For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provide an overview of each diagnostic category. |
DTC Descriptor
DTC C0896 00: Device Voltage Range PerformanceDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
B+ | -- | -- | -- | C0896 00 |
Ground | -- | -- | -- | C0896 00 |
Circuit/System 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 power steering system has adequate voltage levels to perform the system functions.
Conditions for Running the DTC
Ignition ON, Engine ON
Conditions for Setting the DTC
Power steering system voltage is 9-10 volts for at least one second.
Action Taken When the DTC Sets
| • | DTC C0896 00 is stored in memory. |
| • | Steering assist is slightly reduced. |
Conditions for Clearing the DTC
| • | A current DTC will clear when power steering system voltage is greater than 10 volts for more than one second. |
| • | A history DTC will clear after 100 consecutive ignition cycles with the power steering voltage greater than 10 volts. |
Diagnostic Aids
| • | Inspect the 80-amp EPS fuse of the underhood fuse block for an open. |
| • | Inspect for poor connections at the underhood fuse block stud ring terminal. |
| • | Inspect for poor connections at ground terminal G103 of the PSCM. |
| • | Inspect for poor connections at the PSCM. |
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Power Steering System Description and Operation
Electrical Information Reference
Scan Tool Reference
Diagnostic System Check - Vehicle for scan tool information
Circuit/System Testing
- Ignition OFF, disconnect the X1 harness connector at the PSCM.
- Test for less than 1Ω between the ground circuit terminal A and ground.
- Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal B and ground.
- If all circuits test normal, replace the PSCM.
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the PSCM. |
| ⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for PSCM replacement, setup, and programming |
