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)
After insert the fob into the fob holder, press SSB button. Then, the communication state between the fob and the immobilizer is inputted to PDM.
*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 the immobilizer data circuit is shorted to ground.
(In this case, it is not possible to get authorization although the fob is in the holder.)
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Immobilizer data line check (by voltage monitoring) |
•
Short to ground in immobilizer data circuit |
Enable Conditions |
•
The communication state between the fob and the fob holder when SSB button is pushed. (The fob is in the holder.) | |
Threshold Value |
•
Short to ground in immobilizer data circuit (2V and below) | |
Diagnostic Time |
•
Immediately | |
DTC Erasing Time |
•
DTC is erased immediately after trouble fixed. (After communication recovery) |
Fig 1) IMMO_CLOCK & IMMO_DATE signal waveform
