2010 Cadillac CTS Sedan AWD V6-3.6L Page 597
Description and Operation
Luggage Compartment Description and Operation (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Description and Operation)
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
Command the trunk release by using the exterior rear compartment lid release switch. The rear compartment lid release actuator should release the
trunk lid.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the exterior rear compartment lid release switch.
2. Test for less than 1 ohm between the ground circuit terminal C and ground.
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Connect the harness connector at the exterior rear compartment lid release switch and disconnect the X1 harness connector at the RCDLR.
4. Connect a test lamp between the signal circuit terminal P and B+.
5. Ignition ON, command the trunk release ON and OFF by pressing and releasing the exterior rear compartment lid release switch. The test
lamp should turn ON and OFF when changing between the commanded states.
瀚慖f the test lamp continuously illuminates, test the signal circuit for a short to ground or and open/high resistance. If the circuit tests
normal, replace the exterior rear compartment lid release switch.
瀚慖f the test lamp does not illuminate, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal,
replace the exterior rear compartment lid release switch.
6. If all circuits test normal, replace the RCDLR.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for RCDLR replacement, setup, and programming
B3622
DTC B3622
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B3622 07
- Steering Wheel Controls Signal Circuit
Diagnostic Fault Information
