2010 Cadillac CTS Sedan AWD V6-3.6L Page 540
瀚慖f greater than the specified range, test the signal circuit for a short to ground.
9. Test for infinite resistance between the signal circuit terminal B10 and ground.
瀚慖f less than the specified value, test the signal circuit for a short to ground.
10. Test for less than 2 ohms of resistance between the signal circuit terminal B at the RBCM and the signal circuit terminal 3 at the inclination
sensor.
瀚慖f greater than the specified range, test the signal circuit for an open/high resistance.
11. If all circuits test normal, test or replace the inclination sensor. If the DTC resets, replace the XBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Theft Deterrent Vehicle Inclination Sensor Replacement (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Tow
Sensor/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM and XBCM replacement, setup, and
programming
B2961
DTC B2961
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 B2961 02
- Key In Ignition Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The remote control door lock receiver (RCDLR) monitors the key in ignition switch signal circuit as a means of initiating transmitter
authentication. When the ignition control knob is pressed, the key in ignition switch (part of the ignition switch assembly) is closed. This grounds
the key in ignition switch signal circuit and the RCDLR will being the transmitter authentication process.
If a fault exists on the key in ignition switch signal circuit or within the switch itself, transmitter authentication will not initiate when pressing the
ignition control knob. Instead, transmitter authentication will only occur when depressing the brake pedal.
Conditions for Running the DTC
Ignition OFF.
Conditions for Setting the DTC
The RCDLR detects the key in ignition circuit is active for greater than 3 minutes.
Action Taken When the DTC Sets
The key in ignition input is ignored.
