Monday, September 14, 2020

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1685

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1685



* Ignition voltage is between 11-18 volts.



* Engine Speed is 1000 RPM or greater.



* TP is 8 percent or greater.



* Engine torque is 75 Nm (55 lb ft) or greater.



* Vehicle speed is 10 km/h (6 mph) or greater.



Conditions for Setting the DTC



P0850 or P0851



The ECM detects the Park/Neutral switch signal equals 0 volts, Low, when the IMS reports a Drive range.



P0852



The ECM detects the Park/Neutral switch signal equals 12 volts, High, when the IMS reports a Park/Neutral range.



Action Taken When the DTC Sets



* DTCs P0850, P0851, and P0852 are Type C DTCs.



* The ECM uses IMS Range for engine start-up.



Conditions for Clearing the DTC



DTCs P0850, P0851, and P0852 are Type C DTCs.



Reference Information



Schematic Reference



* Automatic Transmission Controls Schematics (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Diagrams)



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



Connector End View Reference



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



* Inline Harness Connector End Views (See: Power and Ground Distribution/Multiple Junction Connector/Diagrams)



Description and Operation



* Transmission General Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and



Operation/Transmission General Description)



* Transmission Component and System Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and



Operation/Transmission Component and System Description)



* Electronic Component Description (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and



Operation/Electronic Component Description)



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)



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



Special Tools



DT-47825-10 - Jumper Harness



For equivalent regional tools, refer to Special Tools (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Tools and Equipment).



Circuit/System Verification



1. If there are any other transmission DTCs set, diagnose those DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle (See:

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