Dodge Ram 2004 - Phone Switch Stuck; Voice Recognition Switch Stuck; Voice Recognition;Phone Switch Circuit Rationality; Voice Recognition;Phone Switch Circuit Short to Ground

Symptom List:
PHONE SWITCH STUCK
VOICE RECOGNITION SWITCH STUCK
VOICE RECOGNITION/PHONE SWITCH CIRCUIT RATIONALITY
VOICE RECOGNITION/PHONE SWITCH CIRCUIT SHORT TO
GROUND
VOICE RECOGNITION/PHONE SWITCH CIRCUIT SHORT TO
VOLTAGE
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be PHONE SWITCH STUCK.
When Monitored and Set Condition:
PHONE SWITCH STUCK
When Monitored: With the ignition on.
Set Condition: The Hands Free Module detects voltage between 2.8 volts and 3.3 volts on
the VR/Phone Switch Signal circuit for more than 30 seconds.
VOICE RECOGNITION SWITCH STUCK
When Monitored: With the ignition on.
Set Condition: The Hands Free Module detects voltage between 3.5 volts and 4.0 volts on
the VR/Phone Switch Signal circuit for more than 30 seconds.
VOICE RECOGNITION/PHONE SWITCH CIRCUIT RATIONALITY
When Monitored: With the ignition on.
Set Condition: The Hands Free Module detects an invalid voltage signal on the VR/Phone
Switch Signal circuit.
VOICE RECOGNITION/PHONE SWITCH CIRCUIT SHORT TO GROUND
When Monitored: With the ignition on.
Set Condition: The Hands Free Module detects voltage below 0.6 volt on the VR/Phone
Switch Signal circuit.
VOICE RECOGNITION/PHONE SWITCH CIRCUIT SHORT TO VOLTAGE
When Monitored: With the ignition on.
Set Condition: The Hands Free Module detects voltage above 4.7 volts on the VR/Phone
Switch Signal circuit.
POSSIBLE CAUSES
AUTOMATIC DAY/NIGHT MIRROR
509
TELECOMMUNICATION