Although the CAN communication proceeds normally, B1602 may be set because of some errors in the CAN driver IC. This DTC is used as CAN error to validate wire errors.
According to operation condition, some of module which are connected to CAN line may not detect B1602. Also, B1603 can be detected together.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
CAN Communication Check | 1. CAN HIGH Circuit short to power/ground, open 2. CAN LOW Circuit short to power/ground, open 3. CAN HIGH and CAN LOW short to each other 4. Contact status of the connector caution Under "Sleep" condition, CAN High Line is 0V and CAN Low Line is battery voltage. | |
Enable Conditions |
•
IG key "ON" | ||
Threshold Value | case 1 |
•
CAN HIGH Circuit short to power | |
case 2 |
•
CAN HIGH Circuit short to ground | ||
case 3 |
•
CAN HIGH Circuit open | ||
case 4 |
•
CAN LOW Circuit short to power | ||
case 5 |
•
CAN LOW Circuit short to ground | ||
case 6 |
•
CAN LOW Circuit open | ||
case 7 |
•
CAN HIGH and CAN LOW short to each other | ||
•
Short to power : When 12V voltage is detected.
•
Short to ground : when 0V voltage is detected. | |||
Diagnostic Time |
•
2 sec | ||
DTC Erasing Time |
•
DTC is erased immediately after trouble fixed | ||
