DESCRIPTION
The airbag sensor assembly and occupant detection ECU communicate via CAN communication.
When the occupant detection ECU stores DTC B1771, B1780, B1782, B1795, B1798, B1799, U0125 or U0129, the airbag sensor assembly receives this information and stores DTC B1650/32.
When the occupant detection ECU stores DTC B1785 or B1787, the airbag sensor assembly receives this information and stores DTC B165A/32.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Test Mode / Check Mode |
---|---|---|---|---|
B1650/32 |
Occupant Classification System Malfunction |
The occupant detection ECU has stored DTC B1771, B1780, B1782, B1795, B1798, B1799, U0125 or U0129. |
Occupant classification system |
Does not apply to test/check mode |
B165A/32 |
Occupant Detection Sensor Zero Point Calibration Incomplete |
The occupant detection ECU has stored DTC B1785 or B1787. |
Occupant classification system |
Does not apply to test/check mode |
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.
Click here
PROCEDURE
1. |
CHECK DTC (OCCUPANT CLASSIFICATION SYSTEM) |
(a) Check for occupant classification system DTCs.
Click here
OK:
DTCs are not output.
NG | ![]() |
GO TO OCCUPANT CLASSIFICATION SYSTEM |
|
2. |
CLEAR DTC (AIRBAG SYSTEM) |
(a) Clear the DTCs stored in memory.
Click here
NEXT | ![]() |
END |
Toyota CH-R Service Manual > Navigation System: Dtc Check / Clear
DTC CHECK / CLEAR
CHECK DTC (CHECK USING TECHSTREAM)
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG) and wait for 90 seconds.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Navigation System / Trouble
Codes.
Body Electrical > Naviga ...
Toyota CH-R Service Manual > Smart Key System(for Start Function): Power Source Mode does not Change to ON (IG and ACC)
DESCRIPTION
If any of the following operations are performed, the certification ECU (smart
key ECU assembly) receives a signal, and changes the power source mode.
With the electrical key transmitter sub-assembly in the cabin, the engine
switch is pressed.
When the transmitter batt ...