Charging System - General Information Land Rover Range Rover L322

SPECIFICATIONS

BATTERY

Note. If there is insufficient capacity in the battery to disarm the alarm, the alarm may sound on connection of the battery - turning the ignition key to position II will disarm the alarm.

BATTERY DISCONNECT/CONNECT

PROCEDURE 1

PROCEDURE 2

PROCEDURE 3

PROCEDURE 4

PROCEDURE 5

VEHICLE JUMP (EMERGENCY) STARTING - USING ANOTHER VEHICLE

VEHICLE JUMP (EMERGENCY) STARTING - USING A SLAVE BATTERY/STARTING AID

DESCRIPTION

The primary function of the Split Charge system is to protect the vehicle battery from becoming discharged to the degree that it is incapable of starting the engine, due to prolonged use of "add on" electrical equipment, particularly when the loads are being used in the engine off condition.

As the reserve capacity of the auxiliary battery is 100 minutes, it has to be borne in mind that the auxiliary battery can only be expected to support a maximum load of 25 Amperes for 100 minutes before the battery has reached an unusable terminal Voltage of 10.5 (when being used in the engine off condition).

During normal vehicle operation and depending on the state of charge of the primary battery and the loading of the base vehicle electrical circuits, any remaining available current output from the alternator will charge the auxiliary battery.

The Auxiliary battery and associated split charge components are located in the rear right hand side of the vehicle behind the interior trim.

OPERATION

The Auxiliary battery is connected in parallel to the primary battery under certain conditions, namely

1. The vehicle Ignition is on
2. The vehicle electrical system is above 13V±0.2V.

A 25mm 2 cable is connected from the primary battery to a DC contactor. The other terminal of the contactor is connected to the auxiliary battery with a 25mm 2 cable via a 125 Amp Mega fuse.

The contactor-operating coil is controlled by a Voltage sensitive switch and relay. In the event that the vehicle electrical and charging system is above 13V±0.2V, the contactor coil is provided with a path to ground, closing the contacts and effectively connecting the primary and auxiliary batteries in parallel.

The auxiliary battery will then receive charging current from the vehicle providing the vehicle is in a condition of electrical load balance. In the event that the vehicle electrical and charging system falls below 13V±0.2V (hysteresis 0.8V±0.2V), the contactor coil has its path to ground removed and the contacts open. In this condition, any "add on" electrical loads connected to the split charge system can only discharge the auxiliary battery and not the primary battery.

The primary function of the Split Charge system is to protect the vehicle battery from becoming discharged to the degree that it is incapable of starting the engine, due to prolonged use of "add on" electrical equipment, particularly when the loads are being used in the engine off condition.

As the reserve capacity of the auxiliary battery is 135 minutes, it has to be borne in mind that the auxiliary battery can only be expected to support a maximum load of 25 Amperes for 135 minutes before the battery has reached an unusable terminal Voltage of 10.5 (when being used in the engine off condition).

During normal vehicle operation and depending on the state of charge of the primary battery and the loading of the base vehicle electrical circuits, any remaining available current output from the alternator will charge the auxiliary battery.

The auxiliary battery and auxiliary fuse box are located in the rear right hand side of the vehicle behind the interior trim. The Voltage sensitive relay is mounted in the engine compartment.

The Auxiliary battery is connected in parallel to the primary battery under certain conditions, namely

1. The vehicle ignition is on.
2. The vehicle electrical system is above 13.7V.

A 25mm 2 cable is connected from the jump-start post to the voltage sensitive relay. The other terminal of the VSR is connected to the auxiliary battery with a 25mm 2 cable via a 125 Amp Mega fuse. An auxiliary 6-way ATO type fuse box is connected to the auxiliary battery via a 125-amp fuse and 25mm 2 cable.

In the event that the vehicle electrical and charging system is above 13.7V, the VSR contacts are closed and connect the primary and auxiliary batteries in parallel.

