This is DTC which is related with communication error between IPM and other units.
(※ Control Units : IPM(Inter Panel Module), FAM(Front Area Module), PDM(Power Distribution Module), DDM(Drive Door Module), ADM(Assist Door Module), CLU(Cluster), PSM(Power Seat Module), SCM(Steering Control Module), RAM(Rear Area Module), SMK(Smart Key)
The steering wheel lock/unlock state of ESCL and the required data when EMS(Engine Management System) controls starting are sent to PDM by the serial communication line.
*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 code is outputted when ground circuit is shorted to battery.
(During no power supply from PDM to ESCL)
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
ESCL ground output line check (by voltage monitoring) |
•
Short to power in ESCL ground circuit |
Enable Conditions |
•
No power supply from PDM to ESCL | |
Threshold Value |
•
ESCL ground circuit is shorted to power (7V and above) | |
Diagnostic Time |
•
Immediately | |
DTC Erasing Time |
•
DTC is erased immediately after trouble fixed. (Under no power supply from PDM to ESCL state) |
Fig 1) ESCL Data Signal Waveform
