Jaguar X-Type Sedan and Estate (Wagon). Manual - part 328

1
2
3

1
2

Is the voltage greater than 4 volts?
Yes

GO to X4

REPAIR the circuit between the MAP sensor electrical connector EN8 pin 2 (OY) and the sensor 5 volt supply bus.
CLEAR the DTC. TEST the system for normal operation.

(The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

X4: CHECK THE POWER SUPPLY CIRCUIT TO THE MAP SENSOR FOR SHORT TO BATTERY

Measure the voltage between MAP sensor electrical connector EN8 pin 2 (OY) and GROUND.

Is the voltage greater than 6 volts?
Yes

REPAIR the circuit between the MAP sensor electrical connector EN8 pin 2 (OY) and the sensor 5 volt supply bus.
CLEAR the DTC. TEST the system for normal operation.

(The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

GO to X5

X5: CHECK THE POWER SUPPLY 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.

Disconnect the FTP sensor electrical connector FT1. (See note above).
Turn the ignition switch to the ON position.
Measure the voltage between FTP sensor electrical connector FT1 pin 1 (OY) and GROUND.

Is the voltage greater than 4 volts?
Yes

GO to X6

REPAIR the circuit between the FTP sensor electrical connector FT1 pin 1 (OY) and the sensor 5 volt supply bus.
CLEAR the DTC. TEST the system for normal operation.

(The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

X6: CHECK THE POWER SUPPLY CIRCUIT TO THE FTP SENSOR FOR SHORT TO BATTERY

Measure the voltage between FTP sensor electrical connector FT1 pin 1 (OY) and GROUND.

Is the voltage greater than 6 volts?
Yes

REPAIR the circuit between the FTP sensor electrical connector FT1 pin 1 (OY) and the sensor 5 volt supply bus.
CLEAR the DTC. TEST the system for normal operation.

(The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

GO to X7

X7: CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR

Disconnect the APP sensor electrical connector.
Turn the ignition switch to the ON position.
Measure the voltage between APP sensor electrical connector PA1 pin 5 (OY) and GROUND.

Is the voltage greater than 4 volts?
Yes

GO to X8

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

(The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

X8: CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR FOR SHORT TO BATTERY

Measure the voltage between APP sensor electrical connector PA1 pin 5 (OY) and GROUND.

Is the voltage greater than 6 volts?
Yes

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

(The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

GO to X9

X9: CHECK THE POWER SUPPLY CIRCUIT TO THE TP SENSOR

Turn the ignition switch to the ON position.
Measure the voltage between TP sensor electrical connector EN13 pin 2 (OY) and GROUND.

Is the voltage greater than 4 volts?
Yes

GO to X10

REPAIR the circuit between the TP sensor electrical connector EN13 pin 2 (OY) and the sensor 5 volt supply bus.
CLEAR the DTC. TEST the system for normal operation.

(The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

X10: CHECK THE POWER SUPPLY CIRCUIT TO THE TP SENSOR FOR SHORT TO BATTERY

Measure the voltage between TP sensor electrical connector EN13 pin 2 (OY) and GROUND.

Is the voltage greater than 6 volts?
Yes

REPAIR the circuit between the TP sensor electrical connector EN13 pin 2 (OY) and the sensor 5 volt supply bus.
CLEAR the DTC. TEST the system for normal operation.

(The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

GO to X11

X11: CHECK THE POWER SUPPLY CIRCUIT TO THE AIR CONDITIONING PRESSURE (ACP) SENSOR

Turn the ignition switch to the ON position.
Measure the voltage between ACP sensor electrical connector JB106 pin 2 (OY) and GROUND.

Is the voltage greater than 4 volts?
Yes

GO to X12

REPAIR the circuit between the ACP sensor electrical connector JB106 pin 2 (OY) and the sensor 5 volt supply
bus. CLEAR the DTC. TEST the system for normal operation.

(The fault could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring diagrams)

X12: CHECK THE POWER SUPPLY CIRCUIT TO THE AIR CONDITIONING PRESSURE SENSOR FOR SHORT TO BATTERY

Measure the voltage between ACP sensor electrical connector JB106 pin 2 (OY) and GROUND.

Is the voltage greater than 6 volts?
Yes

REPAIR the circuit between the ACP sensor electrical connector JB106 pin 2 (OY) and the sensor 5 volt supply
bus. CLEAR the DTC. TEST the system for normal operation.

