2010 Cadillac CTS Sedan AWD V6-3.6L Page 771

2010 Cadillac CTS Sedan AWD V6-3.6L Page 771

Control Module References (See: Testing and Inspection/Programming and Relearning) for ESC module replacement, setup and programming

C0896

DTC C0896

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C0896 03

- Device Voltage Range Voltage Below Threshold

DTC P0896 07

- Device Voltage Range Voltage Above Threshold

Diagnostic Fault Information

Circuit/System Description

This DTC is set up to detect a high or low voltage situation. This could indicate a vehicle issue in which all electrical components would be

affected. It could also be transfer case control module specific due to poor power or ground connections.

Conditions for Running the DTC

* The ignition is ON.

* System voltage is 7-18.5 volts.

Conditions for Setting the DTC

The voltage is above 16 volts or below 9 volts for 4 seconds.

Action Taken When the DTC Sets

* Shifting is disabled until the voltages change to be within the specifications.

* The SERVICE AWD will not be illuminated.

* If the voltage drops below 7 volts the transfer case shift control module will go off-line and a Service AWD indicator would then be present

because the transfer case shift control module would no longer be transmitting on the Serial Data Line.

Conditions for Clearing the DTC

* The transfer case shift control module clears the DTC if the conditions for setting the DTC are not currently present.

* A history DTC clears after 40 consecutive warm up cycles without a fault present.

* All DTCs can be cleared using a scan tool.

* Clearing DTCs will also clear failure records.

Diagnostic Aids

* Check failure records for further information on the conditions present when this DTC set.

* Check other modules for voltage related DTCs as this may indicate a system voltage issue.

Reference Information

Schematic Reference

Transfer Case Control Schematics (See: Transmission and Drivetrain/Transfer Case/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)