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