1994 JAGUAR XJ6 door lock

park assist driver seat adjustment start stop button relay OBD port navigation system

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JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Climate Control Systems
SECTION CON TENTS
Subsection Title SRO Page
14.1 ............. System Description ................................................................... 1
14.2 .............

Climate Control Systems
SECTION CON TENTS
Subsection Title SRO Page
14.1 ............. System Description ................................................................... 1
14.2 ............. Component Descriptions .............................................................. 3
14.2.1 ............ Control Panel ........................................................................\
3
14.2.2. ........... Control Panel Inputs / Outputs ......................................................... 3
14.2.3. ........... Solar Sensor ........................................................................\
. 4
14.2.4. ........... Engine Speed Signal .................................................................. 4
14.2.5 ............ Ambient Temperaturesensor ........................................................... 4
14.2.6 ............ Vehicle Speed Signal ................................................................. 4
14.2.7.
........... Evaporator Temperature Sensor ......................................................... 4
14.2.8. ........... Heater Matrix Temperature Sensor ...................................................... 5
14.2.9.
........... Coolant Temperature Signal ............................................................ 5
14.2.10
.......... Compressor ONSignal ................................................................ 5
14.2.11 ........... Motorized ln-car Aspirator ............................................................ 5
14.2.12 .......... CompressorLockSignal ............................................................... 5
14.2.13
.......... Refrigerant Pressure Switch ............................................................ 5
14.2.14
.......... Water Valve ........................................................................\
. 5
14.2.15 .......... Water Pump ........................................................................\
. 5
14.2.16
.......... Servo Motor Control .................................................................. 6
14.2.17 .......... Blower Motor Control ................................................................ 6
14.2.18 .......... Differential Control ................................................................... 6
14.2.19
.......... Heated Rear Window, Door Mirrors and Front Screen ...................................... 6
14.3 ............. Climate Control Module Connections ................................................... 7
14.4 ............. Climate Control System Test .......................................................... 10
14.4.1
............ Fault Code Extraction and Deletion Procedure ........................................... 10
14.5
............. Fault Codes ........................................................................\
11
14.6 ............. Actuator Check ..................................................................... 12
14.7
............. Diagnostic Tests .................................................................... 13
14.7.1
............ Fault Code 11 ...................................................................... 13
14.7.2.
........... Fault Code 12 ...................................................................... 14
14.7.3
............ Fault Code 13 ...................................................................... 15
14.7.4.
........... Fault Code 14 ...................................................................... 16
14.7.5
............ Fault Code 15 ...................................................................... 16
14.7.6
............ Fault Code21 ...................................................................... 17
14.7.7 ............ FaultCode22 ...................................................................... 17
14.7.8 ............ Fault Code23 ...................................................................... 18
14.7.9. ........... Fault Code 24 ...................................................................... 18
X300 EDM i Issue 1 August 1994

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JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Climate Control Systems
14.2.16 Servo Motor Control
The system incorporates several servo motors which direct the flow of air through the air conditioning system. The
motors are driven by

Climate Control Systems
14.2.16 Servo Motor Control
The system incorporates several servo motors which direct the flow of air through the air conditioning system. The
motors are driven by A / CCM signals in either a clockwise or anti-clockwise direction.
Servo motor position is monitored via
a feedback potentiometer situated within the motor housing.
The system servos comprise:
o RH and LH Air intake servos (Fresh / Recirc.).
0 Centre vent servo.
o Defrost (screen vent) servo.
0 Footservo.
0 Cool air by-pass servo.
14.2.17 Blower Motor Control
The A/ CCM controls two blower motors, delivering airflow
to the evaporator / heater unit, at variable fan speeds. The
blower motors are regulated by power transistor modules
which provide linear variation of blower speed; the blower
speed
is increased or reduced progressively in response to
vehicle speed, minimising the ram effect of forward motion.
The blower motors are inhibited when engine coolant tem
- perature is below 30°C and heating is requested.
14.2.18 Differential Control
The differential control is mounted on the facia centre vent. It is used to control the temperature difference between the
upper and lower outlets. Fig.
1 Servo
Motor
14.2.19 Heated Rear Window, Door Mirrors and Front Screen
The Heated Rear Window (HRW) function can only be activated with the ignition on and the engine running. Operation of the HRW switch operates the status condition LED on the control panel and switches on the HRWfor approximately 21 minutes. Selection of the HRW also operates the door mirror heaters for approximately 11 minutes. The operation
can be cancelled by switch re-selection or ignition off. System off does not cancel the HRW operation.
The Heated Front Screen
(HFS) function can only be activated with the ignition on and the engine running, and either
‘defrost’ mode selected or HFS selected. Each half, left and right hand split, switches on for approx. 6.5 minutes. The
operation can be cancelled by switch re-selection or ignition off. System off does not cancel the HFS operation.
0
0
Issue 1 August 1994 6 X300 EDM

