2010 Cadillac CTS Sedan AWD V6-3.6L Page 594
2. Ignition OFF, disconnect the harness connector at the I/P Dimmer switch.
3. Ignition OFF, verify a test lamp illuminates between B+ and the ground circuit terminal 10.
瀚慖f the test lamp does not illuminate, test the ground circuit for an open/high resistance.
4. Ignition ON, test for B+ between the voltage reference circuit terminal 5 and ground.
瀚慖f less than the specified value, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit test normal,
replace the BCM.
5. Verify the scan tool Dimming Control Signal parameter is less than 0.2 volts.
瀚慖f greater than the specified range, test the signal circuit terminal 9 for a short to voltage. If the circuit tests normal, replace the BCM.
6. Install a 3 A fused jumper wire between the signal circuit terminal 9 and the voltage reference circuit terminal 5. Verify the scan tool
Dimming Control Signal parameter is greater than 2.5 volts.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the BCM.
7. If all circuits test normal, replace the I/P dimmer switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Instrument Panel Lamp Dimmer Switch Replacement (See: Instrument Panel, Gauges and Warning Indicators/Dimmer Switch/Service and
Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming
B3601
DTC B3601
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 Descriptors
DTC B3601 01
- Ignition Switch Key Capture Solenoid Circuit Short to Battery
DTC B3601 02
- Ignition Switch Key Capture Solenoid Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The remote control door lock receiver (RCDLR) applies voltage to the key capture solenoid under specific conditions to allow the ignition to be
turned ON or OFF.
Conditions for Running the DTC
This DTC runs in all ignition modes
Conditions for Setting the DTC
