2010 JAGUAR XFR battery

Published: 11-May-2011
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Engine Cooling - System
Operation and Component Description
Description and Operation

Control Diagram

NOTE: A = Hardwired



Item Description 1 Battery 2 BJB (battery junction box) (250 A megafuse) 3 EJB (engine junction box) 4 Cooling fan 5 ECM (engine control module) www.JagDocs.com

14 Radiator 15 Auxiliary radiator 16 Connection with supercharger cooling system
System Operation
When the engine is running, the coolant is circulated around the engine cooling system by the coolant pump. From the coolant
pump, coolant flows through the cylinder heads and the engine oil cooler into the cylinder block and the heater manifold.

In the cylinder block, the coolant flows forwards to the outlet tube. When the coolant is cold, the thermostat is closed and the
coolant flows direct from the outlet tube back to the coolant pump. Once the coolant reaches operating temperature the
thermostat begins to open, to control system temperature, and coolant flows from the outlet tube to the coolant pump via the
radiator and, on SC (supercharger) vehicles, the auxiliary radiator. When the thermostat is open, the coolant flow through the
radiator(s) also generates a coolant flow through the transmission fluid cooler.

From the heater manifold the coolant flows through the electronic throttle and the heater core, in parallel circuits that are
unaffected by the position of the thermostat. From the electronic throttle, the coolant merges with bleed coolant from the
coolant pump and the outlet tube and flows to the expansion tank. From the heater core, the coolant flows back to the inlet of
the coolant pump.

Expansion and contraction of the coolant is accommodated by an air space in the expansion tank and the compliance of the
flexible hoses.

If the coolant level in the expansion tank decreases below a predetermined value, the level sensor connects a ground to the
instrument cluster, which activates the appropriate warning. For additional information, refer to 413-01 Instrument Cluster.

The cooling fan is operated by a fan control module integrated into the cooling fan motor. The fan control module regulates the
voltage, and thus speed, of the cooling fan motor in response to a PWM (pulse width modulation) signal from the ECM (engine
control module).

The cooling fan receives a battery feed and an ignition feed from the EJB (engine junction box). The ignition feed is supplied
from the main relay in the EJB, which is controlled by the ECM.
The ECM calculates the required fan speed from the engine temperature, A/C (air conditioning) system pressure and transmission fluid temperature. Under hot operating conditions, the fan may continue to operate for 4 minutes after the engine
has been switched off.



COOLANT PUMP Component Description



Item Description 1 Inlet connection 2 Pump body 3 Outlet flange to RH cylinder head 4 Outlet to engine oil cooler 5 Outlet flange to LH cylinder head

Proceed to the next step. A3 'Cooling fan is operating permanently' A3: COOLING FAN IS OPERATING PERMANENTLY 1 The cooling fan is operating permanently Is the customer reported symptom that the cooling fan is operating permanently at maximum speed?
Yes
The cooling fan is operating permanently
Proceed to the test step A5 'Cooling fan is operating permanently'
No
The cooling fan is NOT operating permanently
Proceed to the next step. A4 'Cooling fan is NOT operating' A4: COOLING FAN IS NOT OPERATING 1 The cooling fan is NOT operating Is the cooling fan NOT operating?
Yes
The cooling fan is NOT operating
Proceed to the test step A6 'Cooling fan is NOT operating'
No
No fault found. Verify customer concern of cooling fan operation A5: COOLING FAN IS OPERATING PERMANENTLY
WARNING: Moving parts can cause severe injury, keep clear of moving parts, never place your hands or any part of your
body near to moving parts 1 Using the manufacturer approved diagnostic system check datalogger signal – Electric Fan PWM Control - Commanded (0X03F9) - 2 Record the value of the datalogger signal – Electric Fan PWM Control - Commanded (0X03F9) - Is the value of the datalogger signal – Electric Fan PWM Control - Commanded (0X03F9) -between 5% &
16% whilst the cooling fan is operating?
Yes
The cooling fan should not be rotating in this PWM range
Refer to the electrical circuit diagrams and check the following circuit's for short circuit to ground, short
circuit to power, open circuit, high resistanceRefer to the electrical circuit diagrams and check the following
connectors for signs of water ingress, and pins for damage and/or corrosionEngine control module,
connector and wiringCircuit reference - ECFC -Cooling fan motor control unit connector and wiringCircuit
reference - VBATT -Circuit reference - IGN -Circuit reference - PWM -Circuit reference - GND -Battery
junction box, connector and wiringEngine junction box, connector and wiringCheck and install a new cooling
fan
No
Proceed to the next step. A6 'Cooling fan is NOT operating' A6: COOLING FAN IS NOT OPERATING
CAUTION: Ensure hood is closed and there are not any loose objects in front of the vehicle 1 Using the manufacturer approved diagnostic system command datalogger signal – Electric Fan PWM Control - Commanded (0X03F9) -to 30% Did the cooling fan start rotating?
Yes
Proceed to the next step. A7 'Electric Fan PWM Control'
No
Proceed to the step. A8 'Wiring check' A7: ELECTRIC FAN PWM CONTROL 1 Using the manufacturer approved diagnostic system command datalogger signal – Electric Fan PWM Control - Commanded (0X03F9) -to 90% Did the cooling fan rotating speed increase?
Yes
Using the manufacturer approved diagnostic system disable output state control function for this signal
and allow the cooling fan to stop rotating
No fault found. Verify customer concern of cooling fan operation
Proceed to the test step A9 'Cooling fan validation procedure'
No
Proceed to the step. A8 'Wiring check' A8: WIRING CHECK 1 Refer to the electrical circuit diagrams and check the following circuit's for short circuit to ground, short circuit to power, open circuit, high resistance 2 Refer to the electrical circuit diagrams and check the following connectors for signs of water ingress, and pins for damage and/or corrosion