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JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Climate Control Systems
Climate Control Module Connections, continued
35 (16-way) Input Solar sensor
36 (16
-way) Input Centre vent servo motor feedback po- tentiometer
37
(16-way) Input RH

Climate Control Systems
Climate Control Module Connections, continued
35 (16-way) Input Solar sensor
36 (16
-way) Input Centre vent servo motor feedback po- tentiometer
37
(16-way) Input RH air intake servo motor feedback po- tentiometer F / R
38 (16-way) Not used
39 (16
-way) Input Cool air bypass servo motor feedback
potentiometer
I 40(16-way) llnput I Coolant temperature signal
1 41 (16-way) llnput I RH blower motor voltage feedback
I 42 (16-way) I Output I RH blower motor drive signal
I 43(16-way) I Input
I Differential potentiometer
44 (16
-way) Input Defrost servo motor feedback poten-
tiometer
45
(%-way) Input LH air intake servo motor feedback po- tentiometer - F / R
46 (16-way) Not used
47 (16
-way) Input Foot servo motor feedback potentiome-
ter
48 (16
-way) Not used
49 (16
-way) Input LH blower motor voltage feedback
50 (16
-way) Output LH blower motor drive signal
51 (26
-way) Input Compressor ON signal
52 (26
-way) Output Water valve
53 (26
-way) Output RH Blower motor relay
54 (26
-way) Output Heated front screen relays
55 (26
-way) Output Heated Door Mirror relay
Specification
Open collector R = 578, connected to
IGN, activated low
Open collector
R = IKn, connected to
IG N, activated high
Open collector R = IKQ, connected to
IGN, activated high
Voltage /temperature values
Voltage
/ temperature values
Open collector
R = IKQ, connected to
IGN, activated high
AJ16
- Ground (lock sensor not fitted)
VI2 - Ign. voltage (lock sensor fitted)
Voltage
/ temperature values
Voltage
/ temperature values
Voltage
/ temperature values
Resistance 6W.
&IO%
0% closed - IV, 100% open - 4V
Resistance 6Kn
+IO%.
0% closed - IV, IOW0 open - 4V
Pulse
width modulated signal I
OV to 3V max. I
Resistance IOW. &IO%.
Min. IV, Max. 4V
Resistance
6W. +IO%.
0% closed - IV, IOW0 open - 4V
Resistance 6W.
+IO%.
Resistance 6W. &IO%.
0% closed - IV, 10096 open - 4V
I
Battery voltage when compressor ON
1 amp at 12 volts
Load
36Q at 12V IGN, activated low
0
0
0
0
Issue 1 August 1994 8 X300 EDM

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JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Electrical IT
SECTION CONTENTS
Sub
-Section 15.2 lnsfrumenfs
Subsection Title SRO Page
15.2 ............. Instruments .................................................................... 15.2-1

