Jaguar X-Type Sedan and Estate (Wagon). Manual - part 335

1
2

1
2
3
4

1
2

Is the voltage greater than 10 volts?
Yes

GO to T2

REPAIR the circuit between pin 1 of the throttle motor relay base and the EMS control relay. For additional
information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.

T2: CHECK CONTINUITY OF THE THROTTLE MOTOR RELAY SIGNAL WIRE

Turn the ignition switch to the OFF position.
Measure the resistance between the throttle motor relay base, pin 2 and the ECM electrical connector EN16 pin 52
(GR).

Is the resistance less than 5 ohms?
Yes

GO to T3

REPAIR the circuit between the throttle motor relay base pin 2 and the ECM electrical connector EN16 pin 52 (GR). For
additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.

T3: CHECK THE THROTTLE MOTOR RELAY SIGNAL WIRE FOR SHORT TO BATTERY

Turn the ignition switch to the OFF position.
Remove the throttle motor relay.
Disconnect the ECM electrical connector EN16.
Check for a voltage between the throttle motor relay base pin 2 and GROUND.

Is the voltage greater than 1 volt?
Yes

REPAIR the short to battery. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.

GO to T4

T4: CHECK THE THROTTLE MOTOR RELAY SIGNAL WIRE FOR SHORT TO GROUND

Measure the resistance between the throttle motor relay base pin 2 and GROUND.

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short to GROUND. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system
for normal operation.

GO to T5

T5: CHECK CONTINUITY OF THE THROTTLE MOTOR RELAY OUTPUT WIRE

Test for continuity between throttle motor relay base pin 5 and ECM electrical connector EN16 pin 134 (RW ).

Is the circuit continuous?
Yes

INSTALL a new throttle motor relay. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated,
INSTALL a new ECM.
REFER to:

Engine Control Module (ECM)

(303-14B Electronic Engine Controls - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi

(110kW/150PS) - Puma, Removal and Installation).
Before replacing a ECM, contact Dealer technical support.

REPAIR the circuit between throttle motor relay base pin 2 and ECM electrical connector EN16 pin 134 (RW ). For
additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal operation.

T6: CHECK THE THROTTLE MOTOR RELAY OUTPUT WIRE FOR SHORT TO BATTERY

Check for a voltage between the throttle motor relay base pin 5 and GROUND.

Is the voltage greater than 1 volt?
Yes

REPAIR the short to battery. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.

GO to T7

T7: CHECK THE THROTTLE MOTOR RELAY OUTPUT WIRE FOR SHORT TO GROUND

Measure the resistance between the throttle motor relay base pin 5 and GROUND.

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short to GROUND. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system
for normal operation.

INSTALL a new throttle motor relay. For additional information, refer to the electrical guide. CLEAR the DTC. TEST the
system for normal operation. If the DTC is repeated, INSTALL a new ECM.
REFER to:

Engine Control Module (ECM)

(303-14B Electronic Engine Controls - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi

(110kW/150PS) - Puma, Removal and Installation).
Before replacing an ECM, contact dealer technical support.

PINPOINT TEST U : P1549. IMT VALVE 1

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

U1: CHECK THE POWER SUPPLY CIRCUIT TO THE IMT VALVE 1

Turn the ignition switch to the ON position.
Measure the voltage between IMT valve 1 electrical connector EN999 pin 1 (NG) and GROUND.

Is the voltage greater than 10 volts?
Yes

GO to U2

REPAIR the circuit between the IMT valve 1 electrical connector EN999 pin 1 (NG) and the Battery power bus 2. CLEAR
the DTC. TEST the system for normal operation.

(This circuit includes the pow er distribution fuse box and the EMS control relay. For additional information, refer to w iring diagrams.)

U2: CHECK CONTINUITY OF THE IMT VALVE 1 SIGNAL WIRE.

Disconnect the ECM electrical connector EN16.
Measure the resistance between the IMT valve 1 electrical connector EN999 pin 2 (OY) and the ECM electrical
connector EN16 pin 38 (OY).

1
2
3

1
2

1
2
3

Is the resistance less than 5 ohms?
Yes

GO to U3

REPAIR the circuit between the IMT valve 1 electrical connector EN999 pin 2 (OY) and the ECM electrical connector
EN16 pin 38 (OY). For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal
operation.

U3: CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO GROUND

Measure the resistance between EN999 pin 2 (OY) and GROUND.

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short to GROUND. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system
for normal operation.

GO to U4

U4: CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO BATTERY

Connect the ECM electrical connector EN16.
Turn the ignition switch to the ON position.
Check for a voltage at EN999 pin 2 (OY).

