IPA Tools 9005A Super MUTT Head - Manual (Page 26)

26
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Red channel speed sensor S1A has low
sensor output
Red channel speed sensor S1B has low
sensor output.
Blue channel speed sensor S2A has low
sensor output.
Yellow channel speed sensor S2B has low
sensor output.
Blue channel speed sensor S3A has low
sensor output.
Yellow channel speed sensor S3B gap too
large. Gap should be kept to a minimum.
Sensor or spring clip is worn or
not properly adjusted, wiring
open or short circuit, wheel
bearing not properly adjusted
(these faults will only occur at
speeds of greater than 6 mph).
Measure the AC voltage at the
sensor in question while rotating
the wheel at a rate of about one
revolution every two seconds.
The output should be at least 200
millivolts (0.2 VAC). If this is not
the case, push in the sensor until
it touches the exciter and rotate
the wheel again. If this doesn’t
correct the problem, then the
sensor and the sensor block clip
should be replaced.
If sensor extensions are used
verify exension continuity and
connections. Replace sensor and/
or sensor cable.
Inspect exciter teeth for minor
damage or teeth filled with
debris.
Verify all exciters have the same
number of teeth.
Verify sensor and valve wiring/
plumbing is correct.
See side by side axle by axle
configurations.
Fault
Code
Explanation
Possible Causes
PLC
Select
1M
PLC
Select
2M
11
12
13
14
15
16