1998 JAGUAR X308 fault code

                              
                                                                                   Valve
 Co
ver 
LH (12.29.43)  
                     Valve
 Cover  RH (12.29.44)  
                     Valve
 Cover  Gasket  LH  (12.29.40)  
                     Valve
 Cover Gasket  RH  (12.29.41)  
                     Valve
 Springs  LH 
                     Valve
 Springs  RH 
                     Variable
 Camshaft  Timing  Oil  Con
trol Unit  LH  (12.65.71)  
                     Variable
 Camshaft  Timing  Oil  Control  Unit  RH  (12.65.70)  
                     Variable
 Camshaft  Timing  Oil  Control  Unit  Housing  LH  (12.65.52)  
                     Variable
 Camshaft  Timing  Oil  Control  Unit  Housing  RH  (12.65.51)  
 
             303‐03A : Engine  Cooling  
                 Descriptio
n and  Operation  
                     Engine Cooling  
                 Diagnosis  and  Testing  
                     Engine Cooling  
                     Related Faults  /  Codes  
                     DTC P0116  ECT  circuit  range  / performance  problem 
                     DTC P0125  Insufficient  coolant  temperature  for  closed  loop  fuel control  
                     DTC P0117  ECT  circuit  low  input  
                     DTC P0118  ECT  circuit  high  input  
                     DTC P1474  Intercooler  coolant  pum
p relay  malfunction  
                     Pinpoint test  A: P0116,  P0125  
                     Pinpoint test  B: P0117  
                     Pinpoint test  C: P0118  
                     Pinpoint test  D: P1474  
                 General Procedures  
                     Cooling System  Draining,  Filling and  Bleeding  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA  V8  –  
            AJ27 
                     Cooling System  Draining,  Filling and  Bleeding  ‐ 4.0L  SC  V8  ‐ AJ26  
                     Cooling Sy
stem  Draining  and  Vacuum  Filling  
                 Removal and  Installation  
 
Removal
 
Engine  ‐ Re m
oval
 (12.41.01)  
Installation  
Engine  ‐ Installation  (12.41.01)  

                    Coolant E x
pansion
 Tank  (26.15.01)  
                    
Coolant Outlet  Pipe  (26.31.08)  
                    
                     Cooling Fan  Motor  (26.25.24)  
                     Cooling Fan  Motor  and  Shroud  (26.25.25)  
                     Cooling Fan  Motors  (26.25.25)  
                     Cooling Fan  Shroud  (26.25.30)  
                     Engine Coolant  Level  Switch  (26.40.11)  
                     Radiator (26.40.01)  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA V8  ‐ AJ27  
                     Radiator (26.40.01)  ‐ 4.0L  SC  V8 ‐ AJ26  
                     Radiator Lower Hose  (26.30.07)  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA  V8  ‐ AJ27  
                     Radiator Lower Hose  (26.30.07)  ‐ 4.0L  SC  V8 ‐ AJ26  
                     Radiator Upper Ho
se (26.30.01)  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA  V8  ‐ AJ27  
                     Radiator Upper Hose  (26.30.01)  ‐ 4.0L  SC  V8 ‐ AJ26  
                     Thermostat  (26.45.07)  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA  V8  ‐ AJ27  
                     Thermostat  (26.45.07)  ‐ 4.0L  SC  V8 ‐ AJ26  
                     Thermostat  Housing  Cover  (26.
45.22)  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA  V8  ‐ AJ27  
                     Thermostat  Housing  Cover  (26.45.22)  ‐ 4.0L  SC  V8 ‐ AJ26  
                     Thermostat  Housing  Cover  Seal  (26.45.20)  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA V8  ‐ AJ27  
                     Thermostat  Housing  Cover  Seal  (26.45.20)  ‐ 4.0L  SC  V8 ‐ AJ26  
                     Water Pump  (26.50.
01) ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA V8  ‐ AJ27  
                     Water Pump  (26.50.01)  ‐ 4.0L  SC  V8 ‐ AJ26  
                     Water Pump  Pulley  (26.50.05)  ‐ 3.2L  NA  V8  ‐ AJ26/4.0L  NA  V8  ‐ AJ27  
                     Water Pump  Pulley  (26.50.05)  ‐ 4.0L  SC  V8 ‐ AJ26  
 
             303‐03B : Supercharger  Cooling 
                 Removal and  Installation  
                     Water Pump  
 
             303‐04:  Fu
el Charging  and Controls  
                 Diagnosis  and  Testing  
                     Fuel Charging  and Controls  
                 Inspection  and Verification  
                     Driver Information  Chart  
                     Default mode Definitions  
                     Diagnostic Trouble  Code  (DTC)  index  
                     Pinpoint Tests  

