DESCRIPTION
If 2 or more ECUs and/or sensors do not appear on the intelligent tester "Communication Bus Check" screen, one side of the CAN branch wire may be open. (One side of the CAN-H [branch wire] / CAN-L [branch wire] of the ECU and/or sensor is open.)
Symptom |
Trouble Area |
2 or more ECUs and/or sensors do not appear on the intelligent tester "Communication Bus Check" screen. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
HINT: Perform the following inspection for the ECUs (sensors) which are not displayed on the intelligent tester. If the malfunction cannot be identified, then perform the following inspections for the ECUs (sensors) connected to CAN communication.
1 CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH WIRE
HINT: If any ECUs or sensors, other than those from which the connectors were disconnected in the previous step, are not displayed on the "Communication Bus Check" screen, reconnect the disconnected connectors and repeat the procedures [*1], [*2], and [*3].
(e) Perform the communication stop mode check for the ECUs and sensors which correspond to the disconnected connectors.
GO TO CORRESPONDING COMMUNICATION STOP MODE
Initialization
Items to initialize
The following items must be initialized for normal system operation
after such cases as the battery being reconnected, or maintenance
being performed on the vehicle.
Item
When to initialize
Power sliding door
(if equipped)
After reconnecting o ...
Shift Solenoid "D" Performance (Shift Solenoid
Valve S4)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to detect the actual gear
position (1st, 2nd, 3rd, 4th
or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory
to detect mechanical
problems of the shift solenoid valves, valve b ...
AVC-LAN Circuit
DESCRIPTION
Each unit of the navigation system connected to the AVC-LAN (communication
bus) transfers the signal of
each switch by communication.
When a short to +B or short to ground occurs in this AVC-LAN, the navigation
system will not function
normally as the communication is discontin ...