Check the side stand/ignition interlock system for proper operation as follows:
If the engine stops running when the side stand is moved to the down position, then the side stand/ignition interlock system is working properly. If the engine continues to run with the side stand down and the transmission in gear, then the side stand/ignition interlock switch is not working properly. Have your motorcycle inspected by an authorized suzuki dealer or a qualified service mechanic.
![]()
This may interfere with rider control during a left turn. Check the side stand/ignition interlock system for proper operation before riding. Check that the side stand is returned to its full up position before starting off. |
DTC “c23” (p1651-h/l): to sensor circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
C23
The sensor voltage should be the
following for 2 sec. And more, after ignition
switch is turned on.
0.2 V ≤ Sensor voltage < 4.8 V
To sensor circuit open or shor ...
Front brake master cylinder / brake lever disassembly and assembly
Refer to “front brake master cylinder assembly removal and installation” .
Disassembly
Remove the reservoir cap (1), plate (2), diaphragm
(3) and reservoir tank (4).
Remove the brake light switch (5) and brake lever
(6).
Remove the dust boot (7) and push rod (8).
  ...
Turn signal / side-stand relay removal and
installation
Removal
Turn the ignition switch off.
Remove the frame cover assembly. Refer to “exterior parts removal and
installation” in section 9d .
Remove the turn signal/side-stand relay (1).
Installation
Install the turn signal/side-stand relay in the reverse
order of removal ...