Toyota Sienna Service Manual: Occupant classification ecu

Installation

1. INSTALL SEAT POSITION AIRBAG SENSOR  Check that the ignition switch is off. Check that the negative battery (-) terminal is disconnected. CAUTION: After disconnecting the neg ...

On-vehicle inspection

1. INSPECT OCCUPANT CLASSIFICATION ECU (VEHICLE NOT INVOLVED IN COLLISION)  Perform a diagnostic system check. 2. INSPECT OCCUPANT CLASSIFICATION ECU (VEHICLE INVOLVED IN COLLISION) ...

Other materials:

Short to B+ in Door System Communication Bus Malfunction/ Short to GND in Door System Communication Bus Malfunction
DTC B1214 Short to B+ in Door System Communication Bus Malfunction DTC B1215 Short to GND in Door System Communication Bus Malfunction DESCRIPTION DTCs B1214 and B1215 are output when a short to +B or the body ground occurs on the communication bus. Detecting this condition disables all the ...

System description
1. CRUISE CONTROL SYSTEM This system is controlled by the ECM, and is activated by the throttle position sensor and motor. The ECM controls the following functions: ON-OFF, - (COAST)/SET, + (ACCEL)/RES (RESUME), CANCEL, vehicle speed operation, motor output control, and overdrive control. & ...

Removal
HINT: Remove the RH by the same procedure as the LH side. 1. REMOVE REAR WHEEL 2. SEPARATE SKID CONTROL SENSOR WIRE (a) Disconnect the connector from the skid control sensor. 3. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY (for Drum Type) (a) Place matchmarks on the rear brake drum subassembly a ...