Engine control module, connector and wiring
- Circuit reference - ECFC -
Cooling fan motor control unit connector and wiring
- Circuit reference - VBATT -
- Circuit reference - IGN -
- Circuit reference - PWM -
- Circuit reference - GND -
Battery junction box, connector and wiring
- Megafuses

Published: 19-Nov-2013
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Auxiliary Radiator
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Refer to: Air Cleaner RH (303-12C Intake Air Distribution and Filtering - V8 5.0L Petrol, Removal and Installation).


3. CAUTION: Be prepared to collect escaping coolant.




















4. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.

5. Refer to: Cooling System Partial Draining, Filling and Bleeding - V8 5.0L Petrol (303-03C Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol, General Procedures).

6. Refer to: Fender Splash Shield (501-02 Front End Body Panels, Removal and Installation). www.JagDocs.com

Published: 14-Apr-2014
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Coolant Expansion Tank
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Using a syringe, remove the cooling fluid from the expansion tank.


3. CAUTION: Take extra care not to damage the
component.
Torque: 7 Nm






























4.

Published: 11-May-2011
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Cooling Fan Motor and
Shroud Vehicles With: Supercharger
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


2. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.

3. Refer to: Radiator Splash Shield (501-02 Front End Body Panels, Removal and Installation).


4. NOTE: Some variation in the illustrations may occur, but
the essential information is always correct. www.JagDocs.com

Published: 19-Nov-2013
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Cooling Module Vehicles
With: Supercharger
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Refer to: Air Conditioning (A/C) System Recovery, Evacuation and Charging (412-00 Climate Control System - General Information, General Procedures).


3. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.


4. NOTE: Some variation in the illustrations may occur, but
the essential information is always correct.


























5. WARNINGS:


Since injury such as scalding could be caused by escaping steam or
coolant, do not remove the filler cap from the coolant expansion tank
while the system is hot.


Be prepared to catch escaping fluid.

Published: 07-Aug-2012
Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol - Coolant Pump Vehicles
With: Supercharger
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


2. WARNING: Do not work on or under a vehicle supported only by a jack.
Always support the vehicle on safety stands.
Raise and support the vehicle.

3. Refer to: Cooling System Partial Draining, Filling and Bleeding - V8 S/C 5.0L Petrol (303-03C Engine Cooling - V8 5.0L Petrol/V8 S/C 5.0L Petrol, General Procedures).

4. Refer to: Air Cleaner Outlet Pipe T-Connector (303-12D Intake Air Distribution and Filtering - V8 S/C 5.0L Petrol, Removal and Installation).

5. Refer to: Air Cleaner Outlet Pipe RH (303-12C Intake Air Distribution and Filtering - V8 5.0L Petrol, Removal and Installation).

6. Refer to: Air Cleaner Outlet Pipe LH (303-12C Intake Air Distribution and Filtering - V8 5.0L Petrol, Removal and Installation).

7. Refer to: Air Cleaner LH (303-12C Intake Air Distribution and Filtering - V8 5.0L Petrol, Removal and Installation).

8. Refer to: Air Cleaner RH (303-12C Intake Air Distribution and Filtering - V8 5.0L Petrol, Removal and Installation).

9. Refer to: Supercharger Belt (303-05, Removal and Installation).

10.