Component Location
General Description
All 13 units which consists of the Body Electrical Control System are linked by CAN*¹ line.
They are IPM(Inter Panel Module), FAM(Front Area Module), PDM(Power Distribution Module), DDM(Drive Door Module), ADM(Assist Door Module), ECW(Electronic Control Wiper), CLU(Cluster), MFSW(Multi Function Switch), PSM(Power Seat Module), SCM(Steering Control Module), PTM(Power Trunk Lid Module), FBWS(Front Back Warning System), DATC(Dual Auto Temperature Control Module).
*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.)
DTC Description
This code is outputted when the serial communication protocol is broken between DDM and RRDM by open, short or noise.
DTC Detecting Condition
Item | Detecting Condition | Possible Cause |
DTC Strategy | SERIAL Communication Check
| RRDM Local Comm. Line open
RRDM Local Comm. Line short to battery/ground
|
Enable Conditions | IG "ON" state after engine start
|
Threshold Value | Open, Short to battery or Short to ground
Protocol Error by noise
|
Diagnostic Time | Immediately (DTC status memorized)
|
DTC Erasing Time | DTC is erased immediately after trouble fixed (In case of the past error, perform DTC erasing procedure.)
|
Diagnostic Circuit Diagram