C0895

DTC C0895

Diagnostic Instructions

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

DTC Descriptor

DTC C0895 00
- Device Voltage - Electronic Suspension Control Module

Diagnostic Fault Information






Circuit/System Description

Voltage is supplied to the electronic suspension control (ESC) module by the battery positive (B+) voltage circuit. The ESC module monitors the supplied voltage to determine if it is within a valid operating range. Damage to components, and incorrect data may occur if the voltage is out of range. The ESC module disables all outputs, and sets DTC C0895 00, if high or low battery voltage is detected.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

Battery voltage is outside the normal range of 9.0-15.5 volts.

Action Taken When the DTC Sets

The ESC module disables all functionality.

Conditions for Clearing the DTC

* A current DTC will clear when the ESC module receives battery voltage in the normal range of 9-15.5 volts.
* A history DTC will clear if the condition does not return after 50 consecutive ignition cycles.

Diagnostic Aids

* A high or low voltage value in multiple modules indicates a concern in the charging system.
* Overcharging with a battery charger or jump starting can cause this DTC to set.

Circuit/System Verification

1. Measure and record the voltage at the battery terminals with the engine OFF, and again with the engine running. Verify that the battery voltage is 11-17 volts with the engine OFF and with the engine running.

• If the battery voltage is not within the specified range, go to Charging System Test. Charging System Test

2. Observe the scan tool Battery Voltage Signal parameter in the ESC data list. Verify that the scan tool displays 9.5-15.5 volts.

• If the scan tool parameter is not within the specified range, refer to Circuit/System Testing.

3. Refer to Diagnostic Aids.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector of the ESC module.
2. Verify that there is less than 1.0 ohm between the ground circuit terminal 47 and the negative battery terminal.

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

3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 32 of the ESC module 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, replace the ESC module.

Repair Instructions

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