            303‐07:  En gine  Ignition
 
                 Specification  
                 Diagnosis  and  Testing  
                     Engine Ignition  
                 Diagnosis  and  Testing  
                     Engine Ignition  
                 Inspection  and Verification  
                     Driver Information  Chart  
                     Default mode Definitions  
                     Diagnostic Trouble  Code  (DTC)  index  
                     Pinpoint Tests  
                 Removal and  Installation  
                     Ignition Coil ‐On ‐Plug  LH  (18.20.44)  
                     Ignition Coil ‐On ‐Plug  RH  (18.20.43)  
                     Ignition Module  (18.20.30)  
                     Spark Plugs (18.20.02)  
 
             303‐08:  En
gine  Emission  Control  
                 Specification  
                 Diagnosis  and  Testing  
                     Engine Emission  Control  
                 Inspection  and Verification  
                     Diagnostic Trouble  Code  (DTC)  Index  
                     Pinpoint Tests  
                 Removal and  Installation  
                     Exhaust Gas  Recirculation  (EGR) Valve  (17.45.01)  
                     Exhaust Manifold  to  Exhaust  Gas  Recirculation  (E
GR)  Valve  Tube  (17.45.11)  
 
             303‐12:  Intake  Air  Distribution  and  Filtering  
                 Removal and  Installation  
                     Air Cleaner  (19.10.05)  
                     Air Cleaner  Element  (19.10.08)  
                     Charge Air  Cooler  LH  (18.50.19)  
                     Charge Air  Cooler  RH  (18.50.18)  
                     Charge Air  Cooler  Gasket  LH  (18.50.22)  
                     Charge Air  Cooler  Gasket  RH  (18.50.21)  
                     Supercharger  (18.50.
15) 

                    Superchar
ger
 Outlet  Pipe (18.50.16)  
                     Supercharger  Outlet  Pipe Gasket  (18.50.17)  
                     Throttle Body  Elbow  (19.70.28)  
                     Throttle Body  Elbow  Gasket  (19.70.29)  
 
             303‐13:  Evaporative  Emissions  
                 Diagnosis  and  Testing  
                     Evaporative  Emissions 
                                       
Preliminary
 Inspection
 
                     Diagnostic
 Drive  Cycles  
                     Diagnostic
 Trouble  Code  (DTC)  index/Symptom  Chart  
                     Pinpoint
 Tests  
                 Removal
 and  Installation  
                     Evaporative 
Emission Canister  (17.15.13)  
                     Evaporative 
Emission Canister  Purge  Valve (17.15.30)  
                     Fuel
 Tank  Press
ure Sensor  (19.55.31)  
                     Fuel
 Vapor  Vent  Valve  Housing  (19.55.24)  
                     Fuel
 Vapor  Vent  Valve  Housing  Seal  (19.55.25)  
 
             303
‐14:  Electronic  Engine  Controls  
                 Description
 and
 
                                      Diagnosis
 and  Testing  
                     Electronic
 Engine  Con
trols  
                     Inspection
 and  Verification  
                     Driver
 Information  Chart  
                     Default 
mode Definitions  
                     Diagnostic
 Trouble  Code  (DTC)  Index  
                     Pinpoint
 Tests  
                 Removal
 and  Installation  
                     Catalyst 
Monitor  Sensor LH  (18.30.81)  
                     Catalyst 
Monitor  Sensor RH  (18.30.80)  
                     Heated Oxygen  Sensor  (HO2S)  LH  (18.30.79)  
                    
Heated Oxygen  Sensor  (HO2S)  RH  (18.30.78)  
                    
                    
Camshaft  
Position  
Sen s
or
 
ECM  
Position  
Sensor  
Crankshaft
Removal
Engine  
Coolant Temperature
Sensor 
Operation
Intake  Air  Temperature  (IAT)  Sensor  (18.
30.52)  

