1998 JAGUAR X308 battery

Heating and Ventilation - Heater Core and Evaporator Core Housing
Removal and Installation
Removal
1. Disconnect battery ground cable (IMPORTANT, see SRO
86.15.19 for further information).
2. Recover refrigerant from air co nditioning system; refer to
82.30.30.
3. Drain radiator coolant only; refer to 26.10.01 or (SC)
26.10.01.
4. Remove instrument panel for access, refer to 76.46.01.

5. From under the hood: Disconnect air conditioning pipes at the
evaporator.
1. Remove bolts.
2. Discard O-rings.
3. Install suitable blanking plugs.

6. Disconnect heater hoses from heater matrix pipes.
1. Release spring band clips and disconnect heater hoses.
2. Install suitable blanking plugs.

7. From inside the vehicle: re move driver footwell duct.
Remove screw.
Remove duct.
8. Remove upper steering column lower fixings.
1. Remove nut.
2. Remove bolt.

19. Reconnect air conditioning pipes at the evaporator.
Remove blanking plugs.
Install, fully seat and lubr icate new O-ring seals.
Install bolts.
20. Install instrument pane l; refer to 76.46.01.
21. Recharge air conditioning system; refer to 82.30.30.
22. Re-fill cooling system; refer to 26.10.01 or (SC) 26.10.01.
23. Reconnect battery ground cable (IMPORTANT, see SRO
86.15.15 for further information).

Air Conditioning - Air Conditioning (A/C) Compressor
Removal and Installation
Removal
1. Disconnect battery ground cable (IMPORTANT, see SRO
86.15.19 for further information).
2. Recover refrigerant from air co nditioning system; refer to
82.30.30.
3. Remove supercharger drive belt (where fitted); refer to
18.50.08.
4. Remove front end accessory dr ive belt; refer to 12.10.40 or
(SC) 12.10.40.

5. NOTE: A commercially availa ble brake pipe clamp is
recommended. Do not over tighten.
Clamp power steering reservoir to pump feed hose.
6. Raise vehicle for access

7. NOTE: Position drain tin to collect the fluid when union nut is
released.
Disconnect steering rack hose from pump. 1. Release union nut.
2. Discard O-ring.
3. Install suitable blanking plugs.

8. Disconnect clutch harness connector from compressor.
1. Disconnect connector.
9. Disconnect lines from compressor.
Discard O-rings.
Install suitable blanking plugs.

8. Install front end accessory drive belt; refer to 12.10.40 or (SC)
12.10.40.
9. Install supercharger drive belt (where fitted); refer to
18.50.08.
10. Reconnect battery ground cable (IMPORTANT, see SRO
86.15.15 for further information).
11. Recharge air conditioning system; refer to 82.30.30.
12. Check / bleed / top up power stee ring fluid reservoir; refer to
211-02.

Air Conditioning - Condenser Core
Removal and Installation
Removal
1. Disconnect battery ground cable (IMPORTANT, see SRO
86.15.19 for further information).
2. Drain radiator coolant only; refer to 26.10.01 or (SC)
26.10.01.
3. Recover refrigerant from air co nditioning system; refer to
82.30.30.
4. Release both gas struts, set the engine cover fully forward to
the service access position an d support with a wooden (or
similar) strut.
5. CAUTION: Take care not to damage hood or radiator
grille.
Remove twin fan and motor as sembly; refer to 26.25.12.

6. Disconnect radiator bleed hose.
Release connection.
7. Remove retaining clip which secures transmission oil cooler
upper and lower pipes.

8. Disconnect transmission oil cooler lower pipe from radiator.
1. Release union nut and disconne ct pipe.
Discard O-ring seal.
2. Install suitable blanking plugs.
9. From above the vehicle, discon nect transmission oil cooler
upper pipe from radiator.
1. Release union nut and disconne ct pipe.
Discard O-ring seal.
2. Install suitable blanking plugs.

15. Remove the temporary wooden support strut and reconnect
gas struts to the hood.
16. Check transmission fluid level an d top up as required; refer to
307A-01 (N/A) or 307B-01 (S/C), operation 44.24.02.
17. Refill the cooling system; refer to 26.10.01 or (SC) 26.10.01.
18. Recharge air conditioning system; refer to 82.30.30.
19. Reconnect battery ground cable (IMPORTANT, see SRO
86.15.15 for further information).

Air Conditioning - Receiver Drier
Removal and Installation
Removal
Installation
1. Disconnect battery ground cable (IMPORTANT, see SRO
86.15.19 for further information).
2. Remove air cleaner assemb ly; refer to 19.10.05.
3. Recover refrigerant from air co nditioning system; refer to
82.30.30.

4. Disconnect receiver / drier to evaporator line from receiver /
drier bottle.
Remove bolt.
Disconnect hose and discard O-ring seal.
Install suitable blanking plugs.

5. Disconnect condenser to receiver / drier line from receiver /
drier bottle.
Remove bolt.
Disconnect hose and discard O-ring seal.
Install suitable blanking plugs.

6. Remove drier bottle assembly.
Remove bolts.
Remove assembly.
Remove mounting rubbers.
1. NOTE: Install new O-ring seals and lubricate with clean
compressor oil.
Installation is reverse of removal procedure.
2. Tighten fixings to specification (8-10 Nm).

Connector Pin Identity Chart for FC043

Control Panel Communication
The control panel provides operator interface with the climate control system.
Control panel operation is described in detail in the D section.
Control Panel Inputs (I/P) / Outputs (O/P)
Pin NumberCircuitCircuit Function
001Ignition positive supply
002Battery isolate supply
003Auxiliary ground
004Auxiliary ground to control panel
005Battery supply
006Engine speed input
007Electrical load drive inhibit
008+5V sensors
009Clutch request to ECM
010Diagnostic L-line
011Not used
012Ignition (positive) to control panel
013System ground
014Ground to control panel
015Air conditioning isolation relay
016Vehicle speed
017Pressure switch
018Aspirator motor (In-car sensor)
019Sensor ground
020Logic ground for diagnostic lines
021Diagnostic K-line
022Not used
Pin NumberCircuitCircuit Function
1Input CLOCK
2Input START
3Input DATA IN
4Output DATA OUT
5Input ignition (positive)
6Input auxiliary (negative)
7Ground
8Dimmer
9Dimmer override
10Not used
11Not used
12Not used