Product Manual

30
Fault
Code
Explanation
21
Red channel wheel speed
sensor S1A has an erratic
output voltage.
22
Red channel wheel speed
sensor S1B has an erratic
output voltage.
23
Blue channel wheel speed
sensor S2A has an erratic
output voltage
24
Yellow channel wheel speed
sensor S2B has an erratic
output voltage.
25
Blue channel wheel speed
sensor S3A has an erratic
output voltage.
26
Yellow channel wheel speed
sensor S3B has an erratic
output voltage.
Possible Causes
Loose sensor, connection ,
bracket or exciter, damaged
exciter, sensor is not prop-
erly adjusted or has worn cable
insulation, or worn sensor block
clip, wheel bearing failure,
wheel bearing is not properly
adjusted (these faults will only
occur at speeds greater than
6 mph).
Measure the AC voltage at the
sensor in question while rotating
the wheel at a rate of about one
rotation 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 should
be replaced.
Verify the tire and wheel size
is large enough for 100 tooth
exciter ring. If these faults
re-occur at the same speed,
inspect the exciter ring for
damage.
Smaller wheels and tires require
80 tooth exciter rings. Reference
Tire Scale Factor Chart.
Verify sensor and valve wiring/
plumbing is correct.
See side by side and axle by
axle confi gurations.
PLC
Select
1M
PLC
Select
2M
Occurs Only When Vehicle is Stationary
31
Auxiliary channel 1 fault (digi-
tal channel 1) output only
32
Auxiliary channel 2 fault (digi-
tal channel 2) output only
33
Auxiliary channel 3 fault (digi-
tal channel 3) output only
34
Auxiliary channel 4 fault (digi-
tal channel 4) output only
35
Auxiliary channel 5 fault (digi-
tal channel 5) output only
PLC Select 2M Plus (ABS
Auxiliary Codes)
Note:
These Codes are only used with
PLC Select 2M Plus ABS that
supports trailer Auxiliaries.
Auxiliary Channel has an open
circuit or the ECU (Electronic
Control Unit) has an auxiliary
device connected and is not
programmed to be.
Note: These codes do not affect
ABS performance and do not
illuminate the tractor trailer ABS
warning lamps.
X
X
X
X
X
X
11
PART 4: SETUP
4.1 CHOOSING A BATTERY
The MUTT® is a 12/24V DC device. Attempting to power
your MUTT
® with anything other than a 12 or 24 Volt DC
power source will destroy the internal circuitry and void your
warranty.
(Manufacturer’s Suggested Replacement: Group 31. MUTT
® will auto detect 12 or 24
Volts. If 24 volts is required, two smaller 12 volt batteries can be used, but they must
be wired in series.)
• Battery Voltage: 12/24V DC
• Battery Type: Lead Acid
• Battery Compartment Dimensions:
13.5" L x 11" H x 9.25" D
• Battery Protection: Inline 30 amp Fuse for
Overcharge
• Battery must be clean and leak free.
• Identify battery polarity.
• Attach ring terminal (with red heat-shrink) to
positive (+) side and ring terminal (with black
heat-shrink) to negative (-) side. Also see
warning indicators on page 4. Connections
must only be made to clean terminal rings.
• Any loose or corroded connectors may cause
misdiagnosis or result in erroneous readings.
• Use well-charged battery.
Battery Compartment
DC POWER
Do not plug directly into
AC wall outlet
4.2 AXLE AND WHEEL INSTALLATION
• Insert axle (A) into left and right axle bores (B) at rear underside of the MUTT®.
• Slide one spacer (C) onto each side of the axle (A).
• Install one wheel (D) onto each side of the axle (A) with valve stem facing away
from the MUTT
®.
• Insert one E-Clip (E) into the groove (F) in the axle end in front of the wheel to
each side.
• Check tire pressure. It must not exceed 8 PSI.
NOTE: Install the Foot at the bottom of the unit with 45° angle side towards the back
of the unit.
F
E
E-Clip Installation
VALVE STEM
GROOVE
TIRE
(PUSH ONTO AXLE)
WHEEL
B A
F
C
D
E
Axle and Wheel Installation
FRONT
(UNDERSIDE OF MUTT
®
)