(The short could be in any of the other sensors in this circuit, or in any of the spurs in this circuit. For additional information, refer to w iring
diagrams.)

No electrical fault in power supply circuit. Recheck DTCs using the Jaguar approved diagnostic system, or code
reader.

(This fault could also be a PSV failure w ithin the ECM.)

PINPOINT TEST Y : P1243. SENSOR GROUND CIRCUITS.

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

Y1: 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 Y2

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)

Y2: 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 Y3

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)

Y3: 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 Y4

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)

Y4: 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 Y5

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)

Y5: 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 Y6

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)

Y6: CHECK THE GROUND CIRCUIT TO THE FTP 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 Y7

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)

Y7: CHECK THE GROUND CIRCUIT TO THE APP SENSOR (TRACK 1)

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

1
2

1
2
3

Is the resistance less than 5 ohms?
Yes

GO to Y8

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)

Y8: 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 Y9

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)

Y9: CHECK THE GROUND CIRCUIT TO THE APP SENSOR (TRACK 3)

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

Is the resistance less than 5 ohms?
Yes

GO to Y10

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)

Y10: 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 Z : P1122, P1123, P1344. 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).

Is the voltage greater than 1 volt?
Yes

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

GO to Z5

Z5: CHECK CONTINUITY OF THE APP SENSOR SIGNAL WIRE

Turn the ignition switch to the OFF position.
Disconnect the APP sensor electrical connector PA1.
Measure the resistance between APP sensor electrical connector PA1 pin 4 (R) and the ECM electrical connector EN16
pin 102 (R).

1
2

1
2
3

1
2

Is the resistance less than 5 ohms?
Yes

GO to Z6

REPAIR the circuit between the APP sensor electrical connector PA1 pin 4 (R) and the ECM electrical connector EN16
pin 102 (R). For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal
operation.

Z6: CHECK CONTINUITY OF THE APP SENSOR POTENTIOMETER

Measure the resistance between APP sensor electrical connector PA1 pins 4 and 6.
Operate the accelerator pedal through it's full range while observing the resistance reading.

Does the resistance vary as the pedal is operated?
Yes

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.

INSTALL a new accelerator pedal position sensor,
REFER to:

Accelerator Pedal

(310-02 Acceleration Control, Removal and Installation).

CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST AA : P1215, P1216, P1344. APP SENSOR ( TRACK 3)

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

AA1: CHECK THE POWER SUPPLY CIRCUIT TO THE APP SENSOR. TRACK 3

Turn the ignition switch to the ON position.
Measure the voltage between APP sensor electrical connector PA1 pin 1(Y) and GROUND.

Is the voltage greater than 4 volts?
Yes

GO to AA2

REPAIR the circuit between the APP sensor electrical connector PA1 pin 1 (Y) and the sensor 5 volt supply. 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. This supply is also
linked to other sensors. The fault could be in any of these or their w iring.)

AA2: CHECK THE GROUND CIRCUIT TO THE APP SENSOR

Turn the ignition switch to the OFF position.
Disconnect the APP sensor electrical connector PA1.
Measure the resistance between APP sensor electrical connector PA1 pin 3 (BG) and GROUND.

Is the resistance less than 5 ohms?
Yes

GO to AA5

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.)

AA3: 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 19 (BG) and PA1 pin 3 (BG).

Is the resistance less than 5 ohms?
Yes

GO to AA4

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

AA4: 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 3 (BG).

Is the voltage greater than 1 volt?
Yes

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

GO to AA5

AA5: CHECK CONTINUITY OF THE APP SENSOR SIGNAL WIRE

Measure the resistance between APP sensor electrical connector PA1 pin 1 (Y) and the ECM electrical connector EN16
pin 103 (Y).

Is the resistance less than 5 ohms?
Yes

GO to AA6

REPAIR the circuit between the APP sensor electrical connector PA1 pin 1 (Y) and the ECM electrical connector EN16
pin 103 (Y). For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal
operation.

AA6: CHECK CONTINUITY OF THE APP SENSOR POTENTIOMETER

Measure the resistance between APP sensor electrical connector PA1 pins 1and 3.
Operate the accelerator pedal through it's full range while observing the resistance reading.

Does the resistance vary as the pedal is operated?
Yes

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.

INSTALL a new accelerator pedal position sensor,

Content .. 326 327 328 329 ..