CAN communication Line consists of Low and High line so that each ECU can communicate their information for each other.
Body Electrical is controlled by communicating Each ECU through the CAN line,
When SPAS ECU detects short to ground or battery in CAN High / Low circuit simultaneously, SPAS ECU sets this DTC. This DTC is only set when SPAS detects that there is/are fault in CAN high / low communication line together. Absolutely CAN communication is impossible.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
CAN BUS LINE Check | 1. Poor Connection 2. Short to power or ground in CAN high / low simultaneously 3. Faulty SPAS |
Enable Conditions |
•
Right after SPAS ECU receives battery voltage | |
Threshold vlaue |
•
After CAN message is transferred but no Tx signal detection
•
No CAN message | |
Diagnostic Time |
•
Faulty is detected for more than 0.5 sec. | |
DTC Erasing Time |
•
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