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.)
Scheme 191
DTC Description
| Type | Condition | Remark |
|---|---|---|
| 1 | CANH Circuit Open | B1602 is presented when IC detects one of errors among 7 types under normal communication condition. According to operation condition, some of module which are connected to CAN line may not detect B1602. Also, B1603 can be detected together. |
| 2 | CANL Circuit Open | |
| 3 | CANH Circuit Short to Power | |
| 4 | CANL Circuit Short to Power | |
| 5 | CANH Circuit Short to Ground | |
| 6 | CANL Circuit Short to Ground | |
| 7 | CANH and CANL Short to each other |
DTC DESCRIPTION CHART
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.)
Scheme 192
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), 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))
Case1: After short between SCM CAN Low Line and High Line, short to ground together.
Case2: After short between SCM CAN Low Line and High Line, short to power together.
*This code is occurred when It is not possible to transmit data by CAN Line in those way of Software and Hardware. But, It is possible to receive data by CAN Line.
This code reports BUS OFF status when data transmit error count number is over 255. The purpose is to verify the status of CAN controller and CAN communication line when error is detected.
According to operation condition, some of module which are connected to CAN line may not detect B1603.
Also, B1602 coincides with B1603 at all times.
| CAUTION | Difference between CAN ERROR and CAN BUS ERROR CAN Error: MIL On, CAN Bus Error: No MIL |
IMS (Integrated Memory System) is a system which can memorize the position of power seat (PTM), tilt/telescope handle (SCM), side mirror (DDM/ADM) by position sensor and restores them to a previous position. (Memory function is not allowed during driving for safety reason)
SCM sets this code when amount of change of the tilt motor position sensor is little than 12 edge (6 pulse) for 2 sec. This means that tilt motor/sensor stuck due to open or short in circuit or external cause (compulsive restriction)
IMS (Integrated Memory System) is a system which can memorize the position of power seat (PTM), tilt/telescope handle (SCM), side mirror (DDM/ADM) by position sensor and restores them to a previous position. (Memory function is not allowed during driving for safety reason)
SCM sets this code when amount of change of the telescopic motor position sensor is little than 12 edge (6 pulse) for 2 sec. This means that telescopic motor/sensor stuck due to open or short in circuit or external cause (compulsive restriction)