CAN-bus failure DCU
START
Fix the
configuration
compile and
reload it
Open the
cover and reset
the DCU
Disconnect
power from
the WECS
DCU software is
probably
overloaded.
Change the
configuration
Check flat cable,
DCU and SMU
boards. Change the
broken one
Connect CAN
terminal resistor.
If they exist,
disconnect pins
31-31 and 65-66
Change the
DCU board
Find the broken
cable/unit in
the CAN
network
Connect pins
31-32 and
65-66
CAN network
probably OK
Is
resistance
31-32 and 65-66
≈
120 ohm?
Is
resistance 31-65
and 32-66
< 1ohm?
DCU
CAN LED
blinking?
DVRX
configuration
OK?
No
Yes
No
Yes
No
No
Yes
Is
resistance 31-32
= 60 ohm?
Yes
No
DCU CAN
LED not
blinking
Fig 08-13
3208130342
34SG-200414-04
Operating Troubles
Содержание 41508
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Страница 12: ...Appendix B Welding Precautions 200147...
Страница 22: ...Fuel Lubricating Oil Cooling Water 34SG 200303 03...
Страница 29: ...A Ap pp pe en nd di ix x A A E En nv vi ir ro on nm me en nt ta al l H Ha az za ar rd ds s 2 20 00 03 32 21 1...
Страница 73: ...Maintenance Tools 32 9801...
Страница 115: ...Engine Block with Bearings Cylinder and Oil Sump 34SG 9701...