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.
The EPS system battery voltage is 9-11 volts.
• | DTC C0896 is stored in memory. |
• | The instrument panel cluster (IPC) displays the SERVICE VEHICLE SOON warning indicator. |
• | 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 numbers below refer to the step numbers on the diagnostic table.
This step tests if the malfunction exists in the vehicles charging system.
This step tests if the malfunction is intermittent.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Power Steering Schematics Connector End Views Reference: Power Steering Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
Does the scan tool display greater than 11 volts? | Go to Step 3 | ||
With a scan tool, observe the Battery Voltage parameter in the electric power steering (EPS) Data List. Does the scan tool display greater than 11 volts? | Go to Testing for Intermittent Conditions and Poor Connections | 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 Wiring Repairs . 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 . 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 Connector Repairs . 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 Connector Repairs . 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 Connector Repairs . 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 . Did you complete the replacement? | Go to Step 10 | -- |
10 |
Does the DTC reset? | Go to Step 2 | System OK |