Suzuki 2006 GSF1200AK6 - Page 56

GSF1200AK6/SAK6 (’06-MODEL) 55
DTC “42” (C1642): Wheel speed sensor circuit open (F)
Step 1
1) Turn the ignition switch to OFF.
2) Remove the right frame head cover. (GSF1200A)
(!GSF1200K6/SK6 9D-6)
3) Remove the left frame cover. (!GSF1200K6/SK6 9D-5)
4) Remove the fuse box mounting bolt. (!Page 28)
5) Check the ABS control unit coupler and front wheel speed
sensor coupler for loose or poor contacts. If OK, then discon-
nect the ABS control unit coupler.
6) Measure the resistance between

B (B/R) and ground at the
ABS control unit coupler.
% Normal value: ∞ Ω (Infinity)
" 09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
* Tester knob indication: Resistance (Ω)
Is the resistance between

B and ground OK?
Step 2
1) Disconnect the front wheel speed sensor coupler.
2) Measure the resistance between

A (Black) and ground at
the front wheel speed sensor coupler.
% Normal value: ∞ Ω (Infinity)
* Tester knob indication: Resistance (Ω)
Is the resistance between

A and ground OK?
Step 3
1) Measure the resistance between

3 (W/R) and ground at the
ABS control unit coupler.
% Normal value: ∞ Ω (Infinity)
* Tester knob indication: Resistance (Ω)
Is the resistance between

3 and ground OK?
POSSIBLE CAUSE
• Poor contact on the front wheel speed sensor coupler
• Faulty front wheel speed sensor, etc.
YES Go to step 3.
NO Go to step 2.
YES Inspect the wire harness. (Faulty B/R wire)
NO Faulty front wheel speed sensor
YES Go to step 5.
NO Go to step 4.
ABS control unit coupler
(Harness end)
Sensor side
ABS control unit coupler
(Harness end)
SAMPLE