2010 Cadillac CTS Sedan AWD V6-3.6L Page 1392
sensor pulse.
* The ECM detects that the engine has started, but did not receive a camshaft position sensor pulse during the first engine revolution.
* The ECM detects that the engine is running, but does not receive a camshaft position sensor pulse for 800 of 1,000 engine cycles.
Action Taken When the DTC Sets
* DTCs P0340, P0345, P0365, and P0390 are Type B DTCs.
* The camshaft position actuator is commanded to the Home or Parked position.
Conditions for Clearing the MIL/DTC
DTCs P0340, P0345, P0365, and P0390 are Type B DTCs.
Diagnostic Aids
With a DTC set, the engine may crank for an extended period of time at start-up.
Reference Information
Schematic Reference
Engine Controls Schematics (LLT) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics
(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Electronic Ignition System Description (See: Powertrain Management/Computers and Control Systems/Description and Operation/Electronic
Ignition System 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
Engine Control Module Scan Tool Information (V6) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan
Tool Testing and Procedures)Engine Control Module Scan Tool Information (V8) (See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Scan Tool Testing and Procedures)Engine Control Module Scan Tool Information (LF1) (See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures) for scan tool information
Circuit/System Verification
1. With the ignition OFF, inspect the engine wiring harnesses carrying the B23 camshaft position sensor circuits for the following conditions:
* Close routing of aftermarket electrical equipment
* Close to solenoids, motors, and relays
瀚慍orrect any wire harness routing or component placement conditions if it is determined to be a possible source of electrical interference.
2. Observe the following scan tool parameters are all incrementing:
* Exhaust Camshaft Position Active Counter Bank 1
* Intake Camshaft Position Active Counter Bank 1
* Exhaust Camshaft Position Active Counter Bank 2
* Intake Camshaft Position Active Counter Bank 2
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, all vehicle systems OFF, this may take 2 minutes, disconnect the affected B23 camshaft position sensor connector.
