Blind Spot Information (BSI) System Symptom Troubleshooting - The HDS does not communicate with the BSI system
- 12 volt battery check
-1. Test the 12 volt battery .
Is the 12 volt battery OK?
YES
Go to step 2.
NO
- Body electrical system communication check
-1. Connect the HDS .
-2. Check that the HDS can communicate with the body electrical system.
Is the communication possible?
YES
Go to step 3.
NO
- Body electrical system check
-1. Check for body electrical system DTCs .
Are any DTCs indicated?
YES
Go to the indicated DTC troubleshooting .
NO
Go to step 4.
- Determine possible failure area (B-CAN_H line, B-CAN_L line, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Left side BSI radar unit 6P connector Right side BSI radar unit 6P connector -3. Turn the vehicle to the ON mode.
-4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Left side BSI radar unit 6P connector: disconnected Right side BSI radar unit 6P connector: disconnected Test point 1 Left side BSI radar unit 6P connector No. 1 Test point 2 Left side BSI radar unit 6P connector No. 6 Test point 1 Right side BSI radar unit 6P connector No. 1 Test point 2 Right side BSI radar unit 6P connector No. 4/No. 6 Is there battery voltage?
YES
Go to step 5.
NO
Go to step 6.
- Open wire check (B-CAN_H line, B-CAN_L line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Body control module connector B (36P) -3. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Left side BSI radar unit 6P connector: disconnected Right side BSI radar unit 6P connector: disconnected Body control module connector B (36P): disconnected Left side BSI radar unit
Circuit name Test point 1 Test point 2 Connector Terminal Connector Terminal B-CAN_H Left side BSI radar unit 6P connector No. 3 Body control module connector B (36P) No. 20 B-CAN_L No. 5 No. 21 Right side BSI radar unit
Circuit name Test point 1 Test point 2 Connector Terminal Connector Terminal B-CAN_H Right side BSI radar unit 6P connector No. 3 Body control module connector B (36P) No. 20 B-CAN_L No. 5 No. 21 Is there 1.0 Ω or less?
YES
Replace the appropriate BSI radar unit .
NO
Repair an open in the B-CAN_H wire or B-CAN_L wire between the appropriate BSI radar unit and the body control module.
- Open wire check (IG1_OPTION line)
-1. Turn the vehicle to the ON mode.
-2. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Left side BSI radar unit 6P connector: disconnected Right side BSI radar unit 6P connector: disconnected Test point 1 Left side BSI radar unit 6P connector No. 1 Test point 2 Body ground Test point 1 Right side BSI radar unit 6P connector No. 1 Test point 2 Body ground Is there battery voltage?
-
YES
- Left side BSI radar unit: Repair an open in the GND wire between the left side BSI radar unit and body ground (G505).
- Right side BSI radar unit: Repair an open in the GND wire between the right side BSI radar unit and body ground (G504).
NO
Repair an open in the wire between the appropriate BSI radar unit and No. D5 fuse.
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