catalyst JAGUAR X308 1998 2.G Owner's Manual

TP se
nsor to ECM sensing circuits
('1' or '2') short circuit to high
voltage
TP sensor
failure
Throttl

e motor disconnected
Th

rottle motor to ECM drive circuits

short circuit or open circuit
Throttl
e motor failure
Throttl

e assembly failure
Test
K. . F
or throttle motor circuit
tests,GO to Pinpoint Test T.
. For
throttle body i
nformation,
REFER to Section 303
-04
Fuel
Charging and Con

trols
.
P1252Mec

hanical gu
ard position
malfunction (cruise (speed)
control)
VSV 1, 2, 3 v
acuum and/or
electrical circuit fault(s) open
circuit, short circuit or high
resistance
Mechanica
l guard sensor to ECM
sense circuit
Mechanica
l guard sensor failure
Mechanica

l guard actuator
siezed/spring broken
Throttl
e vacuum actuator fault
Se
e pinpoint tests for components
listed.
P1253Mec
hanical gu
ard position
malfunction (engine off)
VSV 1, 2, 3 v
acuum and/or
electrical circuit fault(s)
Mechanica
l guard sensor to ECM
sense circuit
Mechanica
l guard sensor failure
Mechanica

l guard actuator
siezed/spring broken
Throttl
e vacuum actuator fault
Se
e pinpoint tests for components
listed.
P1260Se
curity input malfunction
K
TM to ECM circuit short circuit,
high resistance or open circuit
KTM failu
re
F
or KTM circuit tests,GO to Pinpoint
Test Y.
.
P1313M
isfire rate catalyst damage,
right-hand. NOTE: This DTC will
flag only when accompanied by a
random or individual cylinder
misfire DTC; P0300, P0301 to
P0304
R
efer to possible causes for P0300-P0308
R
efer to actions for P0300-P0308.
P1314Mi

sfire rate catalyst damage, left-
Hand: NOTE. This DTC will flag
only when accompanied by a
random or individual cylinder
misfire DTC; P0300 to P0308
P1316M
isfire excess emission. NOTE:
This DTC will flag only when
accompanied by an individual
cylinder misfire DTC; P0300 to
P0308
P1336Cranksh
aft position
(CKP) sensor /
camshaft position (CMP) sensor
synchronization malfunction
CKP s
ensor/CMP sensor
disconnected
CKP sensor/CM
P sensor gap
incorrect/foreign matter on sensor
face
CKP s
ensor/CMP sensor sensing
circuit open circuit, short circuit to
ground, short circuit to high
voltage
CKP s
ensor/CMP sensor failure
F
or CKP sensor circ
uit tests,GO to
Pinpoint Test N.
. For CM
P sensor
circuit tests,GO to Pinpoint Test O.
.
P1367Ignit
ion monitor (ignition module
1)
Ignition modu
le
1 disconnected
Ignition modul
e 1 to ECM circuits
open circuit, short circuit to ground
or short circuit to B+ voltage
Ignition modul
e 1 ground circuit
fault
Ignition coil
relay failure
Ignition coil

open/short circuit
Ignition modul

e 1 failure
F
or ignition circuit tests,
REFER to Section 303
-07
Engine
Ignition.
P1368Ignit

ion monitor (ignition module
2)
Ignition modu
le
2 disconnected
Ignition modul
e 2 to ECM circuits
open circuit, short circuit to ground
F
or ignition circuit tests,
REFER to Section 303
-07
Engine
Ignition.