Is the voltage greater than 10 volts?
Yes

REPAIR the short to battery. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.

INSTALL a new IMT valve. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a
new ECM.
REFER to:

Engine Control Module (ECM)

(303-14A Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 -

AJV6/3.0L NA V6 - AJ27, Removal and Installation).
Before replacing an ECM, contact dealer technical support. CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST V : P1532. IMT VALVE 2

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

V1: CHECK THE POWER SUPPLY CIRCUIT TO THE IMT VALVE 2

Turn the ignition switch to the ON position.
Measure the voltage between IMT valve 2 electrical connector EN998 pin 1 (NG) and GROUND.

Is the voltage greater than 10 volts?
Yes

GO to V2

REPAIR the circuit between the IMT valve 2 electrical connector EN998 pin 1 (NG) and the Battery power bus 2. CLEAR
the DTC. TEST the system for normal operation.

(This circuit includes the pow er distribution fuse box and the EMS control relay. For additional information, refer to w iring diagrams.)

V2: CHECK CONTINUITY OF THE IMT VALVE 2 SIGNAL WIRE

Disconnect the ECM electrical connector EN16.
Measure the resistance between the IMT valve 2 electrical connector EN998 pin 2 (OY) and the ECM electrical
connector EN16 pin 39 (OY).

Is the resistance less than 5 ohms?
Yes

GO to V3

REPAIR the circuit between the IMT valve 2 electrical connector EN998 pin 2 (OY)and the ECM electrical connector
EN16 pin 39 (OY). For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal
operation.

V3: CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO GROUND

Measure the resistance between EN998 pin 2 (OY) and GROUND.

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short to GROUND. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system
for normal operation.

GO to V4

V4: CHECK IMT VALVE SIGNAL WIRE FOR SHORT TO BATTERY

Connect the ECM electrical connector EN16.
Turn the ignition switch to the ON position.
Check for a voltage at EN998 pin 2 (OY).

Is the voltage greater than 10 volts?
Yes

REPAIR the short to battery. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for
normal operation.

INSTALL a new IMT valve. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a
new ECM.
REFER to:

Engine Control Module (ECM)

(303-14A Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 -

AJV6/3.0L NA V6 - AJ27, Removal and Installation).
Before replacing an ECM, contact dealer technical support.

PINPOINT TEST W : P1582. FLIGHT RECORDER DATA STORED

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

W1: EXTRACT THE FLIGHT RECORDER DATA

• NOTE: Flight recorder data can only be extracted using the Jaguar approved diagnostic system, where available.

Connect the Jaguar approved diagnostic system, or code reader.

Is DTC P1582 stored?
Yes

Refer to dealer technical support for information on extracting data.

Test not applicable.

PINPOINT TEST X : P1243. SENSOR GROUND CIRCUITS.

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

X1: CHECK THE GROUND CIRCUIT TO THE ECT SENSOR

Measure the resistance between ECT sensor electrical connector EN18 pin 1 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X2

REPAIR the circuit between the ECT sensor electrical connector EN18 pin 1 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X2: CHECK THE GROUND CIRCUIT TO THE EOT SENSOR

Measure the resistance between EOT sensor electrical connector EN25 pin 2 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X3

REPAIR the circuit between the EOT sensor electrical connector EN25 pin 2 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X3: CHECK THE GROUND CIRCUIT TO THE IP SENSOR

Measure the resistance between IP sensor electrical connector IJ7 pin 2 (W G) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X4

REPAIR the circuit between the IP sensor electrical connector IJ7 pin 2 (W G) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X4: CHECK THE GROUND CIRCUIT TO THE EFT SENSOR

Measure the resistance between EFT sensor electrical connector IJ8 pin 1 (NU) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X5

REPAIR the circuit between the EFT sensor electrical connector IJ8 pin 1 (NU) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X5: CHECK THE GROUND CIRCUIT TO THE MAP SENSOR

Measure the resistance between MAP sensor electrical connector EN8 pin 4 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X6

REPAIR the circuit between the MAP sensor electrical connector EN8 pin 4 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X6: CHECK THE GROUND CIRCUIT TO THE FTP SENSOR

• NOTE: Access to the FTP sensor involves the removal of the fuel tank. To reduce the amount of work necessary, a slave harness could be
used. This can be connected at the access port beneath the rear seat. Tests can then be carried out via the slave harness and sensor. If
system operation is normal with the slave harness and sensor, the fault lies in the vehicle's harness or sensor.