The auxiliary battery will then receive charging current from the vehicle providing the vehicle is in a condition of electrical load balance. In the event that the vehicle electrical and charging system falls below 12.8V the VSR contacts open. In this condition, any "add on" electrical loads connected to the split charge system can only discharge the auxiliary battery and not the primary battery.

It is recommended that any additional electrical equipment fitted by the end user is only connected to the spare terminals of the auxiliary fuse box with an appropriately rated fuse. A maximum of 30 amps per circuit and a total of 100 amps for the fuse box must not be exceeded.

1. INTRODUCTION

This document sets out the requirements for care and maintenance of batteries and thereby the standard of battery care at dealers and retailers for new vehicles

This applies to all types of 12 Volt Lead Acid Batteries used in Jaguar and Land Rover vehicles whether they are conventional flooded technology or Absorbed Glass Mat (AGM - also known as Valve Regulated Lead Acid (VRLA)) technology and also applies to both Primary and Auxiliary Batteries. AGM batteries offer improved resistance to cycling as seen in stop start applications.

In order to prevent damage to the battery and ensure a satisfactory service life, all processes detailed within this document must be rigorously adhered to.

It is equally important therefore to note the following key points

1. All new vehicles leave the factory with either a transit relay installed and/or have a transit mode programmed into the vehicle control modules. The transit relay must be removed and the transit mode disabled (where applicable) using an approved diagnostic system, NOT MORE THAN 72 HOURS before the customer takes delivery.
2. The battery can be discharged by the following mechanisms
3. Self Discharge: - A lead acid battery will very slowly discharge itself due to its own internal chemical processes whether it is connected to a vehicle or not.
4. Quiescent Discharge: - The vehicle electrical systems when connected to the battery will draw charge from the battery.

12 Volt Lead Acid Batteries rely on internal chemical processes to create a voltage and deliver current. These processes and the internal chemical structure of the battery can be damaged if the battery is allowed to discharge over a number of weeks / months, or is left in a discharged state for a lengthy time period.

1. On vehicles with conventional ignition keys, these must not be left in the ignition lock barrel when the transit relay has been removed, otherwise quiescent current will increase and the battery will discharge more rapidly.
2. For keyless vehicles, the Smart Key must be stored at least 5m away from the vehicle when the vehicle is parked or stored.
3. AGM Batteries are fully sealed and cannot have the electrolyte level topped up.

Note. Dealers and retailers involved in the storage / handling of vehicles and replacement batteries have a responsibility to ensure that only a fully charged battery may be processed through the distribution selling chain.

2.1 DEALER DEMONSTRATION VEHICLES

Vehicles used as dealer demonstrator(s), in a showroom, must be connected to a showroom conditioner capable of delivering 50 Amps. This will prevent the battery from being damaged.

2.2 SOFTWARE REFLASH, SDD WORK OR IGNITION ON RELATED WORKSHOP ACTIVITIES

Due to the high electrical current demand and high depth of Discharge that can occur during vehicle software re-flash activities, SDD work or ignition on related work in the workshop, vehicles that are undergoing such activities MUST have a power supply capable of delivering 50 Amps or more.

2.4 JUMP STARTING NEW VEHICLES BEFORE THEY HAVE BEEN DELIVERED TO THE CUSTOMER

1. It is the dealer / retailers responsibility to make sure the battery is not allowed to go flat by following the instructions and processes defined in this information.
2. However, if circumstances dictate that a new vehicle must be jump started due to a flat battery while the vehicle is in the dealer / retailers care, the battery on this vehicle must be replaced with a new one prior to delivery to the customer at the dealer / retailers liability.
3. The vehicle should also undergo investigation as to why the battery went flat.
4. Do not connect the jump starting cable to the negative (-) terminal of the battery. Always connect to the recommended earth point. As defined in the owners handbook or service documentation for that vehicle.

2.5 AGM BATTERIES

1. AGM batteries must not be charged above 14.8 Volts. Doing so will damage them.
2. AGM Batteries must be tested with a capable battery tester as detailed in «5. EQUIPMENT»(/land-rover/range-rover/l322-2005-2009/remont/charging-system/#charging-system-general-information__5-equipment)

Note. Under no circumstances should the battery be disconnected with the engine running because under these conditions the alternator can give a very high output voltage. This high transient voltage will damage the electronic components in the vehicle. Loose or incomplete battery connections may also cause high transient voltage.