CLEAR th
e DTC. TEST the syst
em for normal operation.
PINPOINT TES
T G : DTC P0137, P0138; RIGH
T-HAND CATALYST MONITOR SENSOR LOW/HIGH
VOLTAGE, NO ACTIVITY
TE S
T
CONDITIONS
D E
TAILS/RESULTS/ACTIONS
G1
: C
HECK THE CATALYST MONITOR SENSOR SENSE CIRCUIT FOR HIGH RESISTANCE
Di
sc
onnect the battery negative terminal.
1
Di
sc
onnect the catalyst monitor sensor electrical connector, EM22.
2
Disc
onne
ct the ECM electrical connector, EM12.
3
Meas
ure t
he resistance between EM22, pin 02 (U) and EM12, pin 17 (U).
4
Is th
e res
istance greater than 5 ohms?
Yes REPAIR the high resistance circui t. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.
No GO to G2
.
G2: CHECK
THE CATALYST MONITOR SENSOR SE
NSE CIRCUIT FOR SHORT TO HIGH VOLTAGE
Re
connect the battery negative terminal.
1
Turn the ignition swi
t
ch to the ON
position.
2
Measure t
he voltage between EM12, pin 17 (U) and GROUND.
3
Is th
e volt
age greater than 3 volts?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No
GO to G3
.
G3: CHECK
THE CATALYST MONITOR SENSOR
SENSE CIRCUIT FOR SHORT TO GROUND
Turn the ignition swit
ch to the OFF
position.
1
Measure t
he resistance between EM12, pin 17 (U) and GROUND.
2
Is t

he resistance less than 10,000 ohms?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No GO to G4
.
G4: CHECK
THE CATALYST MONITOR SENSOR
GROUND CIRCUIT FOR OPEN CIRCUIT
Reconn
ect the ECM electrical connector, EM12.
1
Meas
ure t
he resistance between EM22, pin 01 (BRD) and GROUND.
2
Is th
e res
istance greater than 5 ohms?
Yes REPAIR the circuit (this is a braide d lead which would require different repair techniques to standard
wiring). For additional information, refer to the wiring diagrams. CL EAR the DTC. TEST the system for
normal operation.
No INSTALL a new catalyst monitor sensor.
REFER to Catalyst Monitor Sensor RH
in this
section.
CLEAR the DTC. TEST the syst em for normal operation.
PINPOINT TES
T H : DTC P0151, P0152, P0153;
LEFT-HAND H02S LOW/HIGH VOLTAGE, SLOW
RESPONSE
•
NOTE: Before commencing this test, check the sensor connect
ions and harness, check for exhaust leaks, engine misfire,
etc. See 'visual inspection ch art' and 'possible causes'.
TES
T
CONDITIONS
D E
TAILS/RESULTS/ACTIONS
H1:
C
HECK THE H02S SENSE CIRCUIT FOR HIGH RESISTANCE
Di
sc
onnect the battery negative terminal.
1
D
is
connect the H02S electrical connector, EM23.
2
Disc
onne
ct the ECM electrical connector, EM12.
3
Meas
ure t
he resistance between EM23, pin 03 (G) and EM12, pin 14 (G).
4
Is th
e res
istance greater than 5 ohms?

1
Turn the ignition swit
ch to the
ON position.
2
Meas ure t
he voltage between EM23, pin 01 (PS) and GROUND.
3
Is th
e volt
age greater than 3 volts?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No GO to I4
.
I4
: CHECK H02S HEATER CONTROL CIRCUIT FROM ECM FOR SHORT TO GROUND
Turn the ignition swit

ch to the
OFF position.
1
Measure t
he resistance between EM23, pin 01 (PS) and GROUND.
2
Is t

he resistance less than 10,000 ohms?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No INSTALL a new H02S.
REFER to Heated Oxygen Sensor (HO2S) LH
in this
section.
CLEAR the DTC. TEST the system for normal operation.
P INPOINT TES
T J : DTC P0157, P0158; LEFT-H
AND CATALYST MONITOR SENSOR LOW/HIGH
VOLTAGE, NO ACTIVITY
TE S
T
CONDITIONS
D E
TAILS/RESULTS/ACTIONS
J
1
: CHECK THE CATALYST MONITOR SENSOR
SENSE CIRCUIT FOR HIGH RESISTANCE
Disc
onnect the battery negative terminal.
1
Di
sc
onnect the catalyst monitor sensor electrical connector, EM24.
2
Disc
onne
ct the ECM electrical connector, EM12.
3
Meas
ure t
he resistance between EM24, pin 02 (N) and EM12, pin 16 (N).
4
Is th
e res
istance greater than 5 ohms?
Yes REPAIR the high resistance circui t. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.
No GO to J2
.
J2
: CHECK THE CATALYST MONITOR SENSOR SENSE CIRCUIT FOR SHORT TO HIGH VOLTAGE
R
e
connect the battery negative terminal.
1
Turn the ignition swi
t
ch to the ON
position.
2
Measure t
he voltage between EM12, pin 16 (N) and GROUND.
3
Is th
e volt
age greater than 3 volts?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No GO to J3
.
J3
: CHECK THE CATALYST MONITOR SENSOR
SENSE CIRCUIT FOR SHORT TO GROUND
Turn the ignition swit
ch to the OFF
position.
1
Measure t
he resistance between EM12, pin 16 (N) and GROUND.
2
Is t

