Jaguar XJS 1996 4.0L Workshop Manual

jaguar :: Jaguar XJ-S Convertible (XJ27) L6-4.0L
(1996)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Locations

Alarm Module: Locations

Security system ECM

The ECM is located in the right rear corner of the trunk.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Diagrams > Diagram Information and Instructions

Alarm Module: Diagram Information and Instructions

Key To Symbols And Codes

Symbols and Codes

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Diagrams > Diagram

Information and Instructions > Page 9

XJ-S Convertible (XJ27) L6-4.0L (1996)

Wiring Color Codes

N Brown
B Black
W White
K Pink
G Green
R Red
Y Yellow
O Orange
S SSate
L Light

U Blue
P Purple

When a wire has two or more color code letters, the first letter indicates the main color and the subsequent letter(s) indicate the tracer color(s).

Wiring Harness CodesCode

Description

AB ABS harness
AC Air conditioning harness
BF Boot fuse harness
BL Boot Lid harness
BN Binnacle harness
CC Cruise Control harness
CH Control harness
CS Column switch gear harness
DD Driver's door harness
DS Driver's seat harness
EM Engine Management harness
FP Fuel pump harness
GH Gearbox harness
GL Gearbox link
GS Gear select harness
HH Hood harness (convertible top)
HL High level stop light harness
LB Bulkhead harness (left-hand drive)
LF Left forward harness
LI Lucas injection harness
PD Passenger's door harness
PS Passenger's seat harness
RC Rear courtesy light harness
RF Right forward harness
RH Rearward harness
SB Seat belt harness
SC Security system harness
SH Seat harness
SM Driver's seat control harness
SN Passenger's seat control harness
SS Steering column switch gear harness
ST Starter motor harness
ZA Shorting plug
ZC Shorting plug
ZD Shorting plug

Connector Codes

HARNESS CODE + CONNECTOR NUMBER + PIN NUMBER
EXAMPLE:LB13-24 (Pin Number Is Separated By A Dash)

Note : Absence of a dash and a pin number indicates a single wire connector.

Splice Codes

HARNESS CODE + S + IDENTIFICATION NUMBER

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Diagrams > Diagram

Information and Instructions > Page 10

XJ-S Convertible (XJ27) L6-4.0L (1996)

EXAMPLE: LBS3 (No Dash Is Used)

Ground Codes

HARNESS CODE + G + IDENTIFICATION NUMBER
EXAMPLE: LBG78 (No Dash Is Used)

Diode Codes

HARNESS CODE + D + IDENTIFICATION NUMBER
EXAMPLE: LSD3 (No Dash Is Used)

Reference Symbols

Two reference symbols are used to indicate the reminder of the circuit (Feed And Ground) and refer the reader to one of two preliminary figures.

Battery Power Distribution

Ignition Switched Power Distribution

Reference Flags

Reference Flags

This Symbol refers the reader to a figure number only. It does not refer to a flag with the same number on a different figure.

As used in figure 1, 2 and 3, the flag refers to a figure number where the circuit is continued. In this instance, the reader matches the Box orDiamond numbers to trace the circuit.

In most other cases, it is not necessary to refer to another figure for completion of a circuit and circuits which share components. Most of thecircuits where this situation occurs are overlapped to avoid the necessity for cross-referencing to another figure.

Data Pages

Every wiring diagram has a corresponding data page to its left in the book. This information aids the reader in identifying and locatingcomponents, connectors and ground points. Additionally, where applicable, processor and logic unit Input / Output information is provided to aidthe reader in understanding circuit operation. This information should not be used for diagnostic purposes.

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Relay > Component Information > Locations > From VIN 198335

Convertible Top Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Relay > Component Information > Locations > From VIN 198335 > Page 16

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Relay > Component Information > Locations > From VIN 198335 > Page 17

Convertible Top Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Body and Frame > Convertible Top Relay > Component Information > Locations > From VIN 198335 > Page 18

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Relay > Component Information > Locations > From VIN 198335

Seat Heater Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Relay > Component Information > Locations > From VIN 198335 > Page 23

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Relay > Component Information > Locations > From VIN 198335 > Page 24

Seat Heater Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Body and Frame > Seat Heater Relay > Component Information > Locations > From VIN 198335 > Page 25

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Locations > From VIN 198335

ABS Main Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Locations > From VIN 198335 > Page 31

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Locations > From VIN 198335 > Page 32

ABS Main Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS Main Relay > Component Information > Locations > From VIN 198335 > Page 33

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS / Traction Control Module <--> [Electronic Brake Control Module] > Component Information > Diagrams > Diagram Information and

Instructions

ABS / Traction Control Module: Diagram Information and Instructions

Key To Symbols And Codes

Symbols and Codes

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS / Traction Control Module <--> [Electronic Brake Control Module] > Component

Information > Diagrams > Diagram Information and Instructions > Page 38

XJ-S Convertible (XJ27) L6-4.0L (1996)

Wiring Color Codes

N Brown
B Black
W White
K Pink
G Green
R Red
Y Yellow
O Orange
S SSate
L Light

U Blue
P Purple

When a wire has two or more color code letters, the first letter indicates the main color and the subsequent letter(s) indicate the tracer color(s).

