DTC B1788 Rear Occupant Classification Sensor RH Collision Detection
DESCRIPTION
DTC B1788 is output when the occupant classification ECU receives a collision detection signal sent by the rear occupant classification sensor RH if an accident occurs.
DTC B1788 is also output when the front seat assembly RH is subjected to a strong impact, even if an actual accident does not occur.
However, when the occupant classification ECU outputs a collision detection signal, even if the vehicle is not in a collision, DTC B1788 can be cleared by "Zero point calibration" and "Sensitivity check".
Therefore, if DTC B1788 is output, first perform "Zero point calibration" and "Sensitivity check".
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
B1788 |
|
|
INSPECTION PROCEDURE
1 PERFORM ZERO POINT CALIBRATION
OK: "COMPLETED" is displayed


2 PERFORM SENSITIVITY CHECK
Standard value: 27 to 33 kg (59.52 to 72.75 lb)


3 CHECK DTC
OK: DTC B1788 is not output. HINT: Codes other than DTC B1788 may be output at this time, but they are not related to this check.


4 REPLACE FRONT SEAT ASSEMBLY RH
HINT: Perform the inspection using parts from a normal vehicle if possible.

5 PERFORM ZERO POINT CALIBRATION
OK: "COMPLETED" is displayed.


6 PERFORM SENSITIVITY CHECK
Standard value: 27 to 33 kg (59.52 to 72.75 lb)


7 CHECK DTC
HINT: First clear DTCs stored in the occupant classification ECU and then in the center airbag sensor assembly.
OK: DTC B1788 is not output. HINT: Codes other than DTC B1788 may be output at this time, but they are not related to this check.


8 REPLACE OCCUPANT CLASSIFICATION ECU

9 PERFORM ZERO POINT CALIBRATION
OK: "COMPLETED" is displayed.

10 PERFORM SENSITIVITY CHECK
Standard value: 27 to 33 kg (59.52 to 72.75 lb)

END
Rear Occupant Classification Sensor LH Collision
Detection
Center Airbag Sensor Assembly Communication
Circuit MalfunctionABS Warning Light does not Come ON
WIRING DIAGRAM
See page BC-47.
INSPECTION PROCEDURE
1 INSPECT ABS WARNING LIGHT
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Check that the ABS warning light comes on.
OK:
ABS warning light comes on.
HINT:
If troubleshooting has be ...
Removal
1. Drain automatic transaxle fluid
(a) Remove the drain plug, gasket and drain ATF.
(b) Install a new gasket and the drain plug.
Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf)
2. Drain transfer oil (for 4wd)
Hint:
(see page tf-8)
3. Remove front wheel
4. REMOVE FRONT AXLE HUB LH NUT
(a) Us ...
High Temperature
DTC 62-47 High Temperature
DTC 63-47 High Temperature
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
62-47
Sensor detects that CD unit temperature is high. (Over
80C)
Radio receiver
63-47
Sensor detects that CD unit temperat ...