It is impossible to communication via CAN.
As the CAN Communication error, it is occurred to the battery shorted or the ground shorted for CAN high & Low.
and then it is set The DTC of “ CAN BUS off”. It is used to validate wire errors.
To distinguish CAN error and CAN BUS off, During operating RKE Lock/Unlock of Fob key, the CAN error is set but CAN BUS off is not set.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
To check CAN Communication status | 1. The contact state for connector. 2. Input power for smart key unit. (PIC IMMO) 3. In the driver door open status ( It is not SMK sleep mode), Check the battery short or ground short for CAN High & Low . 4. Smart key Unit (PIC UNIT) |
Enable Conditions |
•
At the state of input battery voltage into a SMK 1. CAN High&Low Battery Short 2. CAN Hogh&Low Ground Short | |
Threshold Value |
•
CAN High&Low : Battery short : the voltage is 12V. Ground short : the voltage is 0V. | |
Diagnostic Time |
•
After occurring DTC, it is detected immediately | |
DTC Erasing Time |
•
After solving fault, DTC is deleted immediately |