Wiring Harness CodesCode

Description

AB ABS harness
AC Air conditioning harness
BF Boot fuse harness
BL Boot Lid harness
BN Binnacle harness
CC Cruise Control harness
CH Control harness
CS Column switch gear harness
DD Driver's door harness
DS Driver's seat harness
EM Engine Management harness
FP Fuel pump harness
GH Gearbox harness
GL Gearbox link
GS Gear select harness
HH Hood harness (convertible top)
HL High level stop light harness
LB Bulkhead harness (left-hand drive)
LF Left forward harness
LI Lucas injection harness
PD Passenger's door harness
PS Passenger's seat harness
RC Rear courtesy light harness
RF Right forward harness
RH Rearward harness
SB Seat belt harness
SC Security system harness
SH Seat harness
SM Driver's seat control harness
SN Passenger's seat control harness
SS Steering column switch gear harness
ST Starter motor harness
ZA Shorting plug
ZC Shorting plug
ZD Shorting plug

Connector Codes

HARNESS CODE + CONNECTOR NUMBER + PIN NUMBER
EXAMPLE:LB13-24 (Pin Number Is Separated By A Dash)

Note : Absence of a dash and a pin number indicates a single wire connector.

Splice Codes

HARNESS CODE + S + IDENTIFICATION NUMBER

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS / Traction Control Module <--> [Electronic Brake Control Module] > Component

Information > Diagrams > Diagram Information and Instructions > Page 39

XJ-S Convertible (XJ27) L6-4.0L (1996)

EXAMPLE: LBS3 (No Dash Is Used)

Ground Codes

HARNESS CODE + G + IDENTIFICATION NUMBER
EXAMPLE: LBG78 (No Dash Is Used)

Diode Codes

HARNESS CODE + D + IDENTIFICATION NUMBER
EXAMPLE: LSD3 (No Dash Is Used)

Reference Symbols

Two reference symbols are used to indicate the reminder of the circuit (Feed And Ground) and refer the reader to one of two preliminary figures.

Battery Power Distribution

Ignition Switched Power Distribution

Reference Flags

Reference Flags

This Symbol refers the reader to a figure number only. It does not refer to a flag with the same number on a different figure.

As used in figure 1, 2 and 3, the flag refers to a figure number where the circuit is continued. In this instance, the reader matches the Box orDiamond numbers to trace the circuit.

In most other cases, it is not necessary to refer to another figure for completion of a circuit and circuits which share components. Most of thecircuits where this situation occurs are overlapped to avoid the necessity for cross-referencing to another figure.

Data Pages

Every wiring diagram has a corresponding data page to its left in the book. This information aids the reader in identifying and locatingcomponents, connectors and ground points. Additionally, where applicable, processor and logic unit Input / Output information is provided to aidthe reader in understanding circuit operation. This information should not be used for diagnostic purposes.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS / Traction Control Module <--> [Electronic Brake Control Module] > Component Information > Diagrams > Page 40

ABS / Traction Control Module: Description and Operation

ABS control module

4 3

The control module (CM) (), located beneath the modulator valve block (), is the system controller and processes all the information supplied fromthe external sensors and probes. Refer to the Control Module Connection Diagram. The signals from the four wheel speed sensors are independentlyprocessed by the CM, calculating numerical values which correspond directly to the wheel speed. These values are converted into control signals forpressure modulation during ABS control.

The CM continuously monitors ABS operation, lighting the ABS warning indicator and inhibiting or disabling the system when faults are detected. Ina fault condition, conventional braking is unaffected. The CM is self testing and cannot be fault diagnosed beyond 'black box' level, i.e. a faultymodule. The CM houses the solenoids which operate the inlet and outlet valves of the modulator valve block. There is no electrical connectionbetween the CM and the modulator valve block, but there is an electrical connection from the CM to the pump motor.
The CM functions include the following:

1. Providing control signals for the operation of ABS solenoid valves2. Calculating wheel speed from voltage signals transmitted by the wheel speed sensors3. Monitoring of all electrical components4. On Board Diagnostics (OBD}: storage of fault codes in a non-volatile memory.

