Toyota RAV4 (XA40) 2013-2018 Service Manual: Occupant classification ecu
Components
On-vehicle inspection
- Inspect occupant classification ecu (vehicle not involved in collision)
- Perform a diagnostic system check (see page rs- 236).
- Inspect occupant classification ecu (vehicle involved in collision)
- Perform a diagnostic system check (see page rs- 236).
- Even if the airbag was not deployed, check if there is any damage to the occupant classification ecu. If there are any defects as mentioned below, replace the occupant classification ecu with a new one:
- Cracks, dents or chips on the case.
- Cracks or other damage to the connector.
Caution:
Be sure to follow the correct removal and installation procedures.
Removal
- Disconnect cable from negative battery terminal
Caution:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
- Remove front seat assembly (for manual seat) (see page se-11)
- Remove occupant classification ecu
- Disconnect the 2 connectors from the occupant classification ecu.
- Using a screwdriver, remove the occupant classification ecu
Installation
- Install occupant classification ecu
- Check that the ignition switch is off.
- Check that the negative battery (-) terminal is disconnected.
Caution:
After disconnecting the negative battery terminal, wait for at least 90 seconds before starting the operation.
- Install the occupant classification ecu.
- Connect the 2 connectors to the occupant classification ecu.
Notice:
- If the occupant classification ecu has been dropped, or there are any cracks, dents or other defects in the case or connector, replace it with a new one.
- When installing the occupant classification ecu, be careful that the srs wiring does not interfere with other parts and that it is not pinched between other parts.
- Install front seat assembly (for manual seat) (see page se-23)
- Connect cable to negative battery terminal
- Inspect slide adjuster lock (for manual seat)
- Inspect seat heater operation (w/ seat heater system)
- Inspect srs warning light
- Inspect the srs warning light (see page rs-245).
Seat position sensor
Components
On-vehicle inspection
Check seat position sensor (vehicle not
involved in collision)
Perform a diagnostic system check (see page rs-
49).
Check seat position sensor ...
Other system
...
Other materials:
Trouble in passenger airbag on / off indicator
Description
The occupant classification system detects the front passenger seat condition
and then indicates whether
the front passenger airbag is activated or not through the passenger airbag on /
off indicator
illumination.
The passenger airbag on / off indicator illumination changes dep ...
Pressure control solenoid "d" electrical (shift solenoid valve slt)
Description
Refer to dtc p2714 (see page ax-91).
Monitor description
When an open or short in the shift solenoid valve slt circuit is detected,
the ecm interprets this as a fault.
The ecm will illuminate the mil and store the dtc.
Monitor strategy
Typical enabling conditions
...
Diagnosis system
Description
The center airbag sensor controls the functions of the
supplemental restraint system (srs) on the vehicle.
Data of the srs can be read in the data link connector
3 (dlc3) of the vehicle. When the system seems to be
malfunctioning, use the intelligent tester to check for a
ma ...
