DTC B2647
DTC B2647 : Rear sensor power failure
| DTC Description | DTC |
|---|---|
| B2647 Rear sensor power failure |
DTC (Parking and Back-Up Sensor Control Unit)
NOTE:
- If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
- The connection order of the sensor is 1st (left corner sensor) -> 2nd (left center sensor) -> 3rd (right center sensor) -> 4th (right corner sensor) from the side near the control unit.
- Problem verification
-1. Clear the DTCs with the HDS.
Clear DTCs
-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 B2647 Rear sensor power failure Is DTC B2647 indicated?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- Shorted wire check (RSP L, RSG L lines) 1
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Parking and back-up sensor control unit 16P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnectedTest point 1 Parking and back-up sensor control unit 16P connector No. 16 Test point 2 Parking and back-up sensor control unit 16P connector No. 12 Is there continuity?
YES
Go to step 3.
NO
Go to step 10.
- Shorted wire check (RSP R, RSG R lines) 1
-1. Disconnect the following connector.
Right rear center sensor 6P connector -2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnected
Right rear center sensor 6P connector: disconnectedTest point 1 Right rear center sensor 6P connector (female terminals) No. 5: Test point 2 Right rear center sensor 6P connector (female terminals) No. 1: Is there continuity?
YES
Go to step 4.
NO
Go to step 5.
- Shorted wire check (RSP R, RSG R lines) 2
-1. Disconnect the following connector.
Right rear corner sensor 6P connector -2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnected
Right rear center sensor 6P connector: disconnected
Right rear corner sensor 6P connector: disconnectedTest point 1 Right rear center sensor 6P connector (female terminals) No. 5: Test point 2 Right rear center sensor 6P connector (female terminals) No. 1: Is there continuity?
YES
Repair a short in the wires.
NO
- Shorted wire check (RSP CR, RSG CR lines) 1
-1. Reconnect the following connector.
Right rear center sensor 6P connector -2. Disconnect the following connector.
Left rear center sensor 6P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnected
Left rear center sensor 6P connector: disconnectedTest point 1 Left rear center sensor 6P connector (female terminals) No. 5: Test point 2 Left rear center sensor 6P connector (female terminals) No. 1: Is there continuity?
YES
Go to step 6.
NO
Go to step 7
- Shorted wire check (RSP CR, RSG CR lines) 2
-1. Disconnect the following connector.
Right rear center sensor 6P connector -2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnected
Left rear center sensor 6P connector: disconnected
Right rear center sensor 6P connector: disconnectedTest point 1 Left rear center sensor 6P connector (female terminals) No. 5: Test point 2 Left rear center sensor 6P connector (female terminals) No. 1: Is there continuity?
YES
Repair a short in the wires.
NO
- Shorted wire check (RSP CL, RSG CL lines) 1
-1. Reconnect the following connector.
Left rear center sensor 6P connector -2. Disconnect the following connector.
Left rear corner sensor 6P connector -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnected
Left rear corner sensor 6P connector: disconnectedTest point 1 Left rear corner sensor 6P connector (female terminals) No. 5: Test point 2 Left rear corner sensor 6P connector (female terminals) No. 1: Is there continuity?
YES
Go to step 8.
NO
Go to step 9.
- Shorted wire check (RSP CL, RSG CL lines) 2
-1. Disconnect the following connector.
Left rear center sensor 6P connector -2. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnected
Left rear corner sensor 6P connector: disconnected
Left rear center sensor 6P connector: disconnectedTest point 1 Left rear corner sensor 6P connector (female terminals) No. 5: Test point 2 Left rear corner sensor 6P connector (female terminals) No. 1: Is there continuity?
YES
Repair a short in the wires.
NO
- Shorted wire check (RSP L, RSG L lines) 2
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnected
Left rear corner sensor 6P connector: disconnectedTest point 1 Parking and back-up sensor control unit 16P connector No. 16 Test point 2 Parking and back-up sensor control unit 16P connector No. 12 Is there continuity?
YES
Repair a short in the wires.
NO
- Shorted wire check (RSP L line)
-1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Parking and back-up sensor control unit 16P connector: disconnectedTest point 1 Parking and back-up sensor control unit 16P connector No. 16 Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the wire.
NO