PBV20N2 PBV20N2 Service Service ManualManual
CODE
CODE TRUCKTOOL TRUCKTOOL AND AND DISPLAY DISPLAY DESCRIPTIONDESCRIPTION
219219 Proportional valve errorProportional valve error
PEV NOT OKPEV NOT OK
(Alarm) Stored(Alarm) Stored
This alarm indicates that the voltage on the positive line of the EV outputs (B2) is too high orThis alarm indicates that the voltage on the positive line of the EV outputs (B2) is too high or
too low.too low.
In such a case, check if the In such a case, check if the voltage dropped down because of a voltage dropped down because of a faulty load connected to B2. Iffaulty load connected to B2. If
not, replace the COMBIACX controller.not, replace the COMBIACX controller.
220220
Startup diagnosis for key-line failedStartup diagnosis for key-line failed
KEY OFF SHORTEDKEY OFF SHORTED
(Alarm)(Alarm)
This is a startup diagnostic for This is a startup diagnostic for the key line. This alarm occurs if the the key line. This alarm occurs if the key line (XA1 C/1) voltagekey line (XA1 C/1) voltage
drops below the threshold level of 9.5 V.drops below the threshold level of 9.5 V.
In such a case, check if the In such a case, check if the key input signal voltage drops below the key input signal voltage drops below the undervoltage thresholdundervoltage threshold
due to external loads, such as due to external loads, such as DC/DC converters starting up or relays or contactors energizingDC/DC converters starting up or relays or contactors energizing
or de-energizing.or de-energizing.
If no voltage transient is If no voltage transient is detected on the supply line and detected on the supply line and the alarm occurs every time the key isthe alarm occurs every time the key is
switched ON, the problem is in the switched ON, the problem is in the COMBIACX controller.COMBIACX controller.
222222 Magnetic brake driver errorMagnetic brake driver error
SMARTDRIVER KOSMARTDRIVER KO
(Alarm)(Alarm)
This alarm indicates that the built-in This alarm indicates that the built-in smart driver is open and not smart driver is open and not able to provide the able to provide the magneticmagnetic
brake positive.brake positive.
In such a case, check the harness to see In such a case, check the harness to see if the smart driver output XA1 B/1 if the smart driver output XA1 B/1 is shorted to –Batt.is shorted to –Batt.
If the output stays at If the output stays at a low level even a low level even when disconnecting the wire from the connector pin, thewhen disconnecting the wire from the connector pin, the
problem is in the COMBIACX controller.problem is in the COMBIACX controller.
223223 Short circuit main cont. or magn. brakeShort circuit main cont. or magn. brake
coilcoil
COIL SHOR. MC-EBCOIL SHOR. MC-EB
(Alarm)(Alarm)
This alarm occurs when there is a short This alarm occurs when there is a short circuit in the main contactor or magnetic brake coil.circuit in the main contactor or magnetic brake coil.
The typical root cause for this The typical root cause for this alarm is a problem in the alarm is a problem in the harness or in the coil. harness or in the coil. Check theCheck the
connections and wiring between the controller and coils.connections and wiring between the controller and coils.
If there are no external failures or problems, the problem is in the controller and it needs to beIf there are no external failures or problems, the problem is in the controller and it needs to be
replaced.replaced.
224224 Another device is inhibiting controllerAnother device is inhibiting controller
WAITING FOR NODEWAITING FOR NODE
(Warning)(Warning)
This warning indicates that the controller has This warning indicates that the controller has received a message from the CAN bus thatreceived a message from the CAN bus that
another controller or device in the another controller or device in the network has experienced a failure. As a network has experienced a failure. As a consequence, theconsequence, the
traction controller itself cannot operate, but has traction controller itself cannot operate, but has to wait for the to wait for the other controller or device toother controller or device to
recover from the failure.recover from the failure.
In case of this warning, check the In case of this warning, check the additional CAN bus devices for faults.additional CAN bus devices for faults.
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