irri
tation and dermatitis. In addition, used engine oil contains potentially harmful contaminants which may cause skin
cancer. Washing facilities and adequate means of skin protection should be provided.
Observe these recommendations:
Wear pro t
ective clothing and impe
rvious gloves when necessary.
Do not put oily
rags in pockets. Avoid contaminat
ing clothes, particularly underwear, with oil.
Overal
ls must be cleaned re
gularly; discard oil impregna ted clothing and footwear wh ich cannot be washed or
cleaned.
Fi rst
Aid treatment should be obtained
immediately for open cuts or wounds.
Use barrier
creams, applying before each work period, to en
able easier removal of dirty oil and grease from the skin.
Wa
sh with soap and water to ensure th
at all oil is removed (skin cleaner and a nail brush will help). The use of
preparations containing lanolin will help to replace the natural skin oils which have been removed.
Do
not use petrol, kerosene, gas oil, th
inners or solvents for washing skin.
If
skin disorders develop, obtain medical advice immediately.
Wh
ere prac
ticable, degrease components prior to handling.
W
h
ere there is a risk of fluids coming into contact with th
e eyes, suitable eye protection should be worn - goggles or
face shield. An eye wash facility should be provided.
Ensure that a
dequate ventilation is provided when volatile degreasing agents are being used.
E
n
vironmental Protection
In so
m
e countries it is illegal to pour used oil onto the ground
, down sewers or drains, or into water courses. The burning of
used engine oil in small space heaters or boilers is not reco mmended unless emission control equipment is fitted. Dispose of
used oil through authorized waste disposal contractors, to licensed waste disposal sites or to the waste oil reclamation
trade. If in doubt, contact the Local Authority for advice on disposal facilities.
On-Board Diagnostics (OBD)
Ve
hicles use programmed electronic control systems to prov
ide engine management and emission regulation, automatic
transmission operation and anti -lock braking control. These control systems ha ve an integral On-Board Diagnostics (OBD)
facility for use in conjunction with either Jaguar diagnostic equipment or a scan t ool which is capable of retrieving DTCs,
PIDs and performing active commands.
The OBD information in this manual provid es diagnostic and rectification procedures for emission related electrical and
mechanical systems. The informat ion is intended to facilitate fault diagnosis and the subsequent rectification of vehicles
without recourse to the portab le diagnostic unit (PDU).
OBD related information can be fo und in the following sections:
General Information

Engine M

anagement System
Auto

matic Transmission
Anti-lock Br

aking System
Where appropriate a section comprises the following sub-sections:
Description and Operation
A ge
neral illustration and parts list to help the identi
fication of the particular system or component.
A b
rief description of the system operating characteristics and monitoring procedure
accompanied by a component
illustration.
Addi ti
onal information, where appropriat
e, is provided in the form of component calibrations, characteristics and
cross sectional views.
A localized circui
t diagram is included to provide circuit iden
tification and details of connectors, splices, fuses, wire
gauge and colors. See Circuit Diagrams.
Diagnosis and Testing (dedicated to fault analysis and rectification)
Recommended special tools. Symptom chart; a ch
art contai
ning all relevant Diagnostic Trouble Code s (DTC), their possible causes and an
indication of the appropriate test.
Sp
ecific pinpoint test(s), de
signed so that fault diagnosis can be carr ied out in a logical and efficient manner.

•
NOTE: For convenience, pinpoint test il
lustrations indicating voltage measurements do not always accurately reflect the
conventional method of connecting a multimeter. More explicitly, if the multimeter probes are connected as shown in some
illustrations (positive probe to ground), the voltage reading would be preceded by the negative sign '-', indicating that the
probes have been connected in the reverse manner to the norm al convention. The accuracy of the reading is not affected
and the '-' sign can be ignored when comparing the reading with the results indicated in the text of the pinpoint test.
Removal and Installation
Re
moval procedure(s), formatted
in the recommended sequence
Il
lustrated guide to the use of special tools
Il

lustrations to support the relevant text
Installation

procedure as above and including special re
commendations for processes, lubricants and tightening
torques.
Cir
cuit Diagrams
To
understand the relationship between the vehicle electric
al system and the system circuit diagrams, refer to the
appropriate Electrical Guide.
Fault Identificatio
n (DTC)
The diagnostic trouble codes (DTCs) are
li
sted in Section 303-00 under Diagno
stic Trouble Codes and include, where
applicable, the corresponding manual section reference.

Safety Standard
Canister PurgeCANPControls pu
rging of the EVAP canister
Carbon dioxideCO2Colorless gas with

a density of a
pproximately 1.5 ti mes that of air
Carbon mon
oxide
COPoi
sonous gas produced as the re
sult of incomplete combustion
Case G
round
CSE GNDControl modu
le casing ground
Catal

ytic converter
In
-line exhaust system device used to reduce the level of engine exhaust
emissions
Ce
lsius
CSI ter
m for the Centigrade scale, with
freezing point at zero and boiling point
at 100°
Central
Processor Unit
CPUTh
e section of a computer that contai
ns the arithmetic, logic and control
circuits. It performs arithm etic operations, controls instruction processing, and
provides timing signals and other housekeeping operations
Cl
osed Loop
CL
Cl

