Several control units are applied to electronically controlled vehicles. These units perform each control with informations from various sensors. Thus, sharing signal information from sensors is needed, so CAN communication type whose communication speed is high and insensitive to electrical noise by spark generation is adopted to controlling power-train(TCM, ECM, CLUSTER,VDC,4WD,EAS,SAS, EPS)
CAN communication consists of CAN BUS HIGH, CAN BUS LOW and two 120Ω resistances in circuit.
TCM set this code If not receive CAN message form 4WD.(MIL OFF)
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check signal |
•
CAN communication line open of 4WD side
•
CAN communication line short of 4WD side
•
TCCM
•
Mechatronics(E-module + Valvebody) |
Enable Conditions |
•
0.5 second after IG ON
•
Battery voltage > 9V | |
Threshold Value |
•
No message from ECM
•
Input Not available data | |
Diagnostic Time |
•
0.56 second | |
Fail Safe |
•
(Priority : 2) |
