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Automatic Transmission/transaxle External Controls: Diagnosis Jaguar X-type I рестайлинг

Automatic Trans 3 illustrations ~1369 words

Inspection and Verification

  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage. WARNING: Danger of accident. Apply the parking brake. Shift the gear selector to P . Failure to follow these instructions may result in personal injury. Visual Inspection Chart Mechanical Electrical Visibly damaged or worn parts Gear selector interlock solenoid Brake pedal switch Fuse(s) Wiring harness for damage or corrosion Electrical connector(s)
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. If the cause is not visually evident, verify the symptom and refer to the Jaguar approved diagnostic system.

Symptom Chart

CAUTIONWhen probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00.

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

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.

Symptom (general)Symptom (specific)Possible sourceAction
Erratic operation of brake shift interlockInterlock function will not operate/releaseBrake shift interlock solenoid circuit failure Brake shift interlock solenoid failureRefer to Pinpoint Test A .

Diagnostic Trouble Code (DTC) Index

Five Digit DTCComponentDescriptionConditionAction
P1780 (To VIN D15361)D-4 switch malfunctionSwitch or circuit malfunctionD-4 switch inoperative or out of rangeRefer to Pinpoint Test B .
P0915 (From VIN D15362)J-Gate inputJ-Gate or circuit malfunctionLeft-hand side of the J-Gate inoperativeRefer to Pinpoint Test C .

Pinpoint Test A: J-GATE SYSTEM CIRCUIT CHECKS

Pinpoint Test A

A1 CHECK IGNITION SUPPLY TO THE J-GATE.
  1. Disconnect the J-Gate electrical connector, IP14.
  2. Turn the ignition switch to the ON position.
  3. Measure the voltage between IP14, pin 01 (WR) and GROUND.
Is the voltage less than 10 Volts?
YES REPAIR the circuit between IP14 pin 01 (WR) and the ignition switch. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. TEST the system for normal operation.
NO Go to step 2 . → 2
A2 CHECK GROUND SUPPLY TO THE J-GATE.
  1. Turn the ignition switch to the OFF position.
  2. Measure the resistance between IP14, pin 02 (B) and GROUND.
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. TEST the system for normal operation.
NO CHECK for CAN DTCs. Refer to «Module Communications Network»(ref-311871) article.

Pinpoint Test E: P1780. D-4 SWITCH MALFUNCTION (TO VIN D15361)

Note. Incorrect adjustment of the selector cable could result in this DTC being set with no electrical fault being present. Refer to Selector Lever Cable Adjustment - General Procedures .

Pinpoint Test E

E1 CHECK IGNITION SUPPLY TO THE J-GATE.
  1. Disconnect the J-Gate electrical connector, IP14.
  2. Turn the ignition switch to the ON position.
  3. Measure the voltage between IP14, pin 01 (WR) 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 appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 2 . → 2
E2 CHECK GROUND SUPPLY TO THE J-GATE.
  1. Turn the ignition switch to the OFF position.
  2. Measure the resistance between IP14, pin 02 (B) and GROUND.
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 3 . → 3
E3 CHECK D-4 SWITCH SIGNAL WIRE FOR HIGH RESISTANCE.
  1. Disconnect the TCM electrical connector, JB131.
  2. 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 appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO INSTALL a new J-Gate. Refer to «Transmission Selector Lever»(ref-311897-S11955723512009050600000) .

Pinpoint Test C: P0915 J-GATE SIGNAL INPUTS TO THE TCM (FROM VIN D15362)

Note. Incorrect adjustment of the selector cable could result in this DTC being set with no electrical fault being present. Refer to Selector Lever Cable Adjustment - General Procedures .

Pinpoint Test C

C1 CHECK TRANSMISSION RANGE SENSOR CONTINUITY IN D.
  1. Disconnect TR sensor electrical connector JB156.
  2. Select D .
  3. Check for continuity between JB156, pin 08 and pin 01 at the sensor.
Is the circuit continuous?
YES Go to step 2 . → C2
NO Carry out the adjustment procedure for the Transmission Range Sensor. Recheck the circuit. If still open circuit, INSTALL a new Transmission Range Sensor. CLEAR the DTC. TEST the system for normal operation.
C2 CHECK TRANSMISSION RANGE SENSOR DRIVE SIGNAL WIRE FOR HIGH RESISTANCE.
  1. Disconnect the TCM electrical connector, JB131.
  2. 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 appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 3 . → 3
C3 CHECK IGNITION SUPPLY TO THE J-GATE.
  1. Disconnect the J-Gate electrical connector, IP14.
  2. Turn the ignition switch to the ON position.
  3. Measure the voltage between IP14, pin 01 (WR) 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 appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 4 . → 4
C4 CHECK GROUND SUPPLY TO THE J-GATE.
  1. Turn the ignition switch to the OFF position.
  2. 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 appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 5 . → 5
C5 CHECK J-GATE SIGNAL INPUT WIRES FOR CONTINUITY (4 RANGE).
  1. Disconnect the TCM electrical connector JB131.
  2. 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 appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 6 . → 6
C6 CHECK THE J-GATE SIGNAL INPUT WIRES FOR CONTINUITY (3 RANGE).
  1. 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 appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 7 . → 7
C7 CHECK THE J-GATE SIGNAL INPUT WIRES FOR CONTINUITY (2 RANGE).
  1. Measure the resistance between IP14 pin 14 (R) and JB131 pin 08 (R).
Is the resistance greater than 5 ohms?
YES REPAIR the high resistance circuit. For additional information, refer to appropriate SYSTEM WIRING DIAGRAMS. CLEAR the DTC. TEST the system for normal operation.
NO Go to step 8 . → 8
C8 J-GATE SIGNALS FUNCTIONALITY
  1. If tests between C1 and C7 have been successfully completed and the fault is still present, INSTALL a new J-Gate.
  2. CLEAR the DTC.
  3. TEST the system for normal operation.
Does the system function correctly?
YES No further action required.
NO Contact dealer technical support for advice on possible module.

Scheme 101

Scheme 101: Setting Procedure-All Vehicles
Scheme 101: Setting Procedure-All Vehicles

Scheme 102

Scheme 102
Scheme 102

Scheme 103

Scheme 103
Scheme 103
  1. Apply the parking brake.
  2. Apply the foot brake.
  3. Turn the ignition switch to position II.
  4. Move the gear selector lever to 'N'.
  5. Raise and support the vehicle. Refer to «Jacking and Lifting»(ref-311833) article.
  6. Remove the gear selector cover plate.
  7. Loosen the gear selector cable retaining bolt.

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