osed Loop System
CLSControl
system with one
or more feedback loops
Col
umn/Mirror Control
Module
C/MC
M
Control ModuleCMA

self-contained group of electrical/electronic components, designed as a
single replaceable un it, and controlling one or more processes
Controll
er Area Network
CANA
communication system which allows control modules to be linked together
in a network.
Crankshaft Posi
tion
Sensor
CKPSGenerates crankshaft positi on informa
tion in conjunct
ion with the CKPTR (also
generates speed information in certain applications)
Crankshaft Posi
tion
Timing Ring
CKPT
R
Toothe
d ring which
triggers the CKPS
Crankcase Ventila
tion
System
CVSys
tem which scavenges camshaft cover and crankcase emissions and feeds
them into the inlet manifold
Cubic ce nt
imeter
cm
3
Curb weightWe

ight of vehicle with fuel, lubrican
ts and coolant, but excluding driver,
passengers or payload
D
Dat
a Link Connector
DLCConne
ctor providing access and/or control of the vehicle information,
operating conditions, and diagnostic information
De
gree
deg, °Angle or tempe
rature
D

epartment of
Transportation (US)
DO
T
D

epartment of Transport
(UK)
DTp
De
utsche In
stitut für
Normung
DINGerman stand
ards regulation body
Di

agnostic Module
DMSuppl
emental Restraint System (non-c
ontrolling) module for diagnostics
overview
Di
agnostic Test Mode
DTMA le
vel of capability in an OBD system.
May include different functional states
to observe signals, a base level to re ad DTCs, a monitor level which includes
information on signal levels, bi-directional control with on /off board aids, and
the ability to interface with remote diagnosis
Diagnostic Trouble CodeDTCAn al
pha/numeric identifier for a fault
condition identified by the On-Board
Diagnostic (OBD) system
D
ial test indicator
DTIA mechan
ical measuring
instrument, with a rotary indicating pointer
connected to a linear operating probe
D
ifferential pressure
Pressure di
fference betwee
n two regions e.g. between intake manifold and
atmospheric pressures
D
ifferential Pressure
Feedback EGR
DP
FE
An
EGR system that monito
rs differential EGR pressure across a remote orifice
to control EGR flow
D
irect current
dcCurrent which f
lows in on
e direction only, though it may have appreciable
pulsations in its magnitude
Du
al linear switch
DLSJ
-gate switch connected to the TCM on SC vehicles
E
EGR

Temperature EGRT
Sensor
EGRTSens
ing EGR function based on temperature change
EGR Vacu

um Regulator
EVRControls EGR
flow by changi
ng vacuum to the EGR valve
EGR Valve
Position
EVPAn EGR
system that direct
ly monitors EGR valve position to control EGR flow
Electrically E
rasable
Programmable Read-Only
Memory
EEP
ROM

The brake
control modulator comprises:
a A

BS/TCCM
a h

ydraulic control unit,
an electrically driven hydrau

lic pump,
two low pressure accumulato

rs and damping chambers.
ABS/TCCM


The AB
S/TCCM is integrated with the hydrau
lic control unit. It houses the solenoids that operate the hydraulic control unit's
input and return valves; the valve stems locate into the ABS/TCCM's solenoids. There is no electrical connection between
the ABS/TCCM and the hydraulic control unit.
The ABS/TCCM constantly monitors the brake electronic system by passing self-checking electrical pulses around the circuit.
The self check procedures carried-out by the ABS/TCCM are listed below:
1. 1. Monitoring of the operating voltage: the control mo dule will shut-down should the voltages not be
(approximately) in the range of 9 to 19V.
2. 2. The pump is monitored for volt age supply and voltage feedback.
3. 3. Monitoring for disturbance, where a failure may be caus ed by external radio frequency interference, internal
leakage current, defective valve transistor or a faulty valve.
4. 4. Internal controller failure, de tected by a RAM and ROM test.
5. 5. The controller area network (CAN) micr o-controller checks for correct operation of the communication network
and performs a RAM self-check.
CAUTION: Disconnection of ABS/TCCM connectors may introduce other fault codes. Following rectification and
reconnection, ensure that no induced codes exist.
5.
Signals processed by the ABS/TCCM are also sent to the CAN for vehicle use, such as the instrument cluster speed display,
cruise control and stability/traction control.
Hydraulic Control Unit

Control of
the fluid pressure to
the front and rear brakes is by means of the valves contained in the hydraulic control unit.
The valves are operated by solenoids housed in the ABS/TCCM.
Hydraulic Pump
The
hydraulic pump is integrated
with the hydraulic control unit.


Bra
ke Control Modulator