56 GSF1200AK6/SAK6 (’06-MODEL)
Step 4
1) Measure the resistance between
B (White) and ground at
the front wheel speed sensor coupler.
% Normal value: ∞ Ω (Infinity)
* Tester knob indication: Resistance (Ω)
Is the resistance between
B and ground OK?
Step 5
1) Check for continuity between
B (B/R) on the ABS control unit
coupler and
C (B/R) on the front wheel speed sensor cou-
pler.
% Normal value: Continuity ())
( Tester knob indication: Continuity test ())
Is there continuity between
B and
C?
Step 6
1) Check for continuity between
3 (W/R) on the ABS control
unit coupler and
D (W/R) on the front wheel speed sensor
coupler.
% Normal value: Continuity ())
( Tester knob indication: Continuity test ())
Is there continuity between
3 and
D?
Step 7
1) Connect the front wheel speed sensor coupler.
2) Connect three 1.5 V dry cells
A in series as shown and make
sure that their total voltage is more than 4.5 V.
Measure the current between
+ dry cell terminal and
B (B/
R) on the ABS control unit coupler.
% Normal value: 3 – 14 mA
+ Tester knob indication: Current (', 20 mA)
Is the current OK?
YES Inspect the wire harness. (Faulty W/R wire)
NO Faulty front wheel speed sensor
YES Go to step 6.
NO Inspect the wire harness. (Faulty B/R wire)
YES Go to step 7.
NO Inspect the wire harness. (Faulty W/R wire)
YES Replace the ABS control unit/HU.
NO Faulty front wheel speed sensor.
ABS control unit coupler (Harness end)
Harness
side
ABS control unit coupler (Harness end)
Harness
side
DCmA
ABS control unit coupler (Harness end)
SAMPLE
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