Jaguar XJ (X350). Manual — part 1115

MAF sensor fault (low intake air

flow)

Exhaust leak (before catalyst)

and Filtering - VIN Range:

G45704->G99999 For

fuel line tests, GO to

Pinpoint Test

G532449p2.

For fuel pressure tests,

GO to Pinpoint Test

G532449p8.

For fuel injector

information,

Fuel Injectors (18.10.02)

For MAF sensor circuit

tests,

Electronic Engine

Controls - VIN Range:

G45704->G99999 or

Electronic Engine

Controls - VIN Range:

G45704->G99999 Check

the exhaust system

(before catalyst) for

condition and security,

Exhaust System

P030000

Random/multiple cylinder

misfire detected

ECM to ignition coil primary

circuit faults (cylinder
misfire detected DTCs also
logged)

Ignition coil failure

Spark plug

failure/fouled/incorrect gap

Fuel delivery pressure

(low/high)

Fuel injector circuit fault(s)

(injector DTCs also logged)

Fuel injectors restricted/leaking

Fuel injectors continuously

open

Fuel contamination

For ignition coil and

spark plug tests,

Engine Ignition - VIN

Range: G45704-

>G99999 or

Engine Ignition - VIN

Range: G45704-

>G99999 For fuel

pressure test, GO to

Pinpoint Test

G532449p8.

For fuel injector circuit

tests,

Fuel Charging and

Controls - VIN Range:

G45704->G99999 or

Fuel Charging and

Controls - VIN Range:

G45704->G99999 Check

compressions, valve

gear, etc,

Cylinder compression low

Worn camshaft/broken valve

springs

Valve clearance adjustment

Engine - 2.7L V6 - TdV6

P046129

Fuel level sensor A circuit

range/performance - signal

invalid

Fuel level sensor to rear

electronic module (REM)
circuits; intermittent short
circuit, high resistance

Fuel level sensor failure

REM fault (incorrect fuel level

data)

For fuel level sensor

tests, GO to Pinpoint

Test G532449p3.

P04612F

Fuel level sensor A circuit

range/performance - signal

erratic

Fuel level sensor to rear

electronic module (REM)
circuits; intermittent short
circuit, high resistance

Fuel level sensor failure

REM fault (incorrect fuel level

data)

For fuel level sensor

tests, GO to Pinpoint

Test G532449p3.

P046200

Fuel level sensor A circuit

low input

Fuel level sensor to rear

electronic module (REM)
circuits; intermittent short
circuit to ground or high
resistance

Fuel level sensor failure

REM fault (incorrect fuel level

data)

For fuel level sensor

tests, GO to Pinpoint

Test G532449p3.

P046300

Fuel level sensor A circuit

high input

Fuel level sensor to rear

electronic module (REM)
circuits; intermittent short
circuit to power

Fuel level sensor failure

REM fault (incorrect fuel level

data)

For fuel level sensor

tests, GO to Pinpoint

Test G532449p3.

P062700

Fuel pump A control

circuit/open

Invalid fuel pump duty

requested by ECM

Refer to the warranty

policy and procedures

manual if an ECM is

suspect.

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P062A00

Fuel pump driver module

(FPDM) control circuit

range/performance

(vehicles with supercharger

only)

ECM to FPDM control drive

circuits; intermittent short
circuit, high resistance

FPDM failure

Rear electronic module (REM)

failure

For REM power and

ground tests, GO to

Pinpoint Test

G532449p1.

For FPDM power and

ground tests, GO to

Pinpoint Test

G532449p9.

For ECM to FPDM circuit

tests, GO to Pinpoint

Test G532449p7.

P263500

Fuel pump A low

flow/performance (fuel

pump not activated when

requested by ECM)

ECM to rear electronic module

(REM) drive circuit: short
circuit, high resistance

Fuel pump failure

REM failure

For REM power and

ground tests, GO to

Pinpoint Test

G532449p1.

For ECM to REM circuit

tests, Check the fuel

pressure. GO to Pinpoint

Test G532449p8.

Pinpoint tests

CAUTION: When probing connectors to take measurements in the course of the pinpoint

tests, use the adaptor kit, part number 3548-1358-00.

NOTE:

When performing electrical voltage or resistance tests, always use a digital multimeter (DMM)

accurate to 3 decimal places, and with an up-to-date calibration certificate. When testing

resistance, always take the resistance of the DMM leads into account.

NOTE:

Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.

PINPOINT TEST G532449p1 : REM
POWER AND GROUND CIRCUITS

G532449t1 : CHECK THE IGNITION POWER SUPPLY TO THE REM

1. Disconnect the REM electrical connector, CR12. 2. Key on, engine off. 3. Measure the voltage

between:

REM connector CR12, harness side

Battery

Pin 08

Negative terminal

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the battery and the REM. This circuit includes fuse 19 of the primary

junction box and the inertia switch. For additional information, refer to the wiring diagrams. CLEAR

the DTC, test the system for normal operation.

-> No

GO to Pinpoint Test G532449t2.

G532449t2 : CHECK THE POWER SUPPLY VOLTAGE TO THE REM

1. Key off. 2. Disconnect the REM electrical connector, CR73. 3. Key on, engine off. 4. Make sure the

fuel pump relay is energized. 5. Measure the voltage between:

REM connector CR73, harness side

Battery

Pin 01

Negative terminal

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the battery and the REM. This circuit includes fuse 33 of the rear power

distribution box and the fuel pump relay. For additional information, refer to the wiring diagrams.

CLEAR the DTC, test the system for normal operation.

-> No

GO to Pinpoint Test G532449t3.

G532449t3 : CHECK THE REM GROUNDS FOR HIGH RESISTANCE

1. Key off. 2. Disconnect the REM electrical connector, CR71. 3. Measure the resistance between:

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