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Fuel economy ECU in a truck is experiencing Flash (stored program flash) ECC Error. Link to microcontroller manual for this ECU is:
https://www.nxp.com/docs/en/data-sheet/MC9S12GRMV1.pdf
The problem was duplicated on a bench.
How to recover from Flash ECC Error? In Flash ECC interrupt...
Please consider CAN communication network in a heavy vehicle:
Steering Electronic Control Unit (ECU) has CAN 2.0B. It doesn't have J1939 stack.
All other ECUs in this network are implemented with J1939 stack.
Can CAN 2.0B coexist with J1939?
What code changes are needed in steering ECU and...
Consider an Electronic Control Unit (ECU) mounted in a vehicle. Let's say this ECU has Three CAN channels as follows:
CAN 1
CAN 2
CAN 3
Do these Three CAN channels have to be on different CAN networks? Another words, for example, CAN 1 and CAN 2 are never on the same CAN network?
A
It...
How does messaging work in CAN FD? How are PGNs and SPNs defined for CAN FD?
For Extended CAN, SAE J1939-71 defines PGNs and SPNs. All the PGNs and SPNs defined in SAE J1939-71 don't apply to CAN FD? For example, in SAE J1939-71 PGN 65267 is Vehicle Position. There are two SPN's in this...
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