C0899
DTC C0899
Circuit Description
The power steering control module (PSCM) has a discrete battery positive voltage supply circuit. The PSCM monitors the voltage level on this circuit to ensure the electric power steering (EPS) system has adequate voltage levels to perform the system functions.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0899 Device Voltage Low
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
EPS system voltage is less than 8 volts
Action Taken When the DTC Sets
* DTC C0899 is stored in memory.
* The instrument panel cluster (IPC) message center displays the PWR STR warning message.
* No steering assist is provided.
Conditions for Clearing the DTC
* A current DTC will clear when EPS system voltage is greater than 8.65 volts.
* A history DTC will clear after 100 consecutive ignition cycles with the EPS system voltage greater than 8.65 volts.
Diagnostic Aids
The scan tool can be used to view the number of times a low battery incident has occurred. If an intermittent malfunction exists, Refer to Testing for Intermittent Conditions and Poor Connections for further diagnosis. Component Tests and General Diagnostics
Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Tests if the malfunction exists in the vehicles charging system.
3. Tests if the malfunction is in the EPS system.
