2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 624
DTC B3120 05
- Keyless Entry Antenna 2 High Voltage/Open
Diagnostic Fault Information
Circuit/System Description
The passenger front door handle antenna is located in the passenger front door handle assembly and is used to establish low frequency
communications with the keyless entry transmitter. As a vehicle with locked doors is approached with a keyless entry transmitter and the exterior
door handle is pulled, the keyless entry control module communicates with the passenger front door handle keyless entry antenna.
Conditions for Running the DTC
* The touch pad in the passenger front door handle is touched within 15 minutes of the last change of door ajar status for any door.
* The front or rear door handle on the passenger side is pulled.
Conditions for Setting the DTC
B3120 02
The keyless entry control module detects a short to ground on the passenger front door keyless entry antenna signal circuit.
B3120 05
The keyless entry control module detects a short to B+ or an open on the passenger front door keyless entry antenna signal circuit.
Action Taken When the DTC Sets
Doors will not unlock when front passenger handle is pulled. Doors will not lock with passenger touch pad.
Conditions for Clearing the DTC
* A current DTC will clear when the conditions for setting the DTC are no longer present.
* A history DTC will clear after 40 malfunction-free ignition cycles.
Reference Information
Schematic Reference
Remote Function Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Keyless Entry
Transmitter/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Keyless Entry System Description and Operation (without ATH) (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless
Entry/Description and Operation/Keyless Entry System (without ATH))Keyless Entry System Description and Operation (with ATH) (See:
Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System (with ATH))
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information
