Pinpoint Test G239843P9

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). 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. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G239843t59.

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. 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. TEST the system for normal operation.

-> NO
CHECK for DTCs indicating a wake-up circuit or optical ring fault. REFER to the DTC index.