1.BCM
2.SJB
This is DTC which is related with communication error between BCM and other units.
? Body CAN communication Control Units : BCM(Body Control Module), CLU(Cluster), SMK(Smart Key), SJB(Smart Junction Box).
*¹ CAN (Controller Area Network) : CAN is serial bus communication type which links not only communication system but also control units each other.
*² LIN (Local Interconnect Network) : LIN is serial communication type which is used in electrical control system. (This is less expensive.)
This code is outputted when BCM can't receive data from SJB by CAN Line for 6 sec.
Item
Detecting Condition
Possible Cause
DTC Strategy
CAN Comm. Check (BCM ? SJB)
IG ON
No receiving CAN Data owing to BUS OFF (Check CAN BUS ERROR DTC is being.)
BCM CAN High/Low Lines open together
Check SJB (Including the related fuses)
SJB CAN High/Low Lines open
Enable Conditions
BCM power on
Threshold Value
No message from SJB to BCM for 10 sec.
Diagnostic Time
10 sec.
DTC Erasing Time
DTC is erased immediately after receiving data from FAM
Fig 1) CAN Low/High Signal Waveform
Fig 2) CAN BUS VOLTAGE LEVEL (LOW SPEED CAN)