DTC Troubleshooting: B22A1
DTC B22A1: Wireless Charger Unit ACC Input Circuit Failure
DTC Description
DTC
B22A1 Wireless charger unit ACC input circuit failure
  

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1.
Problem verification:

Problem verification
?1.
Clear the DTCs with the HDS.


?2.
Press the engine start/stop button to select the OFF mode and then the ON mode.

?3.
Wait for at least 6 seconds.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
B22A1 Wireless charger unit ACC input circuit failure
  

Is DTC B22A1 indicated?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for loose or poor connections.?
2.
Shorted wire check (ACC to +B BACK UP line):

Shorted wire check (ACC to +B BACK UP line)
?1.
Press the engine start/stop button to select the OFF mode and then press the wireless charger power button.

Does the wireless charger operate?

     
YES
     
     
     
A short in the ACC wire to the +B BACK UP wire.?
     
NO
     
     
     
Go to step 3.
3.
Wireless charger operation check:

Wireless charger operation check
?1.
Press the engine start/stop button to select the ON mode.

?2.
Push and hold the wireless charger power switch for 1 second or more and repeat it.

Does the indicator (green) repeated to ON and OFF?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Go to step 5.
4.
Fuse check:

Fuse check
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Check the following fuses.
Fuse
No. B37 (7.5 A)
Location
Under-dash fuse/relay box

Is the fuse OK?

     
YES
     
     
     
An open or poor connection in the ACC wire between the No. B37 (7.5 A) fuse and the wireless charger .?
     
NO
     
     
     
Replace the fuse. If the fuse blows again, repair a short to ground in the No. B37 (7.5 A) fuse circuit.?
5.
Fuse check:

Fuse check
?1.
Check the following fuses.
Fuse
No. B26 (7.5 A)
Location
Under-dash fuse/relay box

Is the fuse OK?

     
YES
     
     
     
An open or poor connection in the ACC KEYLOCK wire between the No. B26 (7.5 A) fuse and the MICU; replace the under-dash fuse/relay box.?
     
NO
     
     
     
Replace the fuse. If the fuse blows again, repair a short to ground in the No. B26 (7.5 A) fuse circuit.?