PBV20N2 PBV20N2 Service Service ManualManual
Table 10. Traction controller alarm codesTable 10. Traction controller alarm codes
CODE
CODE TRUCKTOOL TRUCKTOOL AND AND DISPLAY DISPLAY DESCRIPTIONDESCRIPTION
88
Self diagnosis test failedSelf diagnosis test failed
WATCHDOGWATCHDOG
(Alarm) Stored(Alarm) Stored
This is a safety-related self diagnosis test within This is a safety-related self diagnosis test within the logic between the master (drive) and the logic between the master (drive) and slaveslave
(pump) microcontrollers. The alarm indicates that the master and slave watchdog message is(pump) microcontrollers. The alarm indicates that the master and slave watchdog message is
missing or late.missing or late.
This alarm can be caused by a This alarm can be caused by a CAN bus malfunction, which blinds the master-slaveCAN bus malfunction, which blinds the master-slave
communication. Check all the CAN bus cables and measure the bus resistance between CANcommunication. Check all the CAN bus cables and measure the bus resistance between CAN
high and low. The high and low. The bus resistance value should be 60bus resistance value should be 60 ΩΩ. Measure also the CAN cables’. Measure also the CAN cables’
resistance between the truck chassis and the 0 cables. There should resistance between the truck chassis and the 0 cables. There should not be any significantnot be any significant
connection and the resistance value should be over 1 connection and the resistance value should be over 1 MMΩ.Ω.
If CAN bus is OK, the problem is in the controller and it must be replaced.If CAN bus is OK, the problem is in the controller and it must be replaced.
1313 Controller memory errorController memory error
EEPROM KOEEPROM KO
(Warning)(Warning)
StoredStored
This warning is caused by a hardware or This warning is caused by a hardware or software defect of the non-volatile embedded memorysoftware defect of the non-volatile embedded memory
supporting the controller parameters. This alarm does not prevent truck operation, supporting the controller parameters. This alarm does not prevent truck operation, but the truckbut the truck
will work with the default will work with the default values.values.
In case of this warning, perform a In case of this warning, perform a CLEAR EEPROM operation. Switch the key off and on toCLEAR EEPROM operation. Switch the key off and on to
check the result. If the alarm occurs permanently, replace the COMBIACX controller. If thecheck the result. If the alarm occurs permanently, replace the COMBIACX controller. If the
alarm disappears, the previously stored parameter values will have been replaced by thealarm disappears, the previously stored parameter values will have been replaced by the
default values.default values.
1717 Hardware high current protection failureHardware high current protection failure
LOGIC FAILURE #3LOGIC FAILURE #3
(Alarm) Stored(Alarm) Stored
This alarm is caused by a hardware problem This alarm is caused by a hardware problem in the logic card circuit for in the logic card circuit for high current (overload)high current (overload)
protection.protection.
This fault is not This fault is not related to external components, so when it appears, replace the related to external components, so when it appears, replace the COMBIACXCOMBIACX
controller.controller.
1818
Motor voltage feedback circuit damagedMotor voltage feedback circuit damaged
LOGIC FAILURE #2LOGIC FAILURE #2
(Alarm) Stored(Alarm) Stored
This alarm is caused by a fault This alarm is caused by a fault in the logic board in the logic board managing the phase’s voltage feedback.managing the phase’s voltage feedback.
This fault is not This fault is not related to external components, so when it appears, replace the related to external components, so when it appears, replace the COMBIACXCOMBIACX
controller.controller.
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