Code
Fault Description
Course of correction
0700
Bias Voltage Error
High reference signal is grounded
0701
Mid Rail Voltage High
0702
Mid rail bias voltage high
0704
12V supply failure
0705
2.5 V reference error
0706
High reference ground fault
5 Volt reference is Contacting 0 Volt Reference
0810
Throttle High reference error
For all Throttle Diagnostic Codes
0811
Throttle Max Wiper Difference Error
Check throttle wiring for shorts or opens. Repair or replace as necessary.
0812
Throttle Max Pull Down Difference Error
If diagnostic code is not cleared, then replace the throttle potentiometer
0813
Throttle Max Pull Safe Difference Error
0814
Throttle Reference Error
0815
Throttle Lo Reference Error
0816
Throttle Hi Reference ISO Error
0817
Throttle Lo Reference ISO Error
0818
Throttle Error: Both have Readings
0A01
Power down error
Check the wiring to the the main power switch. This code indicates rapid power cycling
1310
Excessive Current Trip
Current Draw on Control exceeds maximum limit of 250 amps
Resistance in the machine's Main Breaker and/or battery cable to control
Gives a false reading to the control.
1311
Brush head actuator, excessive current
Device connected to the brush head actuator has exceeded maximum
limit of 21 amps surge value and 7 amps continuous.
Check that the arms are not too tight (torque = 25 inch lbs, almost finger
loose). check that actuator system is not binding.
1312
Squeegee actuator, excessive current
Device connected to squeegee actuator (on riders) has exceeded max
limit of 21 amps surge value and 7 amps continuous load.
Check that the arms are not too tight (torque = 25 inch lbs, almost finger
loose). check that actuator system is not binding.
1313
Solution valve circuit, excessive current
Current exceeded seven amps max. Check valve operation. Coil may
be corroded, or short in wires.
1314
Soft Aux 4 Over current Occurred
Aux 4 is not used by us at this time.
1318
Soft Brake light Over current Occurred
Brake light circuit not used by us at this time.
131C Backup Alarm Over current occurred
Backup alarm drew more than 2 amps max allowed. Check inline resistor
on some models. If resistor is bad, remove it, and put piece of duct tape
over speaker of alarm. (Reverse EMF from the echo is causing the problem)
1321
Aux 1 (Brush Actuator) Over current 2 Occurred
Brush actuator exceeded 12 amps for less than 0.1 sec.
See notes for 1311
1322
Aux 2 (Squeegee Actuator) Over current 2 Occurred
Squeegee actuator exceeded 12 amps for less than 0.1 sec.
See notes for 1312
1400
Bridge Fault 1 - Brush or traction motor not in correct
voltage range.
Possible short between B+ and the high amperage outputs
1401
Bridge Fault 2 - Voltage difference on traction bridge
too great
1402
Brush Bridge Fault - Battery/Brush bridge voltage
difference too great
1411
Brush actuator positive wire is shorting
Find appropriate wire and remove short.
1412
Brush actuator negative wire is shorting
Find appropriate wire and remove short.
1413
Squeegee actuator positive wire is shorting
Find appropriate wire and remove short.
1414
Squeegee actuator negative wire is shorting
Find appropriate wire and remove short.
1500
Brake Fault - Solenoid brake circuit is open
Parking Brake is disconnected or coil of brake is open.
1501
Brake Fault - Solenoid brake circuit is shorted
Parking Brake coil or wiring is shorted.
1502
Brake Fault - Brake Over Current Error
Parking brake coil is shorted internally or wiring too it is shorted
1503
Solenoid brake driver fault
1504
Solenoid brake interlock fault
1507
Brake Over current
Parking Brake is drawing too much power. Check wiring and brake.
1600
High Battery Error
Battery voltage is too high. Batteries hooked up wrong, or still on charger.
1D02 Spec Change Trip
This is normal--comes up when you reprogram the control. Turn key off and
on to reset the program.
1E03
Inhibit activated
Inhibit is power signal intended to turn off control. We don't use it.
1E04
Inhibit Activated 2
Inhibit is power signal intended to turn off control. We don't use it.
1E06
Inhibit Input Out of Range
Inhibit circuit voltage is too low or high to work. We don't use Inhibit.
2C00 Low Battery Error
Voltage in battery is too low (18 volts min on 24V system; 28V on 36V system)
2C01 Low Battery Error--2
Recharge the battery in either case. check voltage under load to see if bad
2C02 Battery lockout occurred
cell is pulling down voltage.
2C03 Battery Lockout occurred--2
2F01
Throttle Displaced Error
Pedal was pushed before key turned on. Not a problem. Restart machine.
3A00
Bad Program Settings
You reprogrammed the control with settings that are not authorized.
3100
Low bridge voltage
Probable short circuit of output device or wiring
3101
Traction bridge fault
3102
Brush/Vac bridge fault
3103
Waiting for bridge to charge
7000
Startup With Push Selected
Freewheel input signal selected at startup. Disconnect freewheel switch.
PAGE 33
TROUBLESHOOTING CENTRAL COMMAND II V4
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