FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.
Home >> Buick >> 2013 >> Verano L4-2.0L Turbo >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> B Code Charts >> B3119

B3119




DTC B3119

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B3119 02
- Keyless Entry Antenna 1 Short to Ground

DTC B3119 05
- Keyless Entry Antenna 1 High Voltage/Open

Diagnostic Fault Information






Circuit/System Description

The driver door handle antenna is located in the driver 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 button is pressed, the Keyless Entry Control Module communicates with the driver door handle keyless entry antenna.

Conditions for Running the DTC

The exterior driver door handle button is pressed within 15 minutes of last door closing.

Conditions for Setting the DTC

B3119 02

The Keyless Entry Control Module detects a short to ground on the driver door keyless entry antenna signal circuit.

B3119 05

The Keyless Entry Control Module detects a short to voltage or an open on the driver door keyless entry antenna signal circuit.

Action Taken When the DTC Sets

Doors will not unlock/lock when the driver exterior door handle button is pressed.

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 [1][2]Electrical Diagrams

Connector End View Reference

Component Connector End Views Outside Rearview Mirror - Driver

Description and Operation

Keyless Entry System Description and Operation (without BTM) Keyless Entry System Description and Operation (without BTM)Keyless Entry System Description and Operation (with BTM) Keyless Entry System Description and Operation (with BTM)

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify DTC B3122, B3123, or B3124 is not set.

• If any of the DTCs are set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.

• If none of the DTCs are set

3. Refer to Circuit/System Testing.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the T10M Keyless Entry Antenna - Driver Door Handle, ignition ON.

2. Test for less than 1 V between the signal circuit terminal 1 and ground.

• If 1 V or greater

1. Ignition OFF, disconnect the harness connector at the K84 Keyless Entry Control Module, ignition ON.

2. Test for less than 1 V between the signal circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V, replace the K84 Keyless Entry Control Module.

• If less than 1 V

Note: When using the MIN MAX function, autorange on the DMM may not function properly. To ensure accurate test results, turn off autorange and manually set the DMM range to 000.0 V.

3. Ignition OFF, install a DMM between the signal circuit terminal 1 and ground. Set the DMM to capture DC voltage using the MIN MAX function. Turn off autorange and manually set the DMM range to 000.0 V.

4. Lock the vehicle doors using the keyless entry transmitter. Activate the antenna by pressing the exterior door handle button.

5. Verify the MAX voltage captured by the DMM is greater than 1 V.

• If 1 V or less

1. Ignition OFF, disconnect the harness connector at the K84 Keyless Entry Control Module.

2. Test for infinite resistance between the signal circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance

3. Test for less than 2 ohms in the signal circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the K84 Keyless Entry Control Module.

• If greater than 1 V

6. Test for less than 1 V between the low reference circuit terminal 2 and ground.

• If 1 V or greater

1. Ignition OFF, disconnect the harness connector at the K84 Keyless Entry Control Module, ignition ON.

2. Test for less than 1 V between the low reference circuit and ground.

• If 1 V or greater, repair the short to voltage on the circuit.

• If less than 1 V, replace the K84 Keyless Entry Control Module.

• If less than 1 V

Note: When using the MIN MAX function, autorange on the DMM may not function properly. To ensure accurate test results, turn off autorange and manually set the DMM range to 000.0 V.

7. Install a DMM between the signal circuit terminal 1 and the low reference circuit terminal 2. Set the DMM to capture DC voltage using the MIN MAX function. Turn off autorange and manually set the DMM range to 000.0 V.

8. Lock the vehicle doors using the keyless entry transmitter. Activate the antenna by pressing the exterior door handle button.

9. Verify the MAX voltage captured by the DMM is greater than 1 V.

• If 1 V or less

1. Ignition OFF, disconnect the harness connector at the K84 Keyless Entry Control Module.

2. Test for infinite resistance between the low reference circuit and ground.

• If less than infinite resistance, repair the short to ground on the circuit.

• If infinite resistance

3. Test for less than 2 ohms in the low reference circuit end to end.

• If 2 ohms or greater, repair the open/high resistance in the circuit.

• If less than 2 ohms, replace the K84 Keyless Entry Control Module.

• If greater than 1 V

10. Replace the T10M Keyless Entry Antenna - Driver Door Handle.

11. Lock the vehicle doors using the keyless entry transmitter. Activate the antenna by pressing the exterior door handle button.

12. Verify DTC B3119 is not set.

• If DTC B3119 is set
Replace the K84 Keyless Entry Control Module.

• If DTC B3119 is not set

13. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

* Front Side Door Outside Handle Bracket Replacement Front Side Door Outside Handle Bracket Replacement

* Control Module References Control Module References for Keyless Entry Control Module replacement, programming, and setup

pro multis Credits:Operation CHARM About Operation CHARM