C0895

DTC C0895

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.



DTC Descriptor
DTC C0895
- Device Voltage




Circuit/System Description

Voltage is supplied to the electronic suspension control (ESC) module in the battery positive 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 is ON.


Conditions for Setting the DTC

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


Action Taken When the DTC Sets

Disable All Functionality


Conditions for Clearing the DTC

The DTC is saved as history when the ESC module no longer sees system voltage outside the normal range of 9-15.5 volts. The DTC will clear if the fault does not return after 50 consecutive ignition cycles.


Diagnostic Aids

* A low voltage DTC in multiple modules indicates a concern in the charging system.
* DTC C0895 may set when the vehicle is placed on a battery charger, on fast charge, for a long period of time. It may also be set by an intermittent charging system malfunction



Reference Information
Schematic Reference

Electronic Suspension Control Schematics (Electronic Suspension Control)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Electronic Suspension Control Description and Operation (Electronic Suspension Control Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information.


Circuit/System Verification

1. Ignition ON, verify DTC C0895 is set as current.
2. Engine running, measure and record the voltage at the battery terminals.
3. Verify that the battery voltage is 12.6-15.5 volts.

• If the battery voltage is not within the specified range, refer to Charging System Test (Charging System Test)

4. Engine running, observe the scan tool ESC Battery Positive Voltage parameter.
5. Verify that the scan tool displays a value that is within 2 volts of the battery terminal voltage.



Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the ESC module.
2. Ignition OFF, test for less than 3 ohms of between the ground circuit terminal 47 and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify a test lamp illuminates between the Battery Positive Voltage circuit terminal 32 and ground.

• If the test lamp did not illuminate, test the Battery Positive Voltage circuit for an open/high resistance.

4. If all circuits test normal, replace the ESC module.



Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.


Control Module References (Programming and Relearning) for ESC module replacement, setup and programming