Electrical IT
SECTION CONTENTS
Sub
-Section 15.2 lnsfrumenfs
Subsection Title SRO Page
15.2 ............. Instruments .................................................................... 15.2-1
15.2.1
............ Introduction .................................................................... 15.2-1
15.2.2
............ Instrument Pack Connectors - Pin Locations ......................................... 15.2-3
15.2.3
............ Component Description .......................................................... 15.24
15.2.3.1 .......... Speedometer ................................................................... 15.24
15.2.3.2 .......... Tachometer .................................................................... 15.24
15.2.3.3
.......... Engine Oil Pressure and Warning Lamp ............................................. 15.24
15.2.3.4 .......... Engine Coolant Temperature ...................................................... 15.24
15.2.3.5 .......... Fuel Tank Level Gauge and Warning Lamp .......................................... 15.24
15.2.3.6
.......... Battery Voltage Gauge and Warning Lamp .......................................... 15.24
15.2.3.7
.......... Liquid Crystal Display ........................................................... 15.24
15.2.3.8 .......... Trip Computer .................................................................. 15.2-5
15.2.4
............ Primary Warning Lamps (Illuminated Red) .......................................... 15.2-5
15.2.4.1
.......... Exhaust Temperature ............................................................ 15.2-5
15.2.4.2
.......... Low Oil Pressure ................................................................ 15.2-5
15.2.4.3
.......... Seat Belt ....................................................................... \
15.2-5
15.2.4.4
.......... Trunk Lid Open ................................................................. 15.2-5
15.2.4.5
.......... DoorAjar ...................................................................... 15.2-5
15.2.4.6
.......... Engine Coolant LeveL ............................................................ 15.24
15.2.4.7
.......... SRS Airbag Fault ................................................................ 15.24
15.2.4.8 .......... Charging Fault .................................................................. 15.24
15.2.4.9 .......... Brake System Fault .............................................................. 15.24
15.2.4.10 ......... Bark Brake ..................................................................... 15.24
15.2.5. ........... Secondary Warning Lamps (Illuminated Amber) ...................................... 15.2-7
15.2.5.1
.......... Transmission Fault ............................................................... 15.2-7
15.2.5.2
.......... Washer Fluid Level .............................................................. 15.2-7
15.2.5.3
.......... Bulb Fail ....................................................................... \
15.2-7
15.2.5.4
.......... Traction Control Fail ............................................................. 15.2-7
15.2.5.5
.......... Anti-lock Fail .................................................................. 15.2-7
15.2.5.6
.......... Low Fuel Level ................................................................. 15.2-7
15.2.5.7
.......... Check Engine ................................................................... 15.2-7
15.2.6.1
.......... Transmission Sport Mode ......................................................... 15.2-8
15.2.6.2
.......... Traction Control OFF ............................................................ 15.2-8
15.2.6.3
.......... Direction Indicators ............................................................. 15.2-8
15.2.6.4
.......... Main Beam .................................................................... 15.2-8
15.2.6
............ Status
and Warning Lamps ........................................................ 15.2-8
m
a
0
e
0
X300 EDM ii Issue 1 August 1994

Page 103 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Electrical IT
SECTION CON TENTS
Subsection 15.2 Instruments (continued)
Sub-Section Title SRO Page
15.2.7 ............ Fault Diagnosis ...........................................................

