2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1406
P0522
* The ECM detects a short to ground in the engine oil pressure signal circuit.
* The above condition is present for greater than 10 seconds.
P0523
* The ECM detects a short to voltage or an open circuit in the engine oil pressure signal circuit.
* The above condition is present for greater than 10 seconds.
Action Taken When the DTC Sets
The instrument cluster illuminates the service vehicle soon indicator.
Conditions for Clearing the DTC
The DTC becomes history when the conditions for setting the DTC are no longer present.
Reference Information
Schematic Reference
Instrument Cluster Schematics (See: Diagrams/Electrical Diagrams/Instrument Panel, Gauges and Warning Indicators/System Diagram/Instrument
Cluster Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
* Instrument Cluster Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Description and
Operation/Instrument Cluster)
* Indicator/Warning Message Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Description and
Operation/Indicator/Warning Message)
* Driver Information Center (DIC) Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Description and
Operation/Driver Information Center (DIC))
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)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Engine running, observe the scan tool Engine Oil Pressure Sensor parameter. The reading should be between 0.3-4.8 V.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the B37B Engine Oil Pressure Sensor.
2. Ignition OFF, test for less than 10 ohm between the low reference circuit terminal 1 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K20
Engine Control Module.
3. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 2 and ground.
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the K20 Engine Control Module.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K20 Engine
