Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 360

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Contact dealer technical support for advice on possible module failure.

PINPOINT TEST O : P0748. LINE PRESSURE CONTROL SOLENOID MALFUNCTION

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

O1: CHECK THE LINE PRESSURE CONTROL SOLENOID GROUND CIRCUIT.

Disconnect the transmission electrical connector, JB155.
Measure the resistance between JB155, pin 18 (B) and GROUND.

Is the resistance greater than 5 ohms?
Yes

GO to O3

.

No

GO to O2

.

O2: CHECK THE LINE PRESSURE CONTROL SOLENOID RESISTANCE.

Measure the resistance between JB155, pin 15 and pin 18 at the transmission.

Is the resistance 2.9 ohms?
Yes

GO to O4

.

No

INSTALL a new LPC solenoid. CLEAR the DTC. TEST the system for normal operation.

O3: CHECK THE LINE PRESSURE CONTROL SOLENOID GROUND WIRE FOR CONTINUITY.

Disconnect the TCM electrical connector, JB131.
Measure the resistance between JB155, pin 18 (B) and JB131, pin 17 (B).

Is the resistance greater than 5 ohms?
Yes

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

No

Contact dealer technical support for advice on possible module failure.

O4: CHECK THE LINE PRESSURE CONTROL SOLENOID SIGNAL WIRE FOR CONTINUITY.

Measure the resistance between JB155, pin 15 (R) and JB131, pin 18 (R).

Is the resistance greater than 5 ohms?
Yes

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

No

Contact dealer technical support for advice on possible module failure.

PINPOINT TEST P : P0778. 2/4 BRAKE DUTY PRESSURE CONTROL SOLENOID MALFUNCTION

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

P1: CHECK THE 2/4 BRAKE DUTY PRESSURE CONTROL SOLENOID GROUND CIRCUIT.

Disconnect the transmission electrical connector, JB155.
Measure the resistance between JB155, pin 18 (B) and GROUND.

Is the resistance greater than 5 ohms?
Yes

GO to P3

.

No

GO to P2

.

P2: CHECK THE 2/4 BRAKE DUTY PRESSURE CONTROL SOLENOID RESISTANCE.

Measure the resistance between JB155, pin 16 and pin 18 at the transmission.

Is the resistance 2.9 ohms?
Yes

INSTALL a new 2/4 brake duty pressure control solenoid. CLEAR the DTC. TEST the system for normal operation.

No

GO to P4

.

P3: CHECK THE 2/4 BRAKE DUTY PRESSURE CONTROL SOLENOID GROUND WIRE FOR CONTINUITY.

Disconnect the TCM electrical connector, JB131.
Measure the resistance between JB155, pin 18 (B) and JB131, pin 17 (B).

Is the resistance greater than 5 ohms?
Yes

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

No

Contact dealer technical support for advice on possible module failure.

P4: CHECK THE 2/4 BRAKE DUTY PRESSURE CONTROL SOLENOID SIGNAL WIRE FOR CONTINUITY.

Measure the resistance between JB155, pin 16 (G) and JB131, pin 03 (G).

Is the resistance greater than 5 ohms?
Yes

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

No

Contact dealer technical support for advice on possible module failure.

PINPOINT TEST Q : P1710. CONTROL VALVE SOLENOID GROUND.

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

Q1: CHECK CONTROL VALVE SOLENOID GROUND CIRCUIT.

Disconnect transmission electrical connector, JB155.
Measure the resistance between JB155, pin 18 (B) and GROUND.

Is the resistance greater than 5 ohms?
Yes

GO to Q2

.

No

No electrical fault in GROUND circuit. Possible internal fault. Recheck DTCs.

Q2: CHECK CONTROL VALVE SOLENOID GROUND WIRE FOR CONTINUITY.

Disconnect TCM electrical connector, JB131.

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Measure the resistance between JB155, pin 18 (B) and JB131, pin 17 (B).

Is the resistance greater than 5 ohms?
Yes

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

No

Contact dealer technical support for advice on possible module failure.

PINPOINT TEST R : P0915 J-GATE SIGNAL INPUTS TO THE TCM.

• NOTE: Incorrect adjustment of the selector cable could result in this DTC being set with no electrical fault being present. REFER to
Section

307-05A Automatic Transmission/Transaxle External Controls

/

307-05B Automatic Transmission/Transaxle External Controls

.

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

R1: CHECK TRANSMISSION RANGE SENSOR CONTINUITY IN D.

Disconnect TR sensor electrical connector JB156.
Select D.
Check for continuity between JB156, pin 08 and pin 01 at the sensor.

Is the circuit continuous?
Yes

GO to R2

.

No

Carry out the adjustment procedure for the transmission range sensor.
REFER to

Transmission Range (TR) Sensor Adjustment

in this section.

Recheck the circuit. If still open circuit, INSTALL a new transmission range sensor.
REFER to

Transmission Range (TR) Sensor

in this section.

CLEAR the DTC. TEST the system for normal operation.

R2: CHECK TRANSMISSION RANGE SENSOR DRIVE SIGNAL WIRE FOR HIGH RESISTANCE.

Disconnect the TCM electrical connector, JB131.
Measure the resistance between JB131, pin 27 (Y) and JB156, pin 01 (Y).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to R3

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R3: CHECK POWER SUPPLY TO THE J-GATE.

Disconnect the J-Gate electrical connector, IP14.
Turn the ignition switch to the ON position.
Measure the voltage between IP14, pin 01 (W R) and GROUND.

