DESCRIPTION
The occupant classification ECU detects the state of the front seat inner belt assembly RH and load sensor when the front passenger side seat is occupied with the ignition switch ON. If the front passenger side seat belt is not fastened, the front passenger side seat belt warning light on the combination meter assembly blinks. If the seat belt is fastened, the warning light goes off.
WIRING DIAGRAM
PROCEDURE
1. |
CHECK DTC OUTPUT (OCCUPANT CLASSIFICATION SYSTEM) |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
Result
Result |
Proceed to |
---|---|
DTCs are not output |
A |
DTCs are output |
B |
B |
GO TO OCCUPANT CLASSIFICATION SYSTEM |
|
2. |
CHECK DTC OUTPUT (AIRBAG SYSTEM) |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
Result
Result |
Proceed to |
---|---|
DTCs are not output |
A |
DTCs are output |
B |
B |
GO TO AIRBAG SYSTEM |
|
3. |
READ VALUE USING TECHSTREAM (PASSENGER BUCKLE SW) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Occupant Detection / Data List.
(e) Read the Data List according to the display on the Techstream.
Occupant Detection
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Passenger Buckle SW |
Front passenger side seat belt buckle switch/Unset, Set or NG |
Unset: Front passenger side seat belt unfastened Set: Front passenger side seat belt fastened NG: Data not determined |
- |
Result |
Proceed to |
---|---|
Unset or Set is displayed on the Techstream according to the front passenger seat belt condition |
A |
Unset or Set is not displayed correctly on the Techstream according to the front passenger seat belt condition |
B |
NG is displayed on the Techstream |
C |
B |
REPLACE FRONT SEAT INNER BELT ASSEMBLY RH |
C |
REPLACE OCCUPANT CLASSIFICATION ECU |
|
4. |
READ VALUE USING TECHSTREAM (RIGHT SIDE BUCKLE SW) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / SRS Airbag / Data List.
(e) Read the Data List according to the display on the Techstream.
SRS Airbag
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Right side Buckle SW |
Front passenger side seat belt buckle switch/Unset, Set or NG |
Unset: Front passenger side seat belt unfastened Set: Front passenger side seat belt fastened NG: Data not determined |
- |
Result |
Proceed to |
---|---|
Unset or Set is displayed on the Techstream according to the front passenger seat belt condition |
A |
|
B |
A |
USE SIMULATION METHOD TO CHECK |
B |
REPLACE AIRBAG SENSOR ASSEMBLY |
Inspection
INSPECTION
PROCEDURE
1. INSPECT MAGNET CLUTCH ASSEMBLY
(a) Inspect the magnet clutch assembly.
Text in Illustration
*a
Component without harness connected
(Magnet Clutch Assembly)
...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Dynamic Radar Cruise Control System
DTC No.
Detection Item
Link
C1A02
Vehicle Information Not Obtained
C1A0A
Front Radar Sensor Region Code Mismatch
...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedures to troubleshoot the steering lock system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...