The temperature sensor of Head unit detect the temperature rising to prevent abnormal status of Head Unit.
This code is set when a temperature sensor of Head unit 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 is normal status under 75?.
Item
Detecting Condition
Possible Cause
DTC Strategy
Self diagnosis
Poor air circulation around Head unit
Head unit
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