2010 Cadillac CTS Sedan AWD V6-3.6L Page 595

2010 Cadillac CTS Sedan AWD V6-3.6L Page 595

B3601 01

The RCDLR detects a voltage level on the control circuit greater than 8 volts when the key capture solenoid is commanded OFF.

B3601 02

The RCDLR detects a voltage level on the control circuit less than 2 volts when the key capture solenoid is commanded ON.

Action Taken When the DTC Sets

* The key capture solenoid output is disabled.

* SERVICE KEYLESS START SYSTEM is displayed on the DIC.

Conditions for Clearing the DTC

* A current DTC will clear when the condition for setting the DTC is no longer present.

* A history DTC will clear after 40 malfunction-free ignition cycles.

Reference Information

Schematic Reference

Column Lock Schematics (See: Diagrams/Electrical Diagrams/Steering/Steering Column/Column Lock Schematics)

Connector End View Reference

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

Description and Operation

Immobilizer Description and Operation (without Y41) (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Description and

Operation/Immobilizer Description and Operation (Without Y41))Immobilizer Description and Operation (with Y41) (See: Accessories and

Optional Equipment/Antitheft and Alarm Systems/Description and Operation/Immobilizer Description and Operation (With Y41))

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. With a valid keyless entry transmitter in the vehicle, observe the scan tool Key Capture Solenoid Command parameter while pressing and

releasing the ignition mode switch. The parameter should cycle between Active and Inactive.

2. Command the Key Capture Solenoid ON and OFF with the scan tool while attempting to cycle the igniting from OFF to ON. The ignition

knob should rotate when the solenoid is commanded ON and should not rotate when the solenoid is commanded OFF.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the key capture solenoid.

2. Test for less than 5 ohms between the ground circuit terminal 1 and ground.

瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.

3. Connect a test lamp between the control circuit terminal 2 and the ground circuit terminal 1.

4. Command the Key Capture Solenoid ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the

commanded states.

瀚慖f the test lamp is always ON, test the control circuit for short to voltage. If the circuit tests normal, replace the RCDLR.

瀚慖f the test lamp is always OFF, test the control circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the

RCDLR.

5. If all circuits tests normal, test or replace the key capture solenoid.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.