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 1 Voltage Low

Conditions for Running the DTC
The ignition is ON.Conditions for Setting the DTC
The 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) displays the SERVICE VEHICLE SOON warning indicator.
^ 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.
^ Using a scan tool

Test Description





The numbers below refer to the step numbers on the diagnostic table.
2. This step tests if the malfunction exists in the vehicles charging system.
3. This step tests if the malfunction is in the EPS system.