Jaguar XJ (X350). Manual — part 896

P0103

Mass air flow (MAF)

sensor sensing circuit high

voltage

MAF sensor to ECM sensing

circuit; short circuit to
B+ voltage

MAF sensor to ECM ground

circuit; open circuit

MAF sensor failure

For MAF sensor tests, GO to

Pinpoint Test G258127p1.

P0105

Manifold absolute

pressure (MAP) sensor

range/performance

Intake manifold air leak

(loose or missing
component)

MAP sensor to ECM

circuit(s) fault

MAP sensor failure

Throttle adaptation fault

(check throttle position
voltage at ignition ON)

Check air intake system. For

further information,

Intake Air Distribution and

Filtering - VIN Range: G00442-

>G45703 For MAP sensor circuit

tests, GO to Pinpoint Test

G258127p33.

Throttle adaptation is automatic

at key on.

P0106

BARO sensor circuit

range/performance

BARO failure (internal ECM

fault)

Contact dealer technical support

for advice on possible ECM

failure.

P0107

BARO sensor circuit, low

voltage

BARO failure (internal ECM

fault)

Contact dealer technical support

for advice on possible ECM

failure.

P0108 BARO circuit, high voltage

BARO failure (internal ECM

fault)

Contact dealer technical support

for advice on possible ECM

failure.

P0111

Intake air temperature

(IAT) sensor

range/performance

Blocked air filter

Air intake leak

Engine breather leak

IAT sensor to ECM wiring;

open circuit or high
resistance

IAT sensor to ECM sensing

circuit; short circuit to
high voltage

IAT sensor failure

Check air filter element, air

intake system for leaks. For

further information,

Intake Air Distribution and

Filtering - VIN Range: G00442-

>G45703 Check engine breather

system. For further information,

Engine Emission Control - VIN

Range: G00442->G45703 For

IAT sensor tests, GO to Pinpoint

Test G258127p2.

P0112

Intake air temperature

(IAT) sensor circuit high

voltage (low air

temperature)

IAT sensor disconnected

IAT sensor to ECM wiring;

open circuit or high
resistance

IAT sensor to ECM sensing

circuit short circuit to B+
voltage

IAT sensor failure

For IAT sensor tests, GO to

Pinpoint Test G258127p2.

P0113

Intake air temperature

(IAT) sensor circuit low

voltage (high air

temperature)

IAT sensor to ECM wiring

short circuit to ground

IAT sensor failure

For IAT sensor tests, GO to

Pinpoint Test G258127p2.

P0116

Engine coolant

temperature (ECT) sensor

circuit range/performance

ECT sensor disconnected

Low coolant level

Contaminated coolant

Thermostat failure

ECT sensor to ECM sensing

circuit; open circuit,
high resistance when
hot, intermittent high
resistance

ECT sensor failure

Engine cooling fan stuck on

high speed

Above normal air flow

through engine
compartment, due to
accident damage and/or
missing panels

Refer to visual inspection table

in this section, check sensor

connections, coolant level and

condition, thermostat operation.

For ECT sensor tests, GO to

Pinpoint Test G258127p3.

P0117

Engine coolant

temperature (ECT) sensor

sensing circuit high

voltage (low coolant

temperature)

ECT sensor disconnected

ECT sensor to ECM sensing

circuit; high resistance,
open circuit, short
circuit to B+ voltage

ECT sensor failure

For ECT sensor tests, GO to

Pinpoint Test G258127p3.

www.

P0118

Engine coolant

temperature (ECT) sensor

sensing circuit low voltage

(high coolant

temperature)

Engine overheat condition

ECT sensor to ECM wiring

short circuit to ground

ECT sensor failure

Check for overheating, for

further information,

Engine Cooling For ECT sensor

tests, GO to Pinpoint Test

G258127p3.

P0121

Throttle position (TP)

sensor circuit

range/performance (TP1

compared to TP2)

TP sensor to ECM wiring;

open circuit, high
resistance

TP sensor to ECM sensing

circuits; (TP 1 or TP 2)
short circuit to B+
voltage

TP sensor failure

For TP sensor tests, GO to

Pinpoint Test G258127p4.

P0122

Throttle position (TP)

sensor circuit 1 low

voltage

TP sensor to ECM sensing

circuit (TP1); open
circuit, short circuit to
ground, high resistance

TP sensor failure

For TP sensor tests, GO to

Pinpoint Test G258127p4.

P0123

Throttle position (TP)

sensor circuit 1 high

voltage

TP sensor to ECM sensing

circuit (TP1); short
circuit to high voltage

TP sensor failure

For TP sensor tests, GO to

Pinpoint Test G258127p4.

P0125

Engine coolant

temperature (ECT) sensor

response (for closed loop

fuel control) (coolant

thermostat monitor)

ECT sensor disconnected

Low coolant level

Contaminated coolant

Thermostat failure

ECT sensor to ECM sensing

circuit; high resistance,
open circuit or short
circuit to high voltage

Engine cooling fan stuck on

high speed

Above normal air flow

through engine
compartment, due to
accident damage and/or
missing panels

Refer to visual inspection table

in this section, check sensor

connections, coolant level and

condition, thermostat operation.

For ECT sensor tests, GO to

Pinpoint Test G258127p3.

Check for associated codes

related to cooling fan. Check the

vehicle for panel damage.

P0128

Coolant thermostat

range/performance

Contaminated coolant

Engine coolant thermostat

failure

ECT sensor failure

ECT sensor DTC may also be

flagged

Check coolant level and

condition, check thermostat

operation,

Engine Cooling Check for

associated codes related to ECT

sensor.

P0131

Right-hand H02S sensing

circuit low current

(universal oxygen sensor;

lean condition at ECM -

high current at sensor)

H02S disconnected

H02S to ECM variable

current circuit fault
(HO2S pin 3)

ECM to HO2S constant

current circuit fault
(HO2S pin 4)

H02S failure

For HO2S tests, GO to Pinpoint

Test G258127p6.

P0132

Right-hand H02S sensing

circuit high current

(universal oxygen sensor;

rich condition at ECM -

low current at sensor)

H02S disconnected

H02S to ECM variable

current circuit fault
(HO2S pin 3)

ECM to HO2S constant

current circuit fault
(HO2S pin 4)

H02S failure

For HO2S tests, GO to Pinpoint

Test G258127p6.

P0133

Right-hand H02S sensing

circuit slow response

Engine misfire

H02S disconnected

H02S mechanical damage

H02S to ECM wiring fault

H02S short circuit to ground

H02S to ECM wiring shield

open circuit

HO2S heater circuit fault

H02S failure

Check for associated codes

related to misfire, (P0300 to

P0308) inspect the HO2S for

connection/damage. For HO2S

diagnosis, GO to Pinpoint Test

G258127p6.

For HO2S heater diagnosis, GO

to Pinpoint Test G258127p9.

Check for exhaust leak, for

further information,

Exhaust temperature will be low

if misfire/poor fuel supply

condition exists. Catalytic

converter efficiency will be poor

until it reaches "light-off".

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