Windshield JAGUAR X308 1998 2.G User Guide

8.8. Automatic
Symbol indicates when the control of , temperature, fan speed and air distribution are all in Auto mode.
9. 9. External
There are two modes of external ambient temperature selection;
Quick Display. Pressing the button for <1.5 seconds (con firmed by a single bleep) will display the external
temperature for 4 seconds.
Continuous Display. Pressing and holding the button fo r >1.5 seconds (confirmed by two beeps) displays the
external ambient temperature continuously, the value of which will be updated every 4 seconds given that vehicle
road speed is > 25 km/h. Pressing the button again fo r <1.5 seconds resets to the previous display.
• NOTE: Continuous external temperature display will be cancel led when the ignition is switched OFF but not during engine
cranking.
10. 10. A/C
This push-on / push-off button will either select or deselect (as indicated by the state lamp) the refrigeration system.
The refrigeration system is automatically engaged when the Auto button is pressed.
• NOTE: Interior misting of screens may be reduced by continuous operation of th e refrigeration system.
11. 11. Auto
When selected and the state lamp lit, A/C mode will be operat ional and control of vent outlet temperature, fans speed and
air distribution will be automatic.
AUTO mode will disengage should manual air distribution or defrost buttons be operated or the manual fan speed knob be
rotated.
• NOTE: Automatic temperature control is constantly main tained irrespective of selected manual overrides.
12. 12. Defrost
Push-on push-off button, which when engaged will direct all air to the front and side glass at maximum fan speed. The
heated windshield (if fitted) will also be energized for a timed cycle of 6,5 minute s, but may be cancelled by pressing the
HEATED WINDSHIELD (F) button. Pressing 'DEF' again will retu rn to the last setting with automatic temperature control
being maintained.
Directing warm and humid air onto a cold screen can produce interior misting of screens. Operating the climate control
system without the refrigerati on system operating will exacerbate this problem.
• NOTE: Directing cold air onto the screen in warm humid conditions can produce external condensation.
13. 13. Heated Windshield (F)
Pressing the heated windshield button (whe re fitted) will energize the electrically heated windshield elements for a timed
cycle of 6,5 minutes; pressing the button again will cancel the request. Should the engine stall or the ignition be turned
OFF, the timer will be cleare d and the function cancelled.
• NOTE: The heated windshield may be activated with the cl imate control system OFF but the engine must be running.
In very cold ambient temperatures, icing of the interior of the glass is possible when the climate control system is operating
in AUTO mode; to reduce this poss ibility the A/CCM provides automatic operation of the heated windshield.
With the following conditions met, the heated windshield will automatically energize but the state lamp will NOT be lit.

Parts List
Air temperature from the centre (and EOD) vents is slightly cooler than the foot outlets; however this temperature cannot
be varied independently.
The EOD vents, not shown, feature similar controls.
Automatic Operation
Initial setting
Should a new A/CCM be fitted, it will 'power-up' in the OFF mode; switching ON will result in the following settings:
After initial start up the system operating conditions will be st ored in the A/CCM to the conditions which prevailed prior to
ignition OFF.
Maximum Heating / Cooling
Maximum Heating (temperature setting HI)
ItemPart NumberDescription
1—Airflow control
2—Air direction control
FeatureStatus
Setting temperature24°C or 75°F
LH and RH blower assembly recirculation / fresh flapFresh mode
Control modeAutomatic 'AUTO' displayed
BlowerAuto
Compressor outputA/C ON
Heated windshield and mirrorsOFF
Water valveAuto temperature control
ItemControlOverride Allowed
Water valveFully open (not energised)-
BlowerMaximumYes
Fresh / recircFreshYes
Air distributionFeet (state lamp OFF)Yes
A/C systemOFFYes
Cool air by-passFully closed-

Inputs / Outputs
1.1. Engine speed:
Input to the A/CCM from the ECM. Heated windshield and backli ght will be inhibited when engine speed < 50 RPM.
2. 2. Vehicle speed:
Input from the instru ment cluster. Blower speed control to minimise the effects of ram ai r. Road speed compensation is inhibited when maximum
cooling LO, or maximum heating HI, is selected; also inhi bited in defrost mode with airflow set to maximum.
Used to determine the frequency at which the exterior temperature display is updated.
3. 3. Coolant temperature (signal derived from ECM via instrument cluster):
Input from the heater matrix temperature sensor used to control water valve and thus vent temperatures. Used to monitor the temperature of coolant at the heater matrix to assist the control of air outlet temperature. Used to inhibit the blowers when heating is selected and the engine coolant temperature is below 30°C. Is used to provide progressive increase in blower speed up to 60°C. To inhibit the water valve and pump when the coolant temperature is = < 10°C
Sensors and Controls
Solar Sensor

Control Components - Control Components
Diagnosis and Testing
Connector Pin Identity Chart for AC001

