LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2013 >> Kizashi Base, Standard Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Start System >> Diagnostics Information and Procedures >> DTC B1123: Backup Power Supply Malfunction >> DTC Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Troubleshooting

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.
scientia non olet · About LEMON Manuals