Medium and Heavy Trucks
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Answered in 25 minutes by:
3/13/2023
VerifiedHello my name is***** will assist you with your question. What year model is the APU?Yellow = Check Alarm: This indicates one or more of the system Check Alarms are active. This level of alarm serves as notice to take corrective action at the earliest convenience before a problem becomes severe. The system will continue to operate but some features and functions may be inhibited or disabled.These indicators are usually “check unit at your earliest convenience “ and not an emergency indicator.
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