ah) ) as the original battery
Under no circumstances should you fit a flooded battery to a vehicle that
originally had an AGM battery, unless
formally instructed by Jaguar/Land Rover
AGM Battery Care Point
If the vehicle is equipped with an absorbed glass mat (AGM) battery, make
sure the replacement battery is a AGM
battery of the same specification (cold cranking amperage (CCA), battery
standard (EN/SAE) / amp hour rating (Ah) )
as the original battery, unless formally instructed by Jaguar/Land Rover
READ NEXT:
DIAGNOSIS AND TESTING
PRINCIPLES OF OPERATION
For a detailed description of the Charging System, refer to the relevant
Description and Operation section in the
workshop manual.
INSPECTION AND VERIFIC
DIAGNOSIS AND TESTING
PRINCIPLES OF OPERATION
For a detailed description of the Charging System, refer to the relevant
Description and Operation section in the
workshop manual.
INSPECTION AND VERIFIC
PART(S)
ALL VEHICLES
REPAIR
Startup Battery (REMOVAL AND INSTALLATION)
REMOVAL AND INSTALLATION
GENERAL EQUIPMENT
REMOVAL
NOTES:
This procedure contains some variation in the illustrations dependi
SEE MORE:
DIAGNOSIS AND TESTING
PRINCIPLES OF OPERATION
For a detailed description of the Glass, Frames and Mechanisms, refer to the
relevant Description and Operation
section in the workshop manual. REFER to: Glass, Frames and Mechanisms (Glass,
Frames and Mechanisms,
Description and Operation).
INSPECTION
Make sure the following warnings and
cautions have been read and fully
understood before using the touchscreen
controls. Failure to use the touchscreen
controls safely could result in an accident,
leading to serious injury, death or damage
to the vehicle and its components.
Do not adjust the touchs
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