Typical Scan Tool Data

14V Power Module Feedback

Duty Cycle (+/- 2%)	14V Power Module Condition Observed	14V Power Module / System Function
100%	High Voltage Not Present 14V Power Module Feedback Circuit shorted to 12V B+	Disable
90%	Overtemperature	Disable
70%	High Voltage over/under voltage 12V Under-voltage Short Circuit detected	Disable
60%	Hot Temperature	Derated: 12V Output limited to <90% of desired
50%	Overtemperature	Derated: 12V Output limited to >90% of desired
30%	High Voltage undervoltage Unable to regulate voltage Overcurrent Low Temperature Protection	Derated: 12V Output < than desired by unknown amount
25%	Approaching Maximum Output Capability: 12V Load > than 95% with temperature normal	12V vehicle loads may shutdown
20%	Approaching Maximum Output Capability: 12V Load > than 90% with temperature normal	12V vehicle loads may shutdown
10%	All OK	Normal Operation
0%	14V Power Module Feedback Circuit Shorted to ground	Disabled