Componet Location
General Description
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,SAS, EPS). CAN communication consists of CAN BUS HIGH, CAN BUS LOW and two 120? resistances in circuit.
DTC Description
If the 4WD ECU doesn't get SAS signals from SAS moduel, it sets U0126.
DTC Detecting Condition
Item | Detecting Condition | Possible cause |
DTC Strategy | CAN Signal Check
| Poor connection Open or short in CAN communication line Error in SAS module |
Enable conditions | IG " ON" or Engine " ON "
|
Threshold value | It can't get some CAN signals from SAS module.
|
Detecting time | 2 seconds
|
Diagnostic Circuit Diagram
CAN Signal : high & low