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 communicate data but selectively reads required data only
DTC Logic
DTC DETECTION LOGIC
DTC |
Display item |
Malfunction detected condition |
Possible cause |
U1000 | CAN COMM CIRCUIT | EPS control unit is not transmitting/receiving CAN communication signal for 2 seconds or more. |
|
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.DTC REPRODUCTION PROCEDURE
With CONSULT
Is DTC “U1000” detected? YES >> Proceed to diagnosis procedure. Refer to STC-27, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Proceed to LAN-17, "Trouble Diagnosis Flow Chart".
P0014 EVT control
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0014
EXH/V TIM CONT-B1
(″B″ Camshaft position - timing over-advanced
or system performance bank 1)
There is a gap between angle of ...
Fuel-filler door
Opener operation
Opener operation
The fuel-filler lid release is located below the
instrument panel. To open the fuel-filler lid, pull
the release. To lock, close the fuel-filler lid securely.
Fuel-filler cap
WARNING
Gasoline is extremely flammable and
highly explosive ...
U0140 lost communication (BCM)
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U0140
LOST COMM (BCM)
(Lost Communication With Body Control Module)
When the ignition switch is ON, TCM is unable to receive the CAN
communications ...