DESCRIPTION The passenger airbag ON/OFF indicator consists of the center airbag sensor, occupant detection ECU, hazard warning switch assembly, and 4 occupant classification sensors. This system controls the passenger airbag deployment according to the occupancy condition of the front passenger seat, and also displays those detected conditions. WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Turn the ignition switch off. (b) Loosen the 4 installation bolts of the front seat RH. (c) Tighten the 4 installation bolts of the front seat RH to the specified torque.
Torque: 37 N·m {377 kgf·cm, 27 ft·lbf}
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON, and wait for at least 60 seconds. (c) Using the Techstream, perform the zero point calibration (Click here
OK: Zero point calibration is completed using tester.
(a) Turn the ignition switch to ON, and wait for at least 60 seconds. (b) Using the Techstream, read the "Data List" (Click here
OK: Display changed correctly according to operation of buckle switch.
(a) Fasten the front passenger side seat belt. (b) Turn the ignition switch to ON, and wait for at least 60 seconds. (c) Using the Techstream, read the "Data List" (Click here
(a) Turn the ignition switch off. (b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (c) Replace the front seat frame with adjuster RH (Click here
HINT: Perform the inspection using parts from a normal vehicle when possible.
(a) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON, and wait for at least 60 seconds. (d) Using the Techstream, perform the zero point calibration (Click here
(a) Using the Techstream, perform the sensitivity check (Click here
Standard range: 27 to 33 kg (59.5 to 72.8 lb)
(a) Disconnect the connectors from the occupant classification ECU and front seat inner belt RH. (b) Check that the connectors (on the occupant classification ECU side and front seat inner belt RH side) are not damaged. OK: Connectors are not deformed or damaged.
(a) Turn the ignition switch off. (b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds. (c) Replace the front seat inner belt RH (Click here
(d) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON, and wait for at least 60 seconds. (c) Using the Techstream, perform the zero point calibration (Click here
(a) Using the Techstream, perform the sensitivity check (Click here
Standard range: 27 to 33 kg (59.5 to 72.8 lb)
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Toyota Tundra Service Manual > Dynamic Radar Cruise Control System: Vehicle Information Not Obtained (C1A02)
DESCRIPTION When a new millimeter wave radar sensor assembly is installed, it receives vehicle specification information (destination, steering wheel position, 2WD or 4WD, etc.) from the main body ECU (multiplex network body ECU) and stores the information. DTC C1A02 is stored when the millimeter wa ...