DTC B2618, B2619, B261A, B261B (2020 2021)
DTC B2618 : Front 1st sensor data failure
DTC B2619 : Front 2nd sensor data failure
DTC B261A : Front 3rd sensor data failure
DTC B261B : Front 4th sensor data failure
NOTE:
- If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
- Before you troubleshoot, resetting the parking and back-up sensor control unit .
- The connection order of the sensor is 1st -> 2nd -> 3rd -> 4th from the side near the control unit.
| DTC Description | DTC |
|---|---|
| B2618 Front 1st sensor data failure | |
| B2619 Front 2nd sensor data failure | |
| B261A Front 3rd sensor data failure | |
| B261B Front 4th sensor data failure |
DTC (Parking and Back-Up Sensor Control Unit)
- Problem verification
-1. Clear the DTCs with the HDS.
-2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
-3. Wait for at least 6 seconds.
-4. Check for DTCs with the HDS.
DTC Description DTC B2618 Front 1st sensor data failure B2619 Front 2nd sensor data failure B261A Front 3rd sensor data failure B261B Front 4th sensor data failure Are any DTCs indicated?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- DTC check
-1. Check for DTCs with the HDS.
DTC Description DTC B2618 Front 1st sensor data failure B2619 Front 2nd sensor data failure B261A Front 3rd sensor data failure B261B Front 4th sensor data failure B2646 Front sensor power failure B2648 Front sensor signal short to ground Are any DTCs indicated?
YES: with front center sensor
Go to step 3.
YES: without front center sensor
Go to step 3.
YES: with front center sensor
Go to step 4.
YES: with front center sensor
Go to step 5.
YES: with front center sensor
Go to step 6.
YES: without front center sensor
Go to step 7.
YES
Go to parking and back-up sensor system DTC B2646 troubleshooting .
YES
Go to parking and back-up sensor system DTC B2648 troubleshooting .
NO
Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- Open wire check (BOF SIDE L, SOF SIDE L, E1 SIDE L lines)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Parking and back-up sensor control unit 16P connector Left front corner sensor 6P connector -3. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Parking and back-up sensor control unit 16P connector: disconnected Left front corner sensor 6P connector: disconnected Test point 1 Parking and back-up sensor control unit 16P connector No. 7 Test point 2 Left front corner sensor 6P connector (female terminals) No. 6: Test point 1 Parking and back-up sensor control unit 16P connector No. 6 Test point 2 Left front corner sensor 6P connector (female terminals) No. 4: Test point 1 Parking and back-up sensor control unit 16P connector No. 13 Test point 2 Left front corner sensor 6P connector (female terminals) No. 2: Is there 1.0 Ω or less?
YES
Replace the left front corner sensor .
NO
Repair an open or high resistance in BOF SIDE L, SOF SIDE L, or E1 SIDE L wire.
- Open wire check (BOF CTR L, SOF CTR L, E1 CTR L lines)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Left front corner sensor 6P connector Left front center sensor 6P connector -3. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Left front corner sensor 6P connector: disconnected Left front center sensor 6P connector: disconnected Test point 1 Left front corner sensor 6P connector (female terminals) No. 5: Test point 2 Left front center sensor 6P connector (female terminals) No. 6: Test point 1 Left front corner sensor 6P connector (female terminals) No. 3: Test point 2 Left front center sensor 6P connector (female terminals) No. 4: Test point 1 Left front corner sensor 6P connector (female terminals) No. 1: Test point 2 Left front center sensor 6P connector (female terminals) No. 2: Is there 1.0 Ω or less?
YES
Replace the left front center sensor .
NO
Repair an open or high resistance in BOF CTR L, SOF CTR L, or E1 CTR L wire.
- Open wire check (BOF CTR R, SOF CTR R, E1 CTR R lines)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Left front center sensor 6P connector Right front center sensor 6P connector -3. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Left front center sensor 6P connector: disconnected Right front center sensor 6P connector: disconnected Test point 1 Left front center sensor 6P connector (female terminals) No. 5: Test point 2 Right front center sensor 6P connector (female terminals) No. 6: Test point 1 Left front center sensor 6P connector (female terminals) No. 3: Test point 2 Right front center sensor 6P connector (female terminals) No. 4: Test point 1 Left front center sensor 6P connector (female terminals) No. 1: Test point 2 Right front center sensor 6P connector (female terminals) No. 2: Is there 1.0 Ω or less?
YES
Replace the right front center sensor .
NO
Repair an open or high resistance in BOF CTR R, SOF CTR R, or E1 CTR R wire.
- Open wire check (BOF SIDE R, SOF SIDE R, E1 SIDE R lines)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Right front center sensor 6P connector Right front corner sensor 6P connector -3. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Right front center sensor 6P connector: disconnected Right front corner sensor 6P connector: disconnected Test point 1 Right front center sensor 6P connector (female terminals) No. 5: Test point 2 Right front corner sensor 6P connector (female terminals) No. 6: Test point 1 Right front center sensor 6P connector (female terminals) No. 3: Test point 2 Right front corner sensor 6P connector (female terminals) No. 4: Test point 1 Right front center sensor 6P connector (female terminals) No. 1: Test point 2 Right front corner sensor 6P connector (female terminals) No. 2: Is there 1.0 Ω or less?
YES
Replace the right front corner sensor .
NO
Repair an open or high resistance in BOF SIDE R, SOF SIDE R, or E1 SIDE R wire.
- Open wire check (BOF CTR L, SOF CTR L, E1 CTR L lines)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Left front corner sensor 6P connector Right front corner sensor 6P connector -3. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Left front corner sensor 6P connector: disconnected Right front corner sensor 6P connector: disconnected Test point 1 Left front corner sensor 6P connector (female terminals) No. 5: Test point 2 Right front corner sensor 6P connector (female terminals) No. 6: Test point 1 Left front corner sensor 6P connector (female terminals) No. 3: Test point 2 Right front corner sensor 6P connector (female terminals) No. 4: Test point 1 Left front corner sensor 6P connector (female terminals) No. 1: Test point 2 Right front corner sensor 6P connector (female terminals) No. 2: Is there 1.0 Ω or less?
YES
Replace the right front corner sensor .
NO
Repair an open or high resistance in BOF CTR L, SOF CTR L, or E1 CTR L wire.