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Home >> Suzuki >> 2013 >> Kizashi Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Keyless Start System) >> Diagnostics Information and Procedures >> DTC B1123: Backup Power Supply Malfunction >> DTC Troubleshooting
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DTC Troubleshooting

WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS PROCEDURE

Step Action YES NO
1  Fuse check 
  1. Confirm that ignition mode of keyless push start system is "OFF".
  2. Check "DOME" fuse.

Is it in good condition? 		 Replace keyless start control module and recheck DTC, see Keyless Start Control Module Removal and Installation . Replace "DOME" fuse, and go to Step 2.
2  DTC check 
  1. Push engine switch to change ignition mode to "ON".
  2. Check DTC, see DTC Check .

Is DTC B1123 still detected? 		 Go to Step 3. End.
3  Each system check connected via "DOME" fuse 
  1. Check each system connected via "DOME" fuse, except keyless start control module.

Is it in good condition? 		 Replace "DOME" fuse and keyless start control module, and recheck DTC, see Keyless Start Control Module Removal and Installation . . Repair or replace defective part and/or wire harness, and then replace "DOME" fuse and recheck DTC.
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