DESCRIPTION
When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes intermittently, an open in one of the wires of a CAN bus branch line is suspected.
HINT:
If there is an ECU or sensor whose connection status changes intermittently while checking the "Communication Bus Check" screen, there may be an open circuit in one of the wires of a branch line of an ECU or sensor in the bus. If an open occurs in one of the wires of a CAN branch line, it may interfere with the communication of other ECUs or sensors resulting in an incorrect state being displayed.
Symptom |
Trouble Area |
---|---|
There is an ECU or sensor that is indicated as not communicating on the "Communication Bus Check" screen or whose connection status on the "Communication Bus Check" screen changes intermittently. |
One side of CAN branch line is open, or output signals are incomplete.
|
CAUTION / NOTICE / HINT
NOTICE:
Click here
DTC check procedure: Turn the ignition switch ON and wait at least approximately 60 seconds.
Click here
PROCEDURE
1. |
CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH LINE |
(a) Based on the vehicle equipment and specifications, confirm the systems that use CAN communication.
Click here
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Using the Techstream, perform "CAN Bus Check".
Click here
(f) Observe the screen for approximately 2 minutes to check for ECUs and sensors that are displayed as not communicating.
(g) Perform the inspection as specified in the Problem Symptoms Table for the ECUs or sensors that are not communicating.
NEXT | ![]() |
GO TO CORRESPONDING COMMUNICATION STOP MODE |
Toyota CH-R Service Manual > Continuously Variable Transaxle System: Acceleration Sensor Malfunction (P1586)
DESCRIPTION
The ECM determines the vehicle inclination based on a signal from the airbag
sensor assembly (yaw rate and acceleration sensor). If a malfunction of the airbag
sensor assembly (yaw rate and acceleration sensor) is determined based on a malfunction
signal from the skid control ECU ...
Toyota CH-R Service Manual > Park Assist / Monitoring: Blind Spot Monitor Sensor
Components
COMPONENTS
ILLUSTRATION
*1
BLIND SPOT MONITOR BRACKET LH
*2
BLIND SPOT MONITOR BRACKET RH
*3
BLIND SPOT MONITOR SENSOR LH
*4
BLIND SPOT MONITOR SENSOR RH
N*m (kgf ...