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 communicates data but selectively reads required data only.
DTC Logic
DTC DETECTION LOGIC
DTC | Display item | Malfunction detected condition | Possible cause |
U1000 | CAN COMM CIRCUIT | Low tire pressure warning control unit is not communicating CAN communication signal for 2 seconds or more. |
|
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION
With CONSULT
Is DTC “U1000” detected? YES >> Proceed to WT-41, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Proceed to LAN-30, "CAN COMMUNICATION SYSTEM : CAN System Specification Chart".
Diagnosis system (BCM) (with intelligent key system)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
Direct Diagnostic Mode
Description
Ecu Identification
The BCM part number is displayed.
Self Diagnostic ...
Changing engine oil
Changing engine oil
Park the vehicle on a level surface and apply
the parking brake.
Start the engine and let it idle until it reaches
operating temperature, then turn it off.
Remove the oil filler cap B by turning it
counterclockwise.
Place a large drain pan u ...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
...