XJ (X308) V8-4.0L SC (2003)
: CHECK THE SUPPLIES AND GROUNDS TO THE CELLULAR PHONE MODULE
G239843t53 : CHECK THE PERMANENT SUPPLY TO THE PHONE MODULE
1. Disconnect the phone module electrical connector, TL07.
2. Measure the voltage between TL07, pins 12 and 13 (RW) 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 30). TEST the system for normal
operation.
-> No
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. TEST the
system for normal operation.
-> No
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. TEST the
system for normal operation.
-> No
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. TEST the system for normal operation.
-> No
CHECK for DTCs indicating a wake-up circuit or optical ring fault. REFER to the DTC index.
Check the Supplies and Grounds to the Driver Door Module
: CHECK THE SUPPLIES AND GROUNDS TO THE DRIVER DOOR CONTROL MODULE (DDCM)
G239843t82 : CHECK THE PERMANENT SUPPLY TO THE DDCM
1. Disconnect the DDCM electrical connector, DD13.
2. Measure the voltage between DD13, pin 11 (NW) and GROUND.
-
Is the voltage less than 10 volts?
-> Yes