he resistance less than 10,000 ohms?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No GO to J4
.
J4
: CHECK THE CATALYST MONITOR SENSOR
GROUND CIRCUIT FOR OPEN CIRCUIT
Reconn
ect the ECM electrical connector, EM12.
1
Meas
ure t
he resistance between EM24, pin 01 (BRD) and GROUND.
2
Is th
e res
istance greater than 5 ohms?
Yes REPAIR the circuit (this is a braide d lead which would require different repair techniques to standard
wiring). For additional information, refer to the wiring diagrams. CL EAR the DTC. TEST the system for

normal operation
.
No INSTALL a new catalyst monitor sensor.
REFER to Catalyst Monitor Sensor LH

in this section.
CLEAR the DTC. TEST the syst em for normal operation.
P
INPOINT TEST K : DTC P0222, P0223; THRO
TTLE POSITION (TP) SENSOR CIRCUIT 2 LOW
VOLTAGE
TE
ST
CONDITIONS
D
ETAILS/RESULTS/ACTIONS
K

1: CHECK TP SENSOR 2 SENSE CIRCUIT FOR HIGH RESISTANCE
Di

sconnect the battery negative terminal.
1
Disc

onnect the TP sensor electrical connector, PI06.
2
D

isconnect the ECM electrical connector, EM11.
3
Me

asure the resistance between PI06, pin 02 (G) and EM11, pin 10 (G).
4
Is th

e resistance greater than 5 ohms?
Yes REPAIR the high resistance circui t. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.
No GO to K2
.
K
2: CHECK TP SENSOR 2 SENSE CIRC
UIT FOR SHORT TO HIGH VOLTAGE
R
econnect the battery negative terminal.
1
Turn the ignition swi

tch to the ON
position.
2
M
easure the voltage between PI06, pin 02 (G) and GROUND.
3
Is th

e voltage greater than 5 volts?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No INSTALL a new TP sensor.
REFER to Throttle Position (TP) Sensor

in this section.
CLEAR the DTC. TEST the system for normal operation.
PI
NPOINT TEST L : DTC P0327, P0328; RIGHT-HA
ND KNOCK SENSOR (KS) CIRCUIT OUT OF RANGE
(LOW VOLTAGE)
•
NOTE: Before commencing this
test, make sure that the sensor is making a good electrical contact with the cylinder
block. See 'possible causes'.
TE
ST
CONDITIONS
D
ETAILS/RESULTS/ACTIONS
L

1: CHECK THE KS SENSE CIRCUIT FOR HIGH RESISTANCE
Di

sconnect the battery negative terminal.
1
Di

sconnect the KS electrical connector, PI26.
2
D

isconnect the ECM electrical connector, EM13.
3
Me

asure the resistance between PI26, pin 01 (S) and EM13, pin 18 (S).
4
Is th

e resistance greater than 5 ohms?
Yes REPAIR the high resistance circui t. For additional information, refer to the wiring diagrams. CLEAR
the DTC. TEST the system for normal operation.
No GO to L2
.
L
2: CHECK THE KS SENSE CIRCUIT FOR SHORT TO HIGH VOLTAGE
Turn the ignition swi

tch to the ON
position.
1
R
econnect the battery negative terminal.
2
Meas

ure the voltage between PI26, pin 01 (S) and GROUND.
3
Is th

e voltage greater than 3 volts?
Yes REPAIR the short circuit. For addi tional information, refer to the wiring diagrams. CLEAR the DTC.
TEST the system for normal operation.
No GO to L3
.