Is the voltage less than 10 volts?
Yes

REPAIR the circuit between IP14, pin 01 (WR) and the ignition switch (this circuit includes the central junction fuse
box, ignition relay, and inertia switch). For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST
the system for normal operation.

No

GO to R4

.

R4: CHECK GROUND SUPPLY TO THE J-GATE.

Turn the ignition switch to the OFF position.
Measure the resistance between J-Gate electrical connector IP14, pin 02 (B) and GROUND.

Is the resistance greater than 5 ohms?
Yes

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

No

GO to R5

.

R5: CHECK J-GATE SIGNAL INPUT WIRES FOR CONTINUITY (4 RANGE).

Disconnect the TCM electrical connector JB131.
Measure the resistance between IP14 pin 05 (BW) and JB131 pin 45 (BW).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to R6

.

R6: CHECK THE J-GATE SIGNAL INPUT WIRES FOR CONTINUITY (3 RANGE).

Measure the resistance between IP14 pin 15 (O) and JB131 pin 07 (O).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to R7

.

R7: CHECK THE J-GATE SIGNAL INPUT WIRES FOR CONTINUITY (2 RANGE).

Measure the resistance between IP14 pin 14 (R) and JB131 pin 08 (R).

Is the resistance less than 5 ohms?
Yes

GO to R8

.

No

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

R8: J-GATE SIGNALS FUNCTIONALITY

If tests between R1 and R7 have been successfully completed and the fault is still present, INSTALL a new J-Gate.
CLEAR the DTC.
TEST the system for normal operation.

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Does the system function correctly?
Yes

No further action required.

No

Contact dealer technical support for advice on possible module failure.

PINPOINT TEST S : P0791. INTERMEDIATE SPEED SENSOR MALFUNCTION (FROM VIN C79329)

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

S1: CHECK THE INTERMEDIATE SPEED SENSOR GROUND CIRCUIT.

Disconnect the transmission electrical connector, JB155.
Measure the resistance between JB155, pin 03 (B) and GROUND (shielded cable).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to S2

.

S2: CHECK THE INTERMEDIATE SPEED SENSOR GROUND CIRCUIT FOR CONTINUITY.

Disconnect the TCM electrical connector, JB131.
Measure the resistance between JB155, pin 03 (B) and JB131, pin 46 (B).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to S3

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S3: CHECK THE INTERMEDIATE SPEED SENSOR SIGNAL WIRE FOR CONTINUITY.

Measure the resistance between JB155, pin 4 (N) and JB131, pin 21 (N).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to G4

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S4: CHECK THE RESISTANCE OF THE INTERMEDIATE SPEED SENSOR.

Measure the resistance between JB155, pin 13 and pin 04 at the transmission.

Is the resistance 550 ohms?
Yes

Contact dealer technical support for advice on possible module failure.

No

INSTALL a new transaxle.
REFER to

Transaxle -

in this section.

CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST T : P0720. OUTPUT SPEED SENSOR MALFUNCTION (FROM VIN C79329)

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

T1: CHECK THE OUTPUT SPEED SENSOR GROUND CIRCUIT.

Disconnect the transmission electrical connector, JB155.
Measure the resistance between JB155, pin 05 (B) and GROUND (shielded cable).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to T2

.

T2: CHECK THE OUTPUT SPEED SENSOR GROUND CIRCUIT FOR CONTINUITY.

Disconnect the TCM electrical connector, JB131.
Measure the resistance between JB155, pin 05 (B) and JB131, pin 42 (B).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to T3

.

T3: CHECK THE OUTPUT SPEED SENSOR SIGNAL WIRE FOR CONTINUITY.

Measure the resistance between JB155, pin 06 (N) and JB131, pin 05 (N).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to T4

.

T4: CHECK THE RESISTANCE OF THE OUTPUT SPEED SENSOR.

Measure the resistance between JB155, pin 05 and pin 06 at the transmission.

Is the resistance 550 ohms?
Yes

Contact dealer technical support for advice on possible module failure.

No

INSTALL a new transaxle.
REFER to

Transaxle -

in this section.

CLEAR the DTC. TEST the system for normal operation.

PINPOINT TEST U : P0715. TURBINE SPEED SENSOR MALFUNCTION (FROM VIN C79329)

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

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U1: CHECK THE TURBINE SPEED SENSOR GROUND CIRCUIT.

Disconnect the transmission electrical connector, JB155.
Measure the resistance between JB155, pin 01 (B) and GROUND (shielded cable).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to U2

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U2: CHECK THE TURBINE SPEED SENSOR GROUND CIRCUIT FOR CONTINUITY.

Disconnect the TCM electrical connector, JB131.
Measure the resistance between JB155, pin 01 (B) and JB131, pin 44 (B).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to U3

.

U3: CHECK THE TURBINE SPEED SENSOR SIGNAL WIRE FOR CONTINUITY.

Measure the resistance between JB155, pin 2 (N) and JB131, pin 24 (N).

Is the resistance greater than 5 ohms?
Yes

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

No

GO to U4

.

U4: CHECK THE RESISTANCE OF THE OUTPUT SPEED SENSOR.

Measure the resistance between JB155, pin 01 and pin 02 at the transmission.

Is the resistance 550 ohms?
Yes

Contact dealer technical support for advice on possible module failure.

No

INSTALL a new transaxle.
REFER to

Transaxle -

in this section.

CLEAR the DTC. TEST the system for normal operation.