For 1990-2009 cars only
DTC Descriptor
DTC C0899: Device Voltage LowDiagnostic Fault Information
Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
Circuit/System Description
The electronic brake control module (EBCM) monitors the ignition voltage level available for system operation. A low voltage condition prevents the system from operating properly.
Conditions for Running the DTC
Ignition is ON.
Conditions for Setting the DTC
This fault will be set if the ignition voltage to EBCM is less than 10 volts for 200 msec.
Action Taken When the DTC Sets
Traction Control System (ABS) indicator turns on for the duration of the ignition cycle.
Conditions for Clearing the DTC
| • | The condition for the DTC is no longer present. |
| • | The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles. |
Circuit/System Testing
- Measure the voltage at the battery terminals.
- With scan tool read the ignition voltage in the EBCM data list. Verify that battery terminal voltage and ignition voltage readings do not differ more than 1-volt.
- Go to Engine Cranks Slowly .
| ⇒ | If more than 1-volt test the ground circuit of the EBCM for high resistance. If the circuit test normal, test or replace the EBCM. |
