Electronic Suspension Control

DTC C0895

DTC Descriptor

DTC C0895: Device Voltage.

Diagnostic Fault Information

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Circuit/System Description

Voltage is supplied to the electronic suspension control (ESC) module in the battery positive voltage circuit and the ignition voltage circuit. The ESC module monitors the supplied voltage to determine if it is within a valid operating range.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The DTC is set when the battery voltage is outside the normal range of 9-15.5 volts.

Action Taken When the DTC Sets

The ESC module disables all ESC functionality.

Conditions for Clearing the DTC

- A current DTC will clear when the ESC module no longer sees battery voltage outside the normal range of 9-15.5 volts.
- A history DTC will clear if the fault does not return after 50 consecutive ignition cycles.

Circuit/System Verification

Ignition ON, observe the scan tool ESC Battery Voltage Signal parameter. The reading should be between 9-15.5 volts.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the ESC.
2. Test for less than 1 ohm of resistance between the ground circuit terminal 2 and ground.
-> If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
-> If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, test or replace the ESC.