Connector Pin Identity Chart for AC002

Pin NumberCircuitCircuit Function
001Compressor ON signal
002Coolant valve
003RH Blower motor relay
004Heated windshield relays (where fitted)
005Heated door mirror relay
006Defrost servomotor (positive)
007Center vent servomotor (positive)
008LH air intake servomotor fre sh / recirculation (positive)
009RH air intake servomotor fresh / recirculation (positive)
010Not used
011Not used
012Foot servomotor (positive)
013Cool air bypass servomotor (positive)
014Not used
015Not used
016LH Blower motor relay
017Coolant pump motor relay
018Heated backlight relay
019Defrost servomotor (negative)
020Center vent servomotor (negative)
021LH air intake servomotor fresh / recirculation (negative)
022RH air intake servomotor fresh / recirculation (negative)
023Not used
024Not used
025Foot servomotor (negative)
026Cool air bypass servomotor (negative)

Engine Management Fuse Box Relay

Engine Compartment - Front Relays

Engine and Transmission Control Module Compartment Relays
Relay NoColorCircuit
1BrownEMS control relay
Relay NoColorCircuit
1BlackWindshield wiper fast/slow
2BlackWindshield wiper on/off
Relay NoColorCircuit
1BlueSC coolant water pump
2BrownFuel injection main
3BrownIgnition coils
4BrownThrottle motor
5BrownStarter solenoid
6BrownAir conditioning compressor clutch

Front Firewall Relays

Heelboard Fuse Box Relays - Right hand side
* not illustrated
Heelboard Fuse Box Relays - Left hand side
Relay NoColorCircuit
1BlackWindshield RH heater (where fitted)
2BlackWindshield LH heater (where fitted)
Relay NoColorCircuit
1BlueDoor mirror heater
2BlueAir conditioning RH blower
3BlueLeft rear seat lumbar deflate (where fitted) *
4BrownAuxiliary +
5BlueAir conditioning LH blower
Relay NoColorCircuit
1BrownIgnition +
2VioletDoor mirror fold flat (where fitted)
3VioletAir conditioning isolate
4VioletDoor locks

Front End Body Panels - Cowl Panel Grille
Removal and Installation
Installation

1.
Open the hood and fit fender covers.
2. Remove the wiper arm and blade assembly. Refer to
84.15.44.90.
3. Slacken and remove the five pl enum cover securing screws.

4. Position the plenum cover for access and disconnect windshield
washer pump tube from pl enum cover connector.
5. Remove plenum cover from vehicle.
6. Remove screenwasher conne ctor from plenum cover.
7. Remove plenum cover spacers,
1. Fit washer hose connector to plenum cover.
2. Fit and fully seat plenum cover spacers.
3. Position plenum cover for access and fit windshield washer
pump to plenum connector hose.
4. Fit plenum cover ensuring that it seats correctly in upper seal.
5. Fit and tighten securing screws.
6. Fit washer hose to plenum connector.
7. Fit wiper arm and blade. Refer to 84.15.44.90.
8. Close hood and remove fender covers.

Rear View Mirrors - Auto-Dimming Interior Mirror
Removal and Installation
Removal
Installation

1.
Remove roof console for access and disconnect interior mirror
harness multiplugs. Refer to 76.13.69.90.

2. Remove upper cover from mirror stem.
3. Remove rain sensor unit. Refer to Section 501.16.

4. CAUTION: When removing mirror from base, care must
be exercised to ensure that base is not detached from windshield.
Applying firm downward pre ssure, remove mirror assembly
from base.
1. Position mirror at bottom of base and apply firm upward
pressure to fully seat and secure in position.
2. Install upper cover to mirror stem.
3. Position roof console at head er and connect mirror harness
multiplugs.
4. Install rain sensor unit. Refer to Section 501.16.
5. Install roof console. Refer to 76.13.69.

Rear View Mirrors - Interior Mirror
Removal and Installation
Removal
CAUTION: When removing mirror from base, care must be exercised to ensure that base is not detached from
windshield.
Installation



1. Remove upper cover from mirror stem.

2. Remove rain sensor unit. Refer to Section 501.16.

3. Applying firm downward pre ssure, remove mirror assembly
from base.
1. Position mirror at bottom of base and apply firm upward
pressure to fully seat and secure in position.
2. Install rain sensor unit. Refer to Section 501.16.
3. Install upper cover to mirror stem.

Rear View Mirrors - Interior Mirror Mounting Block
Removal and Installation
Removal
Installation
1. Remove battery cover and disc onnect ground cable from
battery terminal. Refer to 86.15.19.
2. Position a protective cover over top of facia.
3. Remove roof console for ac cess. Refer to 76.13.69.90.
4. Remove rain sensor unit. Refer to Section 501.16.
5. Remove mirror from mounting block. Refer to 76.10.51 or
76.10.56 (electrochromic).

6. Apply a suitable solvent around edge of mounting block.

7. Commencing at the top and exercising care to avoid windshield
damage, use a thin plastic knife to ease block free.
8. Using a suitable solvent, clean residual adhesive from block
mounting area.

1. Using masking tape, mark block mounting area on windshield.
2. Apply Permabond F Grade 5 Initiator to mounting area of
windshield.
3. Apply a bead of Permabond F246 to bottom and each vertical
side of block over 2/3 of block height.