CAN communication Line consists of Low and High line so that each ECU can communicate their information for each other.
In order to adopt ABS/ESP ECU control for SPAS, SPAS and ABS/ESP ECU communicate each other.
The SPAS ECU sends the request messages, such as ABS/ESP normal control, to the ABS/ESP through CAN bus line for SPAS.
The SPAS ECU check the CAN communication line for normal control and if the ABS/ESP message is not received for a 0.5 second, this DTC is set.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Status for receving CAN message from ABS/ESP ECU. | 1. Open CAN high / Low line 2. ABS/ESP ECU |
Enable Conditions |
•
IG ON. | |
Threshold vlaue |
•
No CAN signal from ABS/ESP ECU | |
Diagnostic Time |
•
No CAN signal for more than 0.5 sec. | |
DTC Erasing Time |
•
- |
