Jaguar XJ (X350). Manual — part 851

P008300

Variable camshaft timing

(VCT) control circuit high

(left hand bank)

VCT solenoid valve

disconnected

VCT solenoid valve to ECM

PWM drive circuit: short
circuit to power

VCT solenoid failure

For left hand bank VCT

solenoid circuit tests, GO

to Pinpoint Test

G531330p30.

P008700

Fuel rail/system pressure -

too low

Fuel rail pressure (FRP) sensor

disconnected

FRP sensor to ECM sensing

circuit: high resistance or
short circuit to ground

FRP sensor supply circuit:

high resistance

FRP sensor failure

Fuel pump failure

Fuel line leak

Restricted fuel line

For FRP sensor circuit

tests, GO to Pinpoint Test

G531330p21.

Check the fuel pressure,

check the fuel lines,

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: G45704-

>G99999

P008800

Fuel rail/system pressure -

too high

FRP sensor to ECM wiring

(supply/sense): short
circuit to each other

FRP sensor to ECM sense

circuit: short circuit to
power

FRP sensor ground circuit:

high resistance

FRP sensor failure

Restricted fuel line

Fuel pump short circuit to

battery

For FRP sensor tests, GO

to Pinpoint Test

G531330p21.

For fuel line tests,

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: G45704-

>G99999 Check the fuel

pressure, check the fuel

lines,

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: G45704-

>G99999

P010100

Mass or volume air flow A

circuit range/performance

Blocked air cleaner

For intake system

information,

Intake Air Distribution and

Air intake leak

Engine breather leak

Mass air flow (MAF) sensor to

ECM sensing circuit: high
resistance, intermittent
short circuit to ground

MAF sensor supply circuit:

high resistance

Throttle adaption fault (check

throttle position voltage
at Ignition ON)

Filtering - VIN Range:

G45704->G99999 Check

the engine breather

system,

Engine Emission Control -

VIN Range: G45704-

>G99999 For MAF sensor

circuit tests, GO to

Pinpoint Test G531330p1.

P010200

Mass or volume air flow A

circuit low input

MAF sensor supply circuit:

high resistance, short
circuit to ground

MAF sensor failure

For MAF sensor circuit

tests, GO to Pinpoint Test

G531330p1.

P010300

Mass or volume air flow A

circuit high input

MAF sensor to ECM sensing

circuit: short circuit to
power

MAF sensor to ECM sensor

ground circuit: high
resistance

MAF sensor failure

For MAF sensor circuit

tests, GO to Pinpoint Test

G531330p1.

P010600

Manifold absolute pressure

(MAP)/BARO sensor

range/performance

Intake manifold air leak (loose

or missing component)

MAP sensor to ECM circuit(s)

fault

Throttle adaption fault (check

throttle position voltage
at Ignition ON)

MAP sensor failure

For intake system

information,

Intake Air Distribution and

Filtering - VIN Range:

G45704->G99999 For

MAP sensor circuit tests,

GO to Pinpoint Test

G531330p33.

P011123

Intake air temperature (IAT)

sensor circuit

range/performance - signal

stuck low

IAT sensor to ECM wiring:

high resistance

IAT sensor failure

For IAT sensor circuit

tests, GO to Pinpoint Test

G531330p2.

P011124

IAT sensor circuit

range/performance - signal

stuck high

IAT sensor to ECM wiring:

high resistance

IAT sensor failure

For IAT sensor circuit

tests, GO to Pinpoint Test

G531330p2.

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P011129

IAT sensor circuit

range/performance - signal

invalid

IAT sensor to ECM wiring:

high resistance

IAT sensor failure

For IAT sensor circuit

tests, GO to Pinpoint Test

G531330p2.

P011200 IAT sensor circuit low input

IAT sensor disconnected

IAT sensor to ECM wiring:

high resistance

IAT sensor failure

For IAT sensor circuit

tests, GO to Pinpoint Test

G531330p2.

P011300 IAT sensor circuit high input

IAT sensor to ECM wiring:

short circuit to ground

IAT sensor to ECM sensing

circuit: short circuit to
power

IAT sensor failure

For IAT sensor circuit

tests, GO to Pinpoint Test

G531330p2.

P011623

Engine coolant temperature

(ECT) sensor circuit

range/performance - signal

stuck low

Low coolant level

ECT sensor to ECM sensing

circuit: intermittent high
resistance

Engine thermostat failure

ECT sensor failure

For ECT sensor circuit

tests, GO to Pinpoint Test

G531330p3.

P011624

ECT sensor circuit

range/performance - signal

stuck high

Low coolant level

ECT sensor to ECM sensing

circuit: intermittent high
resistance

Engine coolant thermostat

failure

ECT sensor failure

For ECT sensor circuit

tests, GO to Pinpoint Test

G531330p3.

P011629

ECT sensor circuit

range/performance - signal

invalid

Low coolant level

ECT sensor to ECM sensing

circuit: intermittent high
resistance

Engine coolant thermostat

failure

ECT sensor failure

For ECT sensor circuit

tests, GO to Pinpoint Test

G531330p3.

P011700 ECT sensor circuit low input

ECT sensor disconnected

ECT sensor to ECM sensing

circuit: high resistance,
short circuit to power

ECT sensor failure

For ECT sensor circuit

tests, GO to Pinpoint Test

G531330p3.

P011800

ECT sensor 1 circuit high

input

Engine overheat

condition/cooling fan
failure

ECT sensor to ECM wiring:

short circuit to ground

ECT sensor failure

For cooling fan circuit

tests, GO to Pinpoint Test

G531330p19.

For ECT sensor circuit

tests, GO to Pinpoint Test

G531330p3.

P012100

Throttle position (TP) sensor

circuit range/performance,

circuit 1 and 2

TP sensor to ECM wiring: high

resistance

TP sensor to ECM sensing

circuits: (TP 1 or TP 2)
short circuit to power

TP sensor failure

For TP sensor circuit 1

tests, GO to Pinpoint Test

G531330p4.

For TP sensor circuit 2

tests, GO to Pinpoint Test

G531330p5.

P012200 TP sensor circuit 1 low input

TP sensor to ECM sensing

circuit 1: short circuit to
ground, high resistance

TP sensor failure

For TP sensor circuit 1

tests, GO to Pinpoint Test

G531330p4.

P012300 TP sensor circuit 1 low input

TP sensor to ECM sensing

circuit (TP1): short circuit
to power

TP sensor failure

For TP sensor circuit 1

tests, GO to Pinpoint Test

G531330p4.

P012500

Insufficient coolant temp for

closed loop fuel control

Low coolant level

ECT sensor to ECM sensing

circuit: intermittent high
resistance

Engine thermostat failure

ECT sensor failure

Check the coolant level.

For ECT sensor circuit

tests, GO to Pinpoint Test

G531330p3.

P012800

Coolant thermostat (coolant

temp below thermostat

regulating temperature)

Contaminated coolant

Engine coolant thermostat

failure

ECT sensor failure ECT sensor

DTC may also be flagged

Check the coolant anti-

freeze content and

condition. Check the

thermostat condition and

function. Check for ECT

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