MTU 12 V 4000 M23F Operating Instructions Manual page 112

187 – AL CAN1 Error Passive
CAN controller 1 error
Yellow alarm; warning
Cause
Missing associated node, minor
disruptions or temporary bus
overload.
188 – AL CAN2 Bus Off
CAN controller 2 is in "Bus-Off" status
Yellow alarm; automatic changeover to CAN 1
Cause
Short circuit, massive
interference or Baud rate
incompatibility.
189 – AL CAN2 Error Passive
CAN controller 2 error
Yellow alarm; warning
Cause
Missing associated node, minor
disruptions or temporary bus
overload.
190 – AL EMU Parameter Not Supported
Yellow alarm; warning
Cause
EMU parameters are not
supported. ==> Incompatibility
112 | Troubleshooting | MS150068/01E 2014-01
ZKP-Number: 2.0500.687
Corrective action
1. Check CAN bus for short circuit, rectify short circuit as
necessary.
2. Check shielding, improve shielding as necessary.
3. Contact Service.
ZKP-Number: 2.0500.688
Corrective action
1. Check CAN bus for short circuit, rectify short circuit as
necessary.
2. Check shielding, improve shielding as necessary.
3. Contact Service.
ZKP-Number: 2.0500.689
Corrective action
1. Check CAN bus for short circuit, rectify short circuit as
necessary.
2. Check shielding, improve shielding as necessary.
3. Contact Service.
ZKP-Number: 2.0500.690
Corrective action
u Contact Service.