3. HEALTH AND SAFETY PRECAUTIONS

4.1 RECEIPT OF A NEW VEHICLE

Within 24 hours of receipt of a new vehicle, a battery condition check must be carried out in accordance with the battery test process utilizing an appropriate tester as outlined in 5. EQUIPMENT of this procedure.

Note. NOTE: The midtronics code must be recorded on the form.

Any actions must be carried out in accordance with the table shown in 6. DETERMINING BATTERY CONDITION

4.2 NEW VEHICLE STORAGE

If the vehicle is to be stored the transit relays MUST be refitted and / or the vehicle put into transport mode.

Transit relay removal / vehicle placed in normal mode should only be completed a maximum of 72 hours prior to handover to customer

For vehicles without either a transit mode or transit relay the battery negative cable must be DISCONNECTED from the battery.

For vehicles without either a transit mode or transit relay the battery negative cable must be DISCONNECTED from the battery.

Note. The midtronics code must be recorded on the form.

Any actions must be carried out in accordance with the table shown in 6. DETERMINING BATTERY CONDITION

4.3 PDI / DELIVERY TO CUSTOMER

Before the vehicle is handed over to the customer and as part of the PDI, the condition of the battery needs to be confirmed. The battery condition must be checked in accordance with the battery test process utilizing an appropriate tester as outlined in 5. EQUIPMENT of this procedure.

Note. The midtronics code must be recorded on the form.

Any actions must be carried out in accordance with the table shown in 6. DETERMINING BATTERY CONDITION

4.4 REPLACEMENT BATTERIES FOR SERVICE

All service replacement batteries must have the battery condition checked within 24 hours of receipt and controlled on a 'First In First Out' basis to ensure batteries are not allowed to age unnecessarily.

For batteries in storage and not yet fitted to a vehicle, they must be stored in a dry environment, not in direct sunlight or under any direct heat source. Any batteries exhibiting any forms of damage or corrosion must not be fitted to any vehicle. Any batteries which are dropped must be scrapped, this applies even if no external damage is apparent.

The battery condition must be checked every 30 days in accordance with the battery test process utilizing an appropriate tester as outlined in 5. EQUIPMENT of this procedure.

Any actions must be carried out in accordance with the table shown in 6. DETERMINING BATTERY CONDITION

4.5 BATTERY MAINTENANCE

Any battery whether it is in a vehicle or a replacement part must be tested and/or re-charged every 30 days and MUST be re-charged after every 90 day period.

4.6 BATTERY TEST PROCESS

It is recommended that this test is conducted at least 24 hours after the vehicle engine has been run or the battery charged to avoid the need of surface charge removal. If time constraints make this unacceptable then the surface charge must be removed.

Surface Charge Removal: A vehicle which has had its battery charged or been driven in a 24 hour period before the test, must have its surface charge removed.

1. Turn on the ignition but do not start the vehicle
2. Switch on the headlamps on high beam for a minimum 3 minutes
3. Switch off the headlamps
4. Wait a minimum of 5 minutes before recording test results for any battery measurements

Battery Test: The battery may be tested either on a bench or on the vehicle.

The battery condition must be checked in accordance with the battery test process utilizing an appropriate tester as outlined in 5. EQUIPMENT of this procedure.

Note. The midtronics code must be recorded on the form.

Any actions must be carried out in accordance with the table shown in 6. DETERMINING BATTERY CONDITION .

5. EQUIPMENT

All equipment used must be functionally capable of meeting the compliance requirements. Please refer to the approved equipment document.

In the case of batteries fitted to a new vehicle at the dealership, battery condition should be measured using the appropriate hand-held Midtronics tester as follows

Note. NOTE: All equipment must be calibrated

6. DETERMINING BATTERY CONDITION

7. BATTERY CHARGING

It is essential that a suitably ventilated defined area exists in each dealership / retailer for battery charging.

