Turn the vehicle to the OFF (LOCK) mode, then start the engine.
?4.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
U0047-00 CAN Communication Failure (Bus OFF Ch 2)
Is DTC U0047-00 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
2.
EBB CAN circuit resistance check:
EBB CAN circuit resistance check
?1.
Turn the vehicle to the OFF (LOCK) mode with driver's door open.
?2.
Wait for 3 minutes.
NOTE: Do not close the driver's door.
?3.
Disconnect the following connector.
VSA modulator-control unit 46P connector
?4.
Measure the resistance between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
VSA modulator-control unit 46P connector: disconnected
The EBB CAN H, EBB CAN L wires are OK. Check for loose terminals and poor connections in the electric brake booster 26P connector. If they are OK, replace the electric brake booster.?
NO
Repair an open in the wire between the VSA modulator-control unit and the electric brake booster.?
5.
Shorted wire check (EBB CAN H, EBB CAN L lines):
Shorted wire check (EBB CAN H, EBB CAN L lines)
?1.
Disconnect the following connector.
Electric brake booster 26P connector
?2.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
VSA modulator-control unit 46P connector: disconnected
Electric brake booster 26P connector: disconnected
Repair a short to ground in the wire between the VSA modulator-control unit and the electric brake booster.?
NO
The EBB CAN H, EBB CAN L wires are OK. Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit.?