2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1000

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1000

Battery voltage is between 9-16 volts.

Conditions for Setting the DTC

The ESCM detects that the supplied 5 volt reference voltage circuit for the pressure sensor falls below 4.75 volts or exceeds 5.25 volts.

The ESCM detects that the signal voltage circuit for the pressure sensor falls below.5 volt or exceeds 4.75 volts.

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 C0711 will change from a current DTC to a history DTC on the next ignition cycle.

* DTC C0711 will be cleared from history after 50 ignition cycles.

Reference Information

Schematic Reference

Automatic Level Control Schematics (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Diagrams/Electrical Diagrams/Automatic Level Control)

Connector End View Reference

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

Description and Operation

Automatic Level Control Description and Operation (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Description and Operation/Automatic Level Control Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for Scan Tool Information

Circuit/System Testing

1. Verify that there are no air leaks in the system.

瀚慖f a leak is found, repair or replace the leaking component as necessary.

2. Ignition OFF, remove the ESC/ALC EXH Fuse in the underhood fuse block.

3. Disconnect the air pressure sensor and test for less than 2.0 ohms between the low reference terminal F at the harness connector and ground.

瀚慖f greater than specified, test the low reference circuit for open/high resistance. If the circuit tests normal, replace the electronic

suspension control module.

4. Reinstall the ESC/ALC EXH Fuse in the underhood fuse block.

5. Ignition ON, verify that 4.75-5.25 volts exists between the 5 volt reference circuit terminal H of the harness connector and ground.

瀚慖f 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 electronic suspension control module.

瀚慖f greater that the specified range, test the 5 volt reference circuit for a short to voltage. If the circuit tests normal, replace the electronic

suspension control module.

6. Ignition OFF, disconnect the electronic suspension control module connector.

7. Test the pressure sensor signal circuit for a short to ground, open/high resistance, or short to voltage.