Batteries MUST BE tested and if necessary charged every 30 days and charged after 90 days irrespective of any test. It is recommended that dealers / retailers always have fully charged batteries ready for use.

A designated controlled area must be allocated for scrap batteries and clearly controlled as such.

To bring a discharged but serviceable battery back to a fully charged condition proceed as follows

1. Check and if necessary top-up the battery electrolyte level. (Flooded maintainable batteries only)
2. Charge the battery using a charger as detailed in the approved equipment document following the manufacturers operating instructions.

Note. When using the Midtronics Diagnostic Charger, automatic mode must always be used. After charging and analysis, the charger may display 'Top-Off Charging', Hit STOP To End. Do not stop charging until the current falls to 5A or less, otherwise the battery will not be fully charged.

Following charging a post charge battery condition test must be carried out in accordance with the table shown in 6. DETERMINING BATTERY CONDITION .

8. BATTERY REPLACEMENT

If it is determined that a battery requires replacement, always refer to the appropriate instructions of the workshop information for instructions on removing and installing the battery from the vehicle.

On in service vehicles fitted with a Battery Monitoring System (BMS), the BMS module must be reset following the installation of a new battery. The BMS module reset procedure must be performed using an approved diagnostic system.

9. CONFIRMING ELECTROLYTE LEVEL

BEFORE CHECKING AND TOPPING-UP THE BATTERY ELECTROLYTE, REFER TO THE HEALTH AND SAFETY PRECAUTIONS INSTRUCTIONS.

AGM TECHNOLOGY BATTERIES ARE FULLY SEALED FOR LIFE AND NO ATTEMPT SHOULD BE MADE TO CHECK OR TOP UP THE ELECTROLYTE LEVEL.

On certain types of battery the electrolyte level may need to be checked.

1. Make sure the battery is of a type suitable for topping up. These types of batteries will have cell plugs visible on the top face of the battery or a removable access panel to allow access to the cells.
2. On batteries with a clear or opaque case and level marks, check the electrolyte level by visual inspection of the maximum level indicator mark on the battery casing indicating adequate level above the battery separators.
3. On batteries with black cases, remove the cell plugs or access panel and ensure the electrolyte level is level with the indicator in the cell hole. A flashlight may be required to see the electrolyte level on this type of battery.
4. If the electrolyte level is low, top-up using distilled water.

Note. Maintenance free and Valve Regulated (AGM) batteries are sealed and therefore cannot be topped up.

VEHICLE QUIESCENT CURRENT TESTING

On vehicles fitted with a Battery Monitoring System (BMS), the diagnostic routine for quiescent drain testing in the approved Jaguar or Land Rover diagnostic system should be utilized.

If a customer complains of a vehicle battery that discharges continuously or when left for a prolonged period of time, it is recommended that a quiescent drain test is performed as described below.

The battery drain should be measured using the approved Jaguar or Land Rover diagnostic system or a Digital Multi-Meter (DVOM). A procedure for quiescent drain measurement using the diagnostic system is available in the Diagnosis and Testing Instructions of the Workshop Information. The vehicle should be in the locked/armed state (for example vehicle alarm fully armed), all doors, engine and luggage compartment lids are open and latched (so as to appear closed from an electrical point of view). The test should take place after the vehicle has entered shutdown mode. The time taken for this to occur after the ignition is switched off varies according to model (Refer to the Topix On line resource for details).

When the vehicle is armed, the effect of the security system Light Emitting Diode (LED) flashing is to cause a pulsation in the measured current drain. In this case, either the average current should be taken (using a Digital Multi- Meter (DVOM) with an averaging system) or the current reading taken, ignoring the brief high current peaks.

EQUIPMENT

Approved Jaguar or Land Rover diagnostic system with current probe OR Digital Multi-Meter (DVOM) with current probe.

METHOD OF MEASUREMENT

Using an Approved Jaguar or Land Rover Diagnostic System.

