C0696

DTC C0696

Diagnostic Instructions

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



DTC Descriptors
DTC C0696 00
- Position Sensor Overcurrent 5 Volt Supply




Diagnostic Fault Information






Circuit Description

With the ignition switch in the ON position the current draw of both air suspension sensors and the air suspension pressure sensor is verified by the air sensor module to be within a calibrated range. If the current draw is out of range a DTC will set. The ASCM raises and lowers the vehicle in order to keep the vehicle level.


Conditions for Running the DTC

Ignition is ON.


Conditions for Setting the DTC

The air suspension module detects that the supplied 5 volt reference voltage circuit for both suspension position sensors falls below 3 mA or exceeds 40 mA.


Action Taken When the DTC Sets

* The air suspension system will be inoperative.
* The SERVICE SUSPENSION SYSTEM message will be displayed.



Conditions for Clearing the MIL/DTC

* When the fault is no longer present, DTC C0696 will change from a current DTC to a history DTC on the next ignition cycle.
* DTC C0696 will be cleared from history after 50 ignition cycles.



Reference Information
Schematic Reference

Air Suspension Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Component Connector End Views)
Description and Operation

Air Suspension Description and Operation (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

Programming and Relearning (Programming and Relearning)for Scan Tool Information


Circuit/System Verification

Check the scan tool Height Sensor Current, the specified value for the air suspension module should be between 3-40 mA.


Circuit/System Testing

1. Ignition OFF, remove the HVAC ECAS 10 A Fuse in the underhood fuse block. Test for less than 2.0 ohms of resistance between suspension position sensor low reference terminal 3(LR) and terminal 1(RR) at the harness connector and ground.

• If greater than the specified range, test the low reference circuit for an open or high resistance. If all circuits test normal, replace the air suspension control module.

2. Ignition ON, verify that 3-40 mA exists between the sensor 5 volt reference circuit terminal 1(LR) and terminal 3(RR) of the harness connectors and ground. With a scan tool observe the Height Sensor Current parameter.

• If less that the specified range, test the 5 volt reference circuit for open/high resistance or a short to ground. If the circuit tests normal, replace the air suspension control module.


• If greater that the specified range, test the 5 volt reference circuit for a short to voltage. If the circuit tests normal, replace the air suspension control module.

3. Ignition OFF, disconnect the LR and RR air suspension sensors and the air suspension pressure sensor. Ignition ON, observe the scan tool Height Sensor current parameter to be 40mA.

• If greater than the specified value, test the air suspension sensor and the air suspension pressure sensor 5 volt reference circuit for a short to ground. If the circuits test normal, test or replace the air suspension module.

4. Ignition ON, with a scan tool observe the Height Sensor Current parameter at 40 mA while reconnecting the air suspension sensors one at a time.

• If greater than the specified value appears anytime while connecting a specific sensor or module, test or replace the currently connected air suspension sensor or pressure sensor.


• If less than the specified range, test or replace the air suspension module.




Repair Instructions

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

* Air Spring Leveling Sensor Replacement (Air Spring Leveling Sensor Replacement)
* Suspension Position Calibration (Suspension Position Calibration)
* Programming and Relearning (Programming and Relearning)for Air Suspension Control Module replacement, setup and programming