This is DTC which is related with communication error between PDM and other units.
※ Body CAN communication Control Units : IPM(Intelligent integrated Platform Module), CLU(Cluster), PDM(Power Distribution Module), SMK(Smart Key), RPAS(Rear Parking Assist System).
※ LIN communication Control Units : IPM(Intelligent integrated Platform Module), Alarm Control Siren Assy.
*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 IPM 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. IPM CAN High/Low Lines open together 3. Check CLU (Including the related fuses) 4. CLU CAN High/Low Lines open |
Enable Conditions |
•
IPM power on | |
Threshold Value |
•
No message from CLU to IPM 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)