E
lectronic Engine Controls -
Catalyst Monitor Sensor LH
Re
moval and Installation
General Equipment
Remov
al
Installation


Snap
-on tool S6176
1. WARNING: ENSURE THAT THE EXHAUST AND CATALYST
ARE COLD BEFORE COMMENCING WORK.
Disconnect the battery ground lead.

2. CAUTI
ON: Make sure the wiring harness is not twisted or
damaged on removal. Failure to fo llow this instruction may result
in damage to the vehicle.
From inside the engine compartment, release the relevant
sensor(s) multiplug from its mounting bracket and disconnect
the plug.

3. NOTE
: Right-hand shown, left-hand similar.
Using the Snap-on tool S6176, remove the sensor from
underneath the vehicle.
1. Fitting is the reverse of the removal procedure, noting that a
new sealing washer should be used.

2. CAUTI
ON: Make sure the wiring harness is not twisted or
damaged on installation. Failure to follow this instruction may
result in damage to the vehicle.
• NOTE: Right-hand shown, left-hand similar.
Tighten the sensor to specification.
3. Make good th
e exhaust seals.

El
ectronic Engine Controls -
Catalyst Monitor Sensor RH
Remo
val and Installation
General Equipment
Remov a
l
Installation


Snap -
on tool S6176
1. WARNING: ENSURE THAT THE EXHAUST AND CATALYST
ARE COLD BEFORE COMMENCING WORK.
Disconnect the battery ground lead.

2. CAUTIO
N: Make sure the wiring harness is not twisted or
damaged on removal. Failure to fo llow this instruction may result
in damage to the vehicle.
• NOTE: Left-hand shown, right-hand similar.
From inside the engine compartment, release the relevant
sensor(s) multiplug from its mounting bracket and disconnect
the plug.

3. Us
ing the Snap-on tool S6176, remove the sensor from
underneath the vehicle.
1. Fitting is the reverse of the removal procedure, noting that a
new sealing washer should be used.

2. CAUTI
O
N: Make sure the wiring harness is not twisted or
damaged on installation. Failure to follow this instruction may
result in damage to the vehicle.
Tighten the sensor to specification.
3. Make good th e exh
aust seals.

Diagnostic Monitor Comp
letion
stat
ionery in
D.
WARNING: This should not be attempted without the vehicle
being in a safe area and suitably chocked. Failure to follow this
instruction may result in personal injury.
Without using the Jaguar approved diagnostic system or a scan
tool with system readiness capability, it will not be possible to
confirm when the adaptations are complete, unless P1111,
(system checks complete since last memory clear) is flagged. If
such equipment is not available, ALL the diagnostic monitors
will have to run to enable DTC P1111 to be flagged. In some US
states, this code is a requirem ent for annual emissions tests.
1. The dri v
e cycles detailed here w
ill enable the monitors to run,
but only after fuelling adaptations are complete.
Entry C
onditions
Di
agno
stic
Engine

S p
eed
Ve
h
icle
Speed
Mass Air Flow
(gra ms/sec
ond)
Ti
m
e to
Completion
Catalyst Monitor1 100
to

1600 rpm
50 to
72

kph (31 to 45
mph)
5 to
30 g/s
23
se
conds
HO2S6
00 t
o
2500 rpm
29 to

113 kph
(18 to 70
mph)
4 to
16 g/s
F
u
el cut for
more than 10 seconds, but less than 30 seconds *
Catalyst Monitor SensorN/ AN/A10
to 90 g/s
14
0
seconds
F
u
el System
N/
AN/AMore than 6 g/s33 se
conds
AACVN/
A61 to

121 kph
(38 to 75
mph)
4 to
16 g/s
F
u
el cut for 2
seconds *
P /
N switch
1
800
to

2200 rpm
80 to

101 kph
(50 to 63
mph)
N/ A31 se
conds
Evaporative

em is
sions
N/
A48 to
89

kph (30 to 55
mph)
and idle
R e
fer to drive
cycles for leak
tests in this section
Re
fer to drive
cycles for leak
tests in this section
2. During the drive cycle, drive gent ly, avoiding hard acceleration,
braking or cornering and rough roads.
1. Drive at 84 to 97 kph (52 to 60 mph) for 40 seconds.
2. Accelerate to 113 kph (70 mph).
3. Close the throttle, (ideally at the start of a descent)
continue with closed throttle for 10 seconds. (* Fuel
cut)
4. Drive at 56 to 64 kph (35 to 40 mph), holding the throttle as steady as possib le, on a flat level road for
30 seconds minimum.