Electrical IT
SECTION CON TENTS
Subsection 15.2 Instruments (continued)
Sub-Section Title SRO Page
15.2.7 ............ Fault Diagnosis ................................................................. 15.2-9
15.2.7.1
.......... Active High /Low Inputs ......................................................... 15.2-9
15.2.8.
........... Instrument Pack Pin-point Tests .................................................. 15.2-1 0
15.2.8.1 .......... Oil Pressure, Battery Condition, Coolant Temperature and Fuel Gauges ................. 15.2-1 0
75.2.8.2
.......... Speedometer .................................................................. 15.2-10
15.2.8.4
.......... Liquid Crystal Display .......................................................... 15.2-17
15.2.8.6
.......... Door Open Warning Lamp ...................................................... 15.2-12
15.2.8.7
.......... Exhaust Temperature Warning Lamp .............................................. 15.2-1 3
15.2.8.8 .......... Luggage Compartment Warning Lamp ............................................. 15.2-14
15.2.8.9
.......... Seat Belt Warning Indicator ...................................................... 15.2-1 5
15.2.8.3
.......... Tachometer ................................................................... 15.2-11
15.2.8.5
.......... Trip Computer ................................................................. 15.2-11
15.2.8.70
......... Park Brake Indicator ............................................................ 15.2-16
15.2.8.71
......... Main Beam Indicator ........................................................... 15.2-17
75.2.8.12
......... Direction Indicator Tell Tales ..................................................... 15.2-18
15.2.8.14
......... Washer Fluid Level Indicator ..................................................... 15.2-20
15.2.8.16
......... Brake Fluid Level Indicator ...................................................... 15.2-22
75.2.8.17
......... General Bulb Failure Indicator ................................................... 15.2-23
15.2.8.18
.........
75.2.8.19 .........
15.2.8.20 ......... Traction Control OFF Tell-tale .................................................... 15.2-24
0
75.2.8.13 ......... Generator IND Voltage Indicator ................................................. 15.2-19
7 5.2.8.15 ......... Engine Coolant Level indicator ................................................... 15.2-2 1
Transmission Sport mode Indicator ................................................ 75.2-24
Traction Control Failure Warning Lamp
............................................ 15.2-24
15.2.8.21
......... Anti-lock Failure Warning Lamp .................................................. 15.2-24
15.2.8.22
......... Check Engine Warning Lamp .................................................... 75.2-24
Issue 1 August 1994 iii X300 EDM

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JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Electrical IT
15.2.2 INSTRUMENT PACK CONNECTORS
0
Socket A (24-way)
Pin Circuit Input
1. Fuel used 2. 12V ignition feed 3. Ground 4. Ground 5. Battery feed 6. 12V auxiliary feed 7. Anti-lock fai

Page 158 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual 15.2.3.8 Trip Computer
The instrument pack provides the trip computer functions, selected via the momentary stalk input and two action in- puts: Reset and Odo.
The signal used for eac

15.2.3.8 Trip Computer
The instrument pack provides the trip computer functions, selected via the momentary stalk input and two action in- puts: 'Reset' and 'Odo'.
The signal used for each function are:
Distance:
Computed from the speed signal from the ABS control module.
Average Speed
Computed from the speed signal from the ABS control module.
Fuel Used
Computed from a pulsed signal from the engine management system.
Average Fuel Consumption
Computed from the speed signal and the fuel used signal.
Range
Computed from the speed signal, the fuel used signal and fuel level.
instantaneous Fuel
Computed from the speed signal and the fuel used signal.
15.2.4 PRIMARY WARNING LAMPS - ILLUMINATED RED
15.2.4.1 Exhaust Temperature (Japan only)
The exhaust temperature input (pin 23,48 way connector) is provided by the catalyst switching module (pin 6), which
pulls the line low when a fault occurs.
15.2.4.2 Low Oil Pressure
This signal comes direct from the variable resistance type oil pressure sensor. The sensor resistancevalues range from
7552 to 310Q.
15.2.4.3 Seat Selt
The seat belt input (pin 15,48 way connector) is provided by the seat belt stalk switch, via the body processor unit
(pin 26).
The seat belt lamp will illuminate when
a low signal is seen on the instrument pack input.
15.2.4.4 Trunk Lid Open
A microswitch located in the trunk lid lock provides a signal (pin 16,4&wayconnector) causing the trunk lid open indi- cator to illuminate whenever the trunk lid is opened or not closed correctly.
The trunk lid open indicator will illuminate when
a low signal is seen on the instrument pack input.
15.2.4.5 Door Ajar
Switches located in each door closing mechanism supply signals to indicate when any door is either open, or has not
been closed correctly. The system operates from two signals; an input from the driver's door (pin 46, 48-way con- nector) or a combined signal input from the passenger doors (pin 47,4&way connector).
The door ajar lamp will illuminate when
a low signal is detected on either of the two inputs.
X300 EDM 15.2 - 5 Issue 1 August 1994

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JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual 0
I I- - I 13 l-
BLOCK B (W-WAY, GREY) continued
7 Tiltawayonsignal Input Switched to ground
8 Gear selector not in park Input Switched to ground
9 Park brake ON signal Input
Switched to

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