Suzuki AN400 Supplementary Service Manual page 87

Step
3 1) Check that the front wheel speed sensor is mounted
securely.
Is the sensor mounted securely?
Action
I905H1450032-01
Yes
Go to DTC "42"
(C1642). (Refer to "DTC
"42" (C1642): Wheel
Speed Sensor Circuit
Open (F) (AN400A/
ZAK9)" (Page 4E-46).)
ABS: 4E-45
No
Tighten the mounting
bolts.