The Tuner&Amplifier converts optical communication signal to electrical communication signal. The temperature sensor of Tuner&Amplifier detects the temperature rising to prevent that be abnormal status.
This code is set when a temperature sensor of Tuner &Amplifier detect that the temperature is over 85?, At that time Tuner&Amplifier can be abnormal status. If the temperature is around 85?,the fan is running to make the temperature down. After cooling, Tuner&Amplifier become to be normal status under 75?.
Item
Detecting Condition
Possible Cause
DTC Strategy
Siganl monitoring
Poor air circulation around the Tuner & Amplifier
Tuner & Amplifier
Enable Conditions
IG ON
Threshold value
Temperature > 85?
Detecting time
Immediately
FIG.1) Start of wake up line diagnosis test
FIG.2) Result of wake up line diagnosis test