Measure the resistance between FTP sensor electrical connector FT1 pin 3 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X7

REPAIR the circuit between the FTP Sensor electrical connector FT1 pin 3 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X7: CHECK THE GROUND CIRCUIT TO THE APP SENSOR (TRACK 1)

Measure the resistance between APP sensor electrical connector PA1 pin 3 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X8

REPAIR the circuit between the APP sensor electrical connector PA1 pin 3 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X8: CHECK THE GROUND CIRCUIT TO THE TP SENSOR

Measure the resistance between TP sensor electrical connector EN13 pin 1 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to X9

REPAIR the circuit between the TP sensor electrical connector EN13 pin 1 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X9: CHECK THE GROUND CIRCUIT TO THE APP SENSOR (TRACK 3)

Measure the resistance between APP sensor electrical connector PA1 pin 6 (BG) and GROUND.

1
2
3

1
2

1
2
3

Is the resistance less than 5 ohms?
Yes

GO to X10

REPAIR the circuit between the APP sensor electrical connector PA1 pin 6 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

X10: CHECK THE GROUND CIRCUIT TO THE AIR CONDITIONING PRESSURE SENSOR

Measure the resistance between ACP sensor electrical connector JB106 pin 1 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

No electrical fault in ground circuit. Recheck DTCs.

REPAIR the circuit between the ACP sensor electrical connector JB106 pin 1 (BG) and GROUND. CLEAR the DTC.
TEST the system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

PINPOINT TEST Y : P0480. RADIATOR COOLING FAN MODULE DRIVE

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

Y1: CHECK THE PULSE WIDTH MODULATED SIGNAL TO THE COOLING FAN MODULE

Disconnect the radiator cooling fan module electrical connector PWM1.
RUN the engine to a temperature at which the cooling fans would operate.
Using a suitable meter, test for a pulse width modulated signal at PWM1 pin 3 (WU).

Is a PW M signal present?
Yes

INSTALL a new cooling fan module. CLEAR the DTC. TEST the system for normal operation.

GO to Y2

Y2: CHECK CONTINUITY OF THE RADIATOR COOLING FAN MODULE SIGNAL WIRE

Turn the ignition switch to the OFF position.
Disconnect the ECM electrical connector EN16.
Measure the resistance between the radiator cooling fan module electrical connector PWM1 pin 3 (W U) and the ECM
electrical connector EN16 pin 51 (WU).

Is the resistance less than 5 ohms?
Yes

INSTALL a new ECM.
REFER to:

Engine Control Module (ECM)

(303-14A Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 -

AJV6/3.0L NA V6 - AJ27, Removal and Installation).
Before replacing an ECM, contact dealer technical support.

REPAIR the circuit between the radiator cooling fan module electrical connector PW M1 pin 3 (WU) and the ECM
electrical connector EN16 pin 51 (WU). For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the
system for normal operation.

PINPOINT TEST Z : P0226, P0227, P0228. APP SENSOR ( TRACK 1)

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

Z1: CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR. TRACK 1

Turn the ignition switch to the ON position.
Measure the voltage between APP sensor electrical connector PA1 pin 2 (Y) and GROUND.

Is the voltage greater than 4volts?
Yes

GO to Z2

REPAIR the circuit between the APP sensor electrical connector PA1 pin 2 (Y) and the sensor 5 volt supply 2. CLEAR
the DTC. TEST the system for normal operation.

(This circuit includes the ECM, EMS control relay, and pow er distribution fuse box. For additional information, refer to w iring diagrams.)

Z2: CHECK THE GROUND CIRCUIT TO THE APP SENSOR

Turn the ignition switch to the OFF position.
Disconnect APP Sensor electrical connector PA1.
Measure the resistance between APP sensor electrical connector PA1 pin 6 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to Z5

REPAIR the circuit between the APP sensor electrical connector PA1 pin 6 (BG) and GROUND. CLEAR the DTC. TEST the
system for normal operation.

(This circuit includes the ECM. For additional information, refer to w iring diagrams.)

Z3: CHECK THE GROUND CIRCUIT TO THE APP SENSOR. FOR CONTINUITY

Disconnect the ECM electrical connector EN16.
Disconnect the APP sensor electrical connector PA1.
Measure the resistance between EN16 pin 20 (BG) and PA1 pin 6 (BG).

Is the resistance less than 5 ohms?
Yes

GO to Z4

REPAIR the circuit. For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal
operation.

Z4: CHECK THE GROUND CIRCUIT TO THE APP SENSOR. FOR SHORT TO BATTERY

Connect the ECM electrical connector EN16.
Turn the ignition switch to the ON position.
Check for a voltage at PA1 pin 6 (BG).

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