1. Switch off all electrical loads and ensure that the ignition is off
2. Connect the current probe to the approved Jaguar or Land Rover diagnostic system
3. Calibrate the probe
4. Install a clamp around the battery lead/junction box lead
5. Go to the Quiescent Current Testing instructions in this procedure

Using a digital multimeter

Do not use an in-line DVOM to measure the quiescent drain on vehicles fitted with an electronic throttle (for example Range Rover 2002MY onwards). The current exceeds the maximum amount the fuse in the DVOM is capable of handling.

1. Switch off all electrical loads and ensure that the ignition is off
2. Connect the current probe to the digital multimeter
3. Calibrate the probe
4. Install a clamp around the battery lead/junction box lead
5. Go to the Quiescent Current Testing instructions in this procedure

QUIESCENT CURRENT TESTING

1. Switch ignition to 'on' or select ignition mode in keyless vehicles and switch to 'off' (do not crank)
2. Remove key from ignition switch (if equipped)
3. Open and latch all doors, hood and luggage compartment lid
4. Lock the vehicle using the remote function on the remote handset. (Single lock only to avoid volumetric alarm arming)
5. Remove any other potential electrical drains such as accessories plugged into accessory sockets
6. Record the amperage readings after the shutdown period referenced in the Topix on line resource for details. Note all cars from 10MY onwards should be less than 30mA after 30 minutes
7. Record the final reading on the battery report form

The preferred method of testing following an excessive current consumption figure is to use a current probe around individual junction box leads to the various suspected circuits to identify a potential cause. This is in preference to the old method of removing fuses for the following reasons

1. The drain may be caused by a module remaining active and preventing the quiescent drain from reducing to normal levels
2. The drain may be caused by a relay winding that is activated. Pulling the fuse can allow this to 'reset' and the drain will be lost and go un-diagnosed

LAND ROVER QUIESCENT DRAIN VALUES

OVERVIEW

For battery condition indicator information: REFER to: DESCRIPTION & OPERATION . For battery charging and testing, refer to the instructions for the equipment in use in your own workshop.

The generator operates within a "smart" system, able to allow for temperature variations and optimize battery charging.

For information on the description and operation of the system: REFER to

GENERATOR AND REGULATOR (4.2L) or GENERATOR AND REGULATOR (4.4L)

INSPECTION AND VERIFICATION

1. Verify the customer concern.
2. Visually inspect for obvious mechanical or electrical faults. VISUAL INSPECTION Mechanical Electrical Generator Drive belt Drive belt tensioner Generator pulley Check the security of the generator fittings Generator Battery Starter motor Harnesses and connectors Fuses Battery junction box (BJB) - fuse 20E Starter motor megafuse Charge warning light function Controller area network (CAN) circuits Engine control module (ECM)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index. Make sure that all DTCs are cleared following rectification.

SYMPTOM CHART

DTC INDEX

Note. Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).

For a full list of Engine control module (ECM) DTCs: REFER to

ELECTRONIC ENGINE CONTROLS - DIAGNOSTIC PROCEDURES (4.4L) or ELECTRONIC ENGINE CONTROLS - DIAGNOSTIC PROCEDURES (4.2L)

PINPOINT TEST A

PINPOINT TEST B

PINPOINT TEST C

Scheme 1

Plot on the graph the band to which battery voltage reading (V1) relates

Use the table below to continue diagnosis

PINPOINT TEST D

PINPOINT TEST E

PINPOINT TEST F

PINPOINT TEST G

PINPOINT TEST H

PINPOINT TEST I

PINPOINT TEST J

BATTERY CHARGING

No data available

See also:
• 5. EQUIPMENT
• 6. DETERMINING BATTERY CONDITION
• DESCRIPTION & OPERATION
• PINPOINT TEST B
• PINPOINT TEST C
• PINPOINT TEST D
• PINPOINT TEST E
• PINPOINT TEST F
• PINPOINT TEST G
• PINPOINT TEST H
• PINPOINT TEST I
• PINPOINT TEST J