Jaguar XJ (X350). Manual — part 893

G258127p23.

Engine surges

Fuel pump

Fuel lines

MAF sensor

Harness

Throttle sensors

Throttle motor

Ignition system

Check fuel pressure. For fuel

line information,

Fuel Tank and Lines - 4.2L NA

V8 - AJV8/4.2L SC V8 -

AJV8/3.0L NA V6 - AJ27/3.5L

NA V8 - AJV8, VIN Range:

G00442->G45703 For MAF

sensor, throttle sensor, and

throttle motor relay tests,

Electronic Engine Controls - VIN

Range: G00442->G45703 For

ignition system,

Engine Ignition - VIN Range:

G00442->G45703

Engine

detonates/knocks

KS/circuit malfunction

Fuel pump

Fuel lines

Fuel pressure sensor

MAF sensor

HO2 sensors

Air leakage

Sticking VCT hub

BARO sensor malfunction

For KS circuit tests, GO to

Pinpoint Test G258127p15.

and GO to Pinpoint Test

G258127p16.

Check fuel pressure. For fuel

line information,

Fuel Tank and Lines - 4.2L NA

V8 - AJV8/4.2L SC V8 -

AJV8/3.0L NA V6 - AJ27/3.5L

NA V8 - AJV8, VIN Range:

G00442->G45703 For fuel

pressure sensor,

Fuel Charging and Controls -

VIN Range: G00442->G45703

Fuel Charging and Controls -

VIN Range: G45704->G99999

For MAF sensor tests, GO to

Pinpoint Test G258127p1.

Check for DTCs relating to HO2

sensors. Refer to the DTC index

for pinpoint tests for DTC set.

For intake system,

Intake Air Distribution and

Filtering - VIN Range: G00442-

>G45703 Check DTCs for VCT

range/performance fault. For

VCT information,

Engine For BARO sensor,

contact dealer technical

support for advice on possible

ECM failure

No throttle response

APP sensor malfunction

Throttle sensors

Throttle motor

For APP sensor tests, GO to

Pinpoint Test G258127p22.

and GO to Pinpoint Test

G258127p23.

For throttle position sensor

tests, GO to Pinpoint Test

G258127p4.

For throttle motor tests, GO to

Pinpoint Test G258127p24.

Speed control inhibited

or disabled

Default mode enabled

Speed control switch

Throttle sensors

Stop light switch

Check message center for

default message. For speed

control switches,

Speed Control - VIN Range:

G00442->G45703 For throttle

position sensor tests, GO to

Pinpoint Test G258127p4.

Check electrical guides for stop

light switch information.

Poor throttle response

APP sensor malfunction

Throttle sensors

Coolant temperature

sensor

MAF sensor

Transmission malfunction

Traction control event

Air leakage

Breather system

disconnected/restricte
d

For APP sensor tests, GO to

Pinpoint Test G258127p22.

and GO to Pinpoint Test

G258127p23.

For throttle position sensor

tests, GO to Pinpoint Test

G258127p4.

For ECT sensor tests, GO to

Pinpoint Test G258127p3.

For MAF sensor tests, GO to

Pinpoint Test G258127p1.

For transmission information,

For intake system,

Intake Air Distribution and

Filtering - VIN Range: G00442-

>G45703 For breather system

information,

Engine Emission Control - VIN

Range: G00442->G45703

www.

Engine defaults,

warning light and

messages. Refer to the

driver information

table

Park/Neutral switch

Throttle sensors

MAF sensor

Coolant temperature

sensor

Harness

For Park/Neutral tests,

External Controls For throttle

position sensor tests, GO to

Pinpoint Test G258127p4.

For MAF sensor tests, GO to

Pinpoint Test G258127p1.

For ECT sensor tests, GO to

Pinpoint Test G258127p3.

Driver Information Chart

Warning

light

Message

Default Mode

DTC

Red

Engine systems fault

Engine shut-down (all

cylinders fuel cut)

P1224

Red

Engine systems fault

Limp-Home

P1229

Red

Engine systems fault

Limp-Home

P0121, P0122, P0123, P0222,

P0223

Red

Engine systems fault

Limp-Home

P1251, P1631

Red

Engine systems fault

Limp-Home

P1611

Red

Engine systems fault

Limp-Home

P1633

Red

Engine systems fault

High idle

P1344, P1122, P1123, P1215,

P1216

Red

Restricted Performance

Limp-Home unavailable

P1254

Red

Restricted Performance

Limp-Home unavailable

P1250

Red

Restricted Performance

Safety redundancy

P1657, P1658

Red

Restricted Performance

Safety redundancy

P1634

Amber

Restricted Performance

Engine speed limited

P0116, P0117, P0118, P0125

Amber

Restricted Performance

Engine speed limited

P0101, P0102, P0103, P0104

Amber

Restricted Performance

Engine speed limited

P0300, P0301, P0302, P0303,

P0304, P0305, P0306, P0307,

P0308, P1313, P1314

Amber

Restricted Performance

Engine speed limited

P0327, P0328, P0332, P0333,

P1648

Amber

Restricted Performance

Engine speed limited

P0351, P0352, P0353, P0354,

P0355, P0356, P0357, P0358,

P1367, P1368

Amber

Restricted Performance

Engine speed limited

P0171, P0172, P0174, P0175

Amber

Restricted Performance

Engine speed limited

P0201, P0202, P0203, P0204,

P0205, P0206, P0207, P0208

Amber

Restricted Performance

Engine speed limited

P0335, P0336

Amber

Restricted Performance

Engine speed limited,

Reverse throttle progression

enabled

P1642

Amber

Restricted Performance

Engine speed limited,

Reverse throttle progression

enabled

P1643

Amber

Restricted Performance

Engine speed limited,

Reverse throttle progression

enabled

P0096, P0097, P0098

Amber

Restricted Performance

Engine speed limited,

Reverse throttle progression

enabled

P1474

Amber

Restricted Performance

Engine speed limited

P1234, P1236, P1338

Amber

None

None

P0506, P0507

Amber

None

None

P1656

Amber

Gearbox

fault/Restricted

performance

Gearbox default to set gear

P0725

Amber

Gearbox

fault/Restricted

Gearbox default to set gear

P1796

www.