The fault codes generated by the CM are stored in a non-volatile memory which can be read via the OBD link. The ABS warning indicator is lit if theCM connector is loose or not fitted.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS / Traction Control Module <--> [Electronic Brake Control Module] > Component

Information > Diagrams > Page 41

XJ-S Convertible (XJ27) L6-4.0L (1996)

Control Module Connection Diagram

Control module connections

Control module connections, numbered 1 to 28, provide the necessary input/output signals to enable the module to control and monitor ABSoperation.
Connections are as follows:

> Relays and Modules > Relays and Modules - Brakes and Traction Control > ABS / Traction Control Module <--> [Electronic Brake Control Module] > Component

Information > Diagrams > Page 42

XJ-S Convertible (XJ27) L6-4.0L (1996)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Hydraulic Brake Booster Pump Relay > Component Information > Locations > From VIN 198335

Hydraulic Brake Booster Pump Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Hydraulic Brake Booster Pump Relay > Component Information > Locations > From VIN

198335 > Page 47

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Hydraulic Brake Booster Pump Relay > Component Information > Locations > From VIN 198335 > Page 48

Hydraulic Brake Booster Pump Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Hydraulic Brake Booster Pump Relay > Component Information > Locations > From VIN

198335 > Page 49

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Cooling System > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335

Auxiliary Water Pump Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Cooling System > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335 > Page 55

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Cooling System > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335 > Page 56

Auxiliary Water Pump Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Cooling System > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335 > Page 57

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Cruise Control > Cruise Control Module > Component Information > Description and Operation

Cruise Control Module: Description and Operation

(SCCM)

The Speed Control Control Module , located behind the fascia, adjacent to the steering column, provides system control and an interface toexternal input signals from the instrument pack, gear selector module, traction control system, control switches, and foot pedal switches. The set speedvalue is retained in SCCM memory and continuously compared to actual vehicle speed. Adjustments are made, as necessary, to maintain set speed bycontrol of the vacuum pump and control valve.

Speed Control System Component Locations, Fig.1

1. Speed control switches2. Throttle linkage and bellows3. Vacuum dump valve4. Vacuum pump and control valve unit5. Speed control control module (SCCM)6. Brake switches7. Clutch switch (where installed)

> Relays and Modules > Relays and Modules - Cruise Control > Cruise Control Module > Component Information > Description and Operation > Page 62

Cruise Control Module: Service and Repair
SPEED CONTROL ECU

- Reposition the passenger footwell carpet for access to the ECU panel securing screws.

- Undo and remove the floor panel screws.

- Displace the panel and disconnect the ECU harness multi-plug.

- Release the retaining clip and displace and remove the unit.

- Align the new ECU, secure with retaining clip and connect the harness multi-plug.

- Reposition and secure the panel, reposition carpet.

> Relays and Modules > Relays and Modules - Cruise Control > Cruise Control Relay > Component Information > Description and Operation

Cruise Control Relay: Description and Operation

A relay to inhibit system operation in all transmission positions other than D, 2 and 3.

> Relays and Modules > Relays and Modules - HVAC > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335

Auxiliary Water Pump Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - HVAC > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335 > Page 71

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - HVAC > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335 > Page 72

Auxiliary Water Pump Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - HVAC > Auxiliary Water Pump Relay > Component Information > Locations > From VIN 198335 > Page 73

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations > From VIN 198335

Compressor Clutch Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations > From VIN 198335 > Page 78

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations > From VIN 198335 > Page 79

Compressor Clutch Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - HVAC > Compressor Clutch Relay > Component Information > Locations > From VIN 198335 > Page 80

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component Information > Locations

Control Module HVAC: Locations
Air Conditioning Control Module

Mounted to side of A/C unit.

> Relays and Modules > Relays and Modules - Lighting and Horns > Backup Lamp Relay > Component Information > Locations > From VIN 198335

Backup Lamp Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Lighting and Horns > Backup Lamp Relay > Component Information > Locations > From VIN 198335 > Page 89

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Lighting and Horns > Backup Lamp Relay > Component Information > Locations > From VIN 198335 > Page 90

Backup Lamp Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Lighting and Horns > Backup Lamp Relay > Component Information > Locations > From VIN 198335 > Page 91

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Lighting and Horns > Brake Lamp Relay > Component Information > Locations > From VIN 198335

Brake Lamp Relay: LocationsFrom VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Lighting and Horns > Brake Lamp Relay > Component Information > Locations > From VIN 198335 > Page 96

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location

> Relays and Modules > Relays and Modules - Lighting and Horns > Brake Lamp Relay > Component Information > Locations > From VIN 198335 > Page 97

Brake Lamp Relay: LocationsUp to VIN 198335

Relay Identification and Location

Component Panel Location

> Relays and Modules > Relays and Modules - Lighting and Horns > Brake Lamp Relay > Component Information > Locations > From VIN 198335 > Page 98

XJ-S Convertible (XJ27) L6-4.0L (1996)

Relay Identification And Location