Jaguar XJ (X350). Manual — part 1350

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the phone module and battery. This circuit includes the primary junction

box (fuse 30). For additional information, refer to the wiring diagrams. TEST the system for normal

operation.

-> No

GO to Pinpoint Test G239843t54.

G239843t54 : CHECK THE ACCESSORY SUPPLY TO THE PHONE MODULE

1. Turn the ignition switch to the ACC position. 2. Measure the voltage between TL07, pin 14 (YU) and

GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the phone module and battery. This circuit includes the primary junction

box (fuse 20) and the ignition switch. For additional information, refer to the wiring diagrams. TEST

the system for normal operation.

-> No

GO to Pinpoint Test G239843t55.

G239843t55 : CHECK THE IGNITION SUPPLY TO THE PHONE MODULE

1. Turn the ignition switch to the ON position. 2. Measure the voltage between TL07, pin 29 (WR) and

GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the phone module and battery. This circuit includes the primary junction

box (fuse 32) and the ignition switch. For additional information, refer to the wiring diagrams. TEST

the system for normal operation.

-> No

GO to Pinpoint Test G239843t56.

G239843t56 : CHECK THE GROUND TO THE PHONE MODULE

1. Measure the resistance between TL07, pins 09 and 25 (BK) and GROUND.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. TEST the

system for normal operation.

-> No

CHECK for DTCs indicating a wake-up circuit or optical ring fault. REFER to the DTC index.

PINPOINT TEST G239843p9 : CHECK
THE SUPPLIES AND GROUNDS TO THE
VOICE CONTROL MODULE

G239843t57 : CHECK THE PERMANENT SUPPLY TO THE VACM

1. Disconnect the voice module electrical connector, TL68. 2. Measure the voltage between TL68, pin

22 (RW) and GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the voice module and battery. This circuit includes the primary junction

box (fuse 30). For additional information, refer to the wiring diagrams. TEST the system for normal

operation.

-> No

GO to Pinpoint Test G239843t58.

G239843t58 : CHECK THE ACCESSORY SUPPLY TO THE VACM

1. Turn the ignition switch to the ACC position. 2. Measure the voltage between TL68, pin 08 (YU) and

GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the phone module and battery. This circuit includes the primary junction

box (fuse 20) and the ignition switch. For additional information, refer to the wiring diagrams. TEST

the system for normal operation.

-> No

GO to Pinpoint Test G239843t59.

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G239843t59 : CHECK THE IGNITION SUPPLY TO THE VACM

1. Turn the ignition switch to the ON position. 2. Measure the voltage between TL68, pin 06 (WR) and

GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the phone module and battery. This circuit includes the primary junction

box (fuse 32) and the ignition switch. For additional information, refer to the wiring diagrams. TEST

the system for normal operation.

-> No

GO to Pinpoint Test G239843t60.

G239843t60 : CHECK THE GROUND TO THE VACM

1. Measure the resistance between TL68, pin 11 (BK) and GROUND.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. TEST the

system for normal operation.

-> No

CHECK for DTCs indicating a wake-up circuit or optical ring fault. REFER to the DTC index.

PINPOINT TEST G239843p10 : CHECK
THE SUPPLIES AND GROUNDS TO THE
REAR ENTERTAINMENT CONTROL
PANEL

G239843t61 : CHECK THE PERMANENT SUPPLY TO THE REAR
ENTERTAINMENT CONTROL PANEL

1. Disconnect the rear entertainment control panel electrical connector, TL20. 2. Measure the

voltage between TL20, pin 08 (RW) and GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the rear entertainment control panel and battery. This circuit includes

the primary junction box (fuse 30). For additional information, refer to the wiring diagrams. TEST the

system for normal operation.

-> No

GO to Pinpoint Test G239843t62.

G239843t62 : CHECK THE GROUND TO THE REAR ENTERTAINMENT
CONTROL PANEL

1. Measure the resistance between TL20, pin 10 (B) and GROUND.

•

Is the resistance greater than 5 ohms?

-> Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. TEST the

system for normal operation.

-> No

CHECK for DTCs indicating a wake-up circuit or optical ring fault. REFER to the DTC index.

PINPOINT TEST G239843p11 : CHECK
THE SUPPLIES AND GROUNDS TO THE
NAVIGATION SYSTEM MODULE

G239843t63 : CHECK THE PERMANENT SUPPLY TO THE NSM

1. Disconnect the NSM electrical connector, TL02. 2. Measure the voltage between TL02, pin 01 (R)

and GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the NSM and battery. This circuit includes the primary junction box (fuse

51). For additional information, refer to the wiring diagrams. TEST the system for normal operation.

-> No

GO to Pinpoint Test G239843t64.

G239843t64 : CHECK THE ACCESSORY SUPPLY TO THE NSM

1. Turn the ignition switch to the ACC position. 2. Measure the voltage between TL02, pin 1 (R) and

GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between the phone module and battery. This circuit includes the primary junction

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