2010 Cadillac CTS Sedan AWD V6-3.0L Page 1474

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1474

* The above condition is present for greater than 10 seconds.

Action Taken When the DTC Sets

* The ECM records the operating conditions at the time the diagnostics test fails. The ECM displays this information in the Failure Records on

the scan tool.

* The EOP gauge defaults to zero.

* The IPC illuminates the EOP indicator.

Conditions for Clearing the DTC

* The DTC becomes history when the conditions for setting the DTC are no longer present.

* The history DTC clears after 40 malfunction-free warm-up cycles.

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)

Description and Operation

* Indicator/Warning Message Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Description and

Operation/Indicator/Warning Message)

* Instrument Cluster Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Description and

Operation/Instrument Cluster)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)

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

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

Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

1. Engine running, observe the scan tool Engine Oil Pressure Sensor parameter. The reading should be between 0.2-4.8 volts.

2. Verify the engine oil pressure, refer to:

* Oil Pressure Diagnosis and Testing (See: Engine, Cooling and Exhaust/Engine/Testing and Inspection/Component Tests and General

Diagnostics/Oil Pressure Diagnosis and Testing)for the 3.6L engine

* Oil Pressure Diagnosis and Testing (See: Engine, Cooling and Exhaust/Engine/Testing and Inspection/Component Tests and General

Diagnostics/Oil Pressure Diagnosis and Testing)for the 4.8L, 5.3L, 6.0L, 6.2L or 7.0L engine

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the engine oil pressure (EOP) sensor.

2. Ignition OFF, test for less than 1.0 ohm between the low reference circuit terminal C and ground.

瀚慖f greater than the specified range, test the circuit for an open/high resistance. If the circuit tests normal, replace the ECM.

3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal B and ground.

瀚慖f less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,

replace the ECM.

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

4. Verify the scan tool Engine Oil Pressure Sensor parameter is less than 0.2 volt.

瀚慖f greater than the specified range, test the signal circuit terminal A for a short to voltage. If the circuit tests normal, replace the ECM.

5. Install a 3A fused jumper wire between the signal circuit terminal A and the 5-volt reference circuit terminal B. Verify the scan tool Engine