Suzuki 2006 GSF1200AK6 Supplementary Service Manual page 32

Step 10
1) Turn the ignition switch to OFF.
2) Remove the right frame cover. (!GSF1200K6/SK6 9D-5)
3) Short the mode select coupler terminals (Orange – B/W)
using the special tool.
" 09930-82710: Mode select switch
4) Check for continuity between C (Orange) and N (B/W) at the
coupler.
( Tester knob indication: Continuity ())
Is there continuity between C and N?
YES Replace the ABS control unit/HU.
Inspect the wire harness. (Faulty mode select
NO
switch wire)
GSF1200AK6/SAK6 ('06-MODEL)
O
B/W
ABS control unit coupler (Harness end)
31