2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2508

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2508

When the brake pedal is applied, the BCM sends a serial data message to the ECM indicating that the brake pedal has been applied. The ECM

senses a high voltage signal on the brake switch signal circuit when the stop lamp switch is closed.

Conditions for Running the DTC

* The engine is running.

* Battery voltage is greater than 11.5 volts.

Conditions for Setting the DTC

P0572

The ECM detects a low voltage signal on the TCC brake signal circuit for more than 2 seconds when the serial data message from the BCM

indicates the brakes are applied. The ECM sets the DTC when the condition has been detected 8 out of 10 times.

P0573

The ECM detects a high voltage signal on the TCC brake signal circuit for more than 2 seconds when the serial data message from the BCM

indicates the brakes are released. The ECM sets the DTC when the condition has been detected 8 out of 10 times.

Actions Taken When the DTC Sets

* The cruise control system becomes disabled.

* The malfunction indicator lamp (MIL) will not illuminate.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.

* A history DTC will clear after 40 malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

* Cruise Control Schematics (See: Cruise Control/Diagrams/Electrical Diagrams)

* Exterior Lights Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Exterior Lights Schematics)

Connector End View Reference

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

Description and Operation

Cruise Control Description and Operation (See: Cruise 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. Ignition OFF, disconnect the harness connector at the stop lamp switch.

2. Ignition ON, test for B+ between the B+ circuit terminal B and ground.

瀚慖f less than the specified value, test the B+ circuit for a short to ground or an open/high resistance.

3. Verify the BPP Circuit Signal data parameter displays released.

瀚慖f not the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.

4. Connect a 3A fused jumper between the B+ circuit terminal B and the signal circuit terminal A. Verify the BPP Circuit Signal data parameter