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.
This diagnostic procedure supports the following DTC:
DTC C0896 Device Voltage Range/Performance
The ignition is ON.
EPS system battery voltage is 9-11 volts.
• | DTC C0896 is stored in memory. |
• | The instrument panel cluster (IPC) message center displays the PWR STR warning message. |
• | Steering assist is reduced. |
• | A current DTC will clear when EPS system voltage is greater than 11 volts. |
• | A history DTC will clear after 100 consecutive ignition cycles with EPS system voltage greater than 11 volts. |
• | Using a scan tool |
The scan tool can be used to view the number of times a low battery voltage incident has occurred. If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems for further diagnosis.
The number below refers to the step number on the diagnostic table.
Tests if the malfunction exists in the vehicles charging system.
Tests if the malfunction is intermittent.
Step | Action | Yes | No |
---|---|---|---|
Connector End Views Reference: Power Steering Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
Does the scan tool display greater than 11 volts? | Go to Step 3 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | |
With a scan tool, observe the Battery Voltage parameter in the electric power steering (EPS) Data List 1. Does the scan tool display greater than 11 volts? | Go to Diagnostic Aids | Go to Step 4 | |
4 | Test the battery positive voltage circuit of the power steering control module (PSCM) for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 5 |
5 | Test the ground circuit of the PSCM for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 6 |
6 | Inspect for poor connections at the harness connector of the underhood fuse block stud terminal. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 7 |
7 | Inspect for poor connections at the harness connector of the PSCM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 8 |
8 | Inspect for poor connections at the ground terminal G109 . Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 9 |
9 | Replace the EPS assembly. Refer to Steering Column Replacement in Steering Wheel and Column. Did you complete the replacement? | Go to Step 10 | -- |
10 |
Does the DTC reset? | Go to Step 2 | System OK |