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 is pulled, the keyless entry control module communicates with the driver door handle keyless entry antenna.
Conditions for Running the DTC
* The touch pad in the driver door handle is touched within 15 minutes of last door closing.
* The front or rear door handle on the driver side is pulled.
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 when front or rear driver handle is pulled. Doors will not lock with 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 [1][2]Electrical Diagrams
Connector End View Reference
Component Connector End Views Sunshade - Left (D6I)
Description and Operation
Keyless Entry System Description and Operation (with BTM) Keyless Entry System Description and Operation (with BTM)Keyless Entry System Description and Operation (without BTM) Keyless Entry System Description and Operation (without 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
Note: The A24D driver exterior door handle assembly has two harness connectors. Of these two harness connectors, make sure that only the T10M driver door handle keyless entry antenna harness connector is disconnected. Disconnecting both harness connectors will result in the inability to activate the antenna and cause an improper diagnosis.
1. Ignition OFF, disconnect the harness connector at the T10M driver door handle keyless entry antenna, 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. 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 pulling the driver exterior door handle.
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 ohm in the signal circuit end to end.
• If 2 ohm or greater, repair the open/high resistance in the circuit.
• If less than 2 ohm, 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 pulling the driver exterior door handle.
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 ohm in the low reference circuit end to end.
• If 2 ohm or greater, repair the open/high resistance in the circuit.
• If less than 2 ohm, replace the K84 keyless entry control module.
• If greater than 1 V
10. Replace the T10M driver door handle keyless entry antenna.
11. Lock the vehicle doors using the keyless entry transmitter. Activate the antenna by pulling the driver exterior door handle.
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 - driver door handle keyless entry antenna replacement
* Control Module References Control Module References for keyless entry control module replacement, programming, and setup