Electron
ic Engine Controls -
Heated Oxygen Sensor (HO2S) LH
Rem
oval and Installation
General Equipment
Remov
al
Installation


Snap
-on tool S6176
1. WARNING: ENSURE THAT TH E EXHAUST AND CATALYST
ARE COLD BEFORE COMMENCING WORK
Disconnect the battery ground lead.

2.

CAUTION: Make sure the wiring harness is not twisted or
damaged on removal. Failure to follow this instruction may result in
damage to the vehicle.
From inside the engine compartm ent, release the relevant sensor
(s) multiplug from its mounting bracket and disconnect the plug.
3.

To gain access to the sensor(s) the front muffler assembly must
be displaced for clearance; refer to 30.10.18.

4.

CAUTION: Make sure the wiring harness is not twisted or
damaged on removal. Failure to follow this instruction may result in
damage to the vehicle.
• NOTE: Right-hand shown, left-hand similar.
Using the Snap-on tool S6176, remove the sensor.
1.

Fitting is the reverse of the remo val procedure, noting that a new
sealing washer should be used.

2.

CAUTION: Make sure the wiring harness is not twisted or
damaged on installation. Failure to follow this instruction may result
in damage to the vehicle.
• NOTE: Right-hand shown, left-hand similar.
Tighten the sensor to specification.
3.

Make good the exhaust seals.

Electronic
Engine Controls -
Heated Oxygen Sensor (HO2S) RH
Remo
val and Installation
General Equipment
Remov a
l
Installation


Snap -on to
ol S6176
1. WARNING: ENSURE THAT TH E EXHAUST AND CATALYST
ARE COLD BEFORE COMMENCING WORK
Disconnect the battery ground lead.

2. CAU
TION: Make sure the wiring harness is not twisted or
damaged on removal. Failure to follow this instruction may result in
damage to the vehicle.
• NOTE: Left-hand shown, right-hand similar.
From inside the engine compartm ent, release the relevant sensor
(s) multiplug from its mounting bracket and disconnect the plug.
3. To
gain access to the sensor(s)
the front muffler assembly must
be displaced for clearance; refer to 30.10.18.

4. CAU
TION: Make sure the wiring harness is not twisted or
damaged on removal. Failure to follow this instruction may result in
damage to the vehicle.
Using the Snap-on tool S6176, remove the sensor.
1. Fittin
g is the reverse of the remo
val procedure, noting that a new
sealing washer should be used.

2. CAU
TION: Make sure the wiring harness is not twisted or
damaged on installation. Failure to follow this instruction may result
in damage to the vehicle.
Tighten the sensor to specification.
3. M
ake good the exhaust seals.

6. Fit the mounting bracket for th e front muffler. Tighten the two
bolts to the specified torque figure.

7. Secure the transmission to the engine.
Loosely assemble - Cooler pipe clip bolt.
Loosely assemble - Ground lead bolt.
Loosely assemble - Starter cable clips, two bolts.
Loosely assemble - Catalyst bracket bolts, two each side.
Loosely assemble - Rema ining eight bolts.
Refer to the illustration - tighten in sequence 1,2,3,4 then
in any order.

8. Secure the torque converter to the engine.
1. Fit, but do not tighten, the three bolts which secure the torque converter to the drive plate.
Prevent crankshaft rotation and tighten ALL converter
bolts to the specified torque figure.
2. Fit the blanking plug to the cylinder block access aperture.
9. Secure the oil cooler pipes.
Fit new Dowty washers to each union. Connect the upper
and lower cooler pipes.
Tighten to the specified torque figure.