Product Manual

32
Fault
Code
Explanation Possible Causes
PLC
Select
1M
PLC
Select
2M
80
Output leakage or poor insulation on any
of the valve channels.
Modulator valve solenoid failure or
valve cable damage. Indicates that
the solenoid or its cable has a short
circuit to positive power (12 volts DC).
The most likely cause is a damaged
cable or solenoid. Disconnect the
indicated solenoid and check the
resistance at the solenoid pins.
If solenoid checks good and 80-89
code still exists, check ECU.
XX
81
Hold solenoid short circuit to Permanent
Power on Red valve channel.
X
82
Hold solenoid short circuit to Permanent
Power on Blue valve channel.
X
83
Hold solenoid short circuit to Permanent
Power on Yellow valve channel.
X
87
Dump solenoid out shorted to Permanent
Power on Red valve channel.
X
88
Dump solenoid out shorted to Permanent
Power on Blue valve Channel. X
89
Dump solenoid out shorted to Permanent
Power on Yellow valve channel. X
90
Low supply voltage fault. This code is not
stored in memory.
Verify 12 V DC power source. Do Not
Use Battery Charger as Power Supply.
ECU minimum operating voltage is
8.5 V DC.
XX
91
No internal ABS ECU solenoid voltage
available.
Verify permanent power is present.
XX
92 Power input over voltage fault.
Verify 12 VDC power source. Do Not
Use Battery Charger as Power Supply.
ECU maximum operating voltage is
16.0 VDC.
XX
93 Short circuit on ABS ECU internal relay.
Replace ECU
XX
99 ABS Corrupt Memory X X
9A ABS Corrupt Memory X
9
3.2 ELECTRICAL CONTROL PANEL
A. POWER SOURCE SWITCH
Select between Internal Battery, External Power or Power Off.
Center: OFF (battery charge in this position only)
Up: Installed Battery ON
Down: External Power ON (power supply is an optional accessory)
B. BACKLIT 30 AMP AMMETER
Meter shows current draw of a selected circuit up to 30 amps.
C. TROUBLE WARNING INDICATORS
Flashing red LEDs indicate problems that may exist in a selected circuit. This includes
the Overload Indicator, Open Circuit Indicator, and Reversed (Battery) Polarity Indicator.
D. MUTE SWITCH
ON disables sound. OFF enables sound.
E. AUTO CYCLE INDICATOR
Illuminates when Auto Cycle Mode is engaged.
F. VOLTAGE INDICATOR
Shows supplied battery voltage integrity. Operating voltage range: 12/24 volt DC.
G. GROUND INTEGRITY
A large green LED above the control knob indicates ground status. Ground
integrity is automatically verifi ed when power is turned on.
H. CONTROL KNOB
Knob activates all electrical test modes and circuits to be diagnosed.
I. CIRCUIT INDICATORS
The small green LEDs illuminate or blink in testing phase.
J. HAZARD SWITCH
Activate the four-way fl ashers on trailer.
K. 30 AMP FUSE SOCKET
Overload protection.
A
B
D
Electrical Control Panel
C
F
E
G
H
I
J
K