C0896

DTC C0896





Circuit Description
The electronic brake control module (EBCM) is required to operate within a specified range of voltage to function properly. During antilock brake system (ABS) and traction control system (TCS) operation, there are current requirements that will cause the voltage to drop. Because of this, voltage is monitored out of ABS/TCS control to indicate a good charging system condition, and also during ABS/TCS control when voltage may drop significantly. The EBCM also monitors for high voltage conditions which could damage the EBCM.

DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0896 System High/Low Voltage

Conditions for Running the DTC
The vehicle speed is above 6.4 km/h (4 mph).

Conditions for Setting the DTC
The battery voltage drops below 9.4 volts or exceeds 17.4 volts.

Action Taken When the DTC Sets
^ The ABS telltale will be turned ON.
^ The ABS control module will disable the ABS, the TCS, and the dynamic rear proportion (DRP).

Conditions for Clearing the DTC
The conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.

Diagnostic Aids





Important: If the battery voltage returns to normal levels 9.4-17.4 volts within the same ignition cycle, the ABS control module will enable ABS/TCS/DRP and will turn the ABS telltale OFF.

Use the scan tool to observe the battery voltage display.