DESCRIPTION
The occupant detection ECU receives signals from the acceleration sensor (airbag sensor assembly) and skid control ECU via CAN communication.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
B1798 |
Yaw Rate Sensor Module Malfunction |
Acceleration signals are abnormal |
|
B1799 |
Vehicle Stability Control ECU Malfunction |
Vehicle speed signal from skid control ECU is abnormal |
|
CAUTION / NOTICE / HINT
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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HINT:
PROCEDURE
1. |
CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM) |
(a) Check for vehicle stability control system DTCs.
Click here
OK:
DTCs are not output.
NG |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
2. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
OK:
CAN communication system is functioning normally.
HINT:
Refer to CAN Bus Check in CAN Communication System.
Click here
NG |
GO TO CAN COMMUNICATION SYSTEM |
|
3. |
CHECK DTC (HEALTH CHECK) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and turn the Techstream on.
(d) Enter the following menus: System Select / Health Check.
OK:
DTCs are not output.
OK |
USE SIMULATION METHOD TO CHECK |
NG |
GO TO OTHER DIAGNOSTIC TROUBLE CODE CHART |
Toyota CH-R Service Manual > Electric Parking Brake System: Precaution
PRECAUTION
IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine Swi ...
Toyota CH-R Service Manual > Lin Communication System: LIN Communication Bus Malfunction (B2325)
DESCRIPTION
If the main body ECU (multiplex network body ECU) detects a communication error
with an ECU connected to the door bus lines for 7 seconds or more, DTC B2325 will
be stored.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...