2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2876

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2876

Typical Scan Tool Data

Circuit/System Description

The engine control module (ECM) supplies 5 V to the BARO sensor on a 5 V reference circuit, and provides a ground on a low reference circuit.

The BARO sensor provides a voltage signal to the ECM on a signal circuit relative to the atmospheric pressure changes. Changes in BARO due to

weather are relatively small, while changes due to altitude are significant. Pressure can range from 56 kPa at an altitude of 4,267 meters (14,000

feet) to 105 kPa at or below sea level. The BARO sensor has a range of 0-128 kPa.

Conditions for Running the DTC

* The engine has been running for greater than 30 s.

* DTCs P2228 and P2229 run continuously when the above condition is met.

Conditions for Setting the DTC

P2228

The ECM detects the BARO voltage is less than 2 V for greater than 1 s.

P2229

The ECM detects the BARO voltage is greater than 4.5 V for greater than 1 s.

Action Taken When the DTC Sets

DTCs P2228 and P2229 are Type B DTCs.

Conditions for Clearing the DTC

DTCs P2228 and P2229 are Type B DTCs.

Reference Information

Schematic Reference

Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

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

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)