Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC Description
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting cond |
| U0101 | LOST COMM (TCM) (Lost communication with TCM) | When ECM is not transmitting or receiving CAN communication signal of OBD (emission-related diagnosis) with TCM for 2 seconds or more. |
POSSIBLE CAUSE
CAN communication line between TCM and ECM
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Is DTC detected? YES >> Proceed to EC-169, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
Perform the trouble diagnosis for CAN communication system. Refer to LAN-17, "Trouble Diagnosis Flow Chart".
Power supply and ground circuit
U1001 CAN comm circuitDoor mirror glass
Removal and Installation
REMOVAL
Release the metal clips and pawls that retain the door mirror
glass using a suitable tool, disconnect the harness connectors
(A) (if equipped) from the door mirror glass and remove.
Metal clip
: Pawl
INSTALLATION
Installation is in the rever ...
Component parts
Component Parts Location
Steering column assembly
No.
Component
Function
1
ABS actuator and electric unit (control unit)
Transmits the following signal to EPS control unit via CAN
communication.
Vehicle speed signal (ABS)
...
Symptom diagnosi
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH troubleshooting - engine noise
Valve mechanism
Intake and exhaust valve
Water pump
Timing chain
Drive belt
Rotation mechanism
Tappet noise
Camshaft bearing noise
&nb ...