The electrical power management is used to monitor and control the charging system and alert the driver of possible problems within the charging system. The electrical power management system makes the most efficient use of the generator output, improves the battery state-of-charge, extends battery life, and manages system electrical loads.
The load shed operation is a means of reducing electrical loads during a low voltage or low battery state-of-charge condition.
The idle boost operation is a means of improving generator performance during a low voltage or low battery state-of-charge condition.
Each electrical power management function, either idle boost or load shed, is discrete. No two functions are active at the same time. Idle boost is activated in incremental steps, idle boost 1 must be active before idle boost 2 can be active. The criteria used by the body control module (BCM) to regulate electrical power management are outlined below:
Function |
Battery Temperature Calculation |
Battery Voltage Calculation |
Amp-Hour Calculation |
Action Taken |
---|---|---|---|---|
Idle Boost 1 Start |
Less Than −15°C (5°F) |
Less Than 13 V |
— |
First level Idle boost requested |
Idle Boost 1 Start |
— |
— |
Battery has a net loss greater than 0.6 Ah |
First level Idle boost requested |
Idle Boost 1 Start |
— |
Less Than 10.9 V |
— |
First level Idle boost requested |
Idle Boost 1 End |
Greater Than −15°C (5°F) |
Greater Than −12 V |
Battery has a net loss less than 0.2 Ah |
First level Idle boost request cancelled |
Load Shed 1 Start |
— |
— |
Battery has a net loss of 4 Ah |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 20% of their cycle |
Load Shed 1 Start |
— |
Less Than 10.9 V |
— |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 20% of their cycle |
Load Shed 1 End |
— |
Greater Than 12 V |
Battery has a net loss of less than 2 Ah |
Clear Load Shed 1 |
Idle Boost 2 Start |
— |
— |
Battery has a net loss greater than 1.6 Ah |
Second level Idle boost requested |
Idle Boost 2 Start |
— |
Less Than 10.9 V |
— |
Second level Idle boost requested |
Idle Boost 2 End |
— |
Greater Than 12 V |
Battery has a net loss less than 0.8 Ah |
Second level Idle boost request cancelled |
Idle Boost 3 Start |
— |
— |
Battery has a net loss of 10 Ah |
Third level Idle boost requested |
Idle Boost 3 Start |
— |
Less Than 10.9 V |
— |
Third level Idle boost requested |
Idle Boost 3 End |
— |
Greater Than 12 V |
Battery has a net loss of less than 6.0 Ah |
Third level Idle boost request cancelled |
Load Shed 2 Start |
— |
Less Than 10 V |
Battery has a net loss greater than 12 Ah |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 50% of their cycle. The BATTERY SAVER ACTIVE message will be displayed on the DIC |
Load Shed 2 Start |
— |
Less Than 10.9 V |
— |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 50% of their cycle. The BATTERY SAVER ACTIVE message will be displayed on the DIC |
Load Shed 2 End |
— |
Greater Than 12.6 V |
Battery has a net loss of less than 10.5 Ah |
Clear Load Shed 2 |
Load Shed 3 Start |
— |
Less Than 11.9 V |
Battery has a net loss greater than 20 Ah |
Rear Defrost, Heated Mirrors, Heated Seats cycled OFF for 100% of their cycle. The BATTERY SAVER ACTIVE message will be displayed on the DIC |
Load Shed 3 End |
— |
Greater Than 12.6 V |
Battery has a net loss of less than 15 Ah |
Clear Load Shed 3 |
Tire Sealant and Compressor Kit
Warning
Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine
exhaust may enter the vehicle. Engine exhaust contains carbon monoxide (CO) which
cannot be seen or smelled. It can cause unconsciousness and even death. Never run
the engine in an enclosed area that has n ...
Instrument Panel Outer Air Outlet Replacement - Right Side
Instrument Panel Outer Air Outlet Replacement - Right Side
Callout
Component Name
Preliminary Procedure
Remove the right instrument panel upper trim panel. Refer to Instrument
Panel Upper Trim Panel Replacement - Right Side ...
Heated Oxygen and Oxygen Sensor Caution
Caution: Do not remove the pigtail from either the heated oxygen sensor
(HO2S) or the oxygen sensor (O2S). Removing the pigtail or the connector will
affect sensor operation.
Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line
electrical connector and the louver ...