ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT AIR PUMP ASSEMBLY (a) Start the engine and warm it up. (b) Turn the ignition switch off.
(d) Connect the Techstream to the DLC3. (e) Turn the ignition switch to ON and turn the Techstream on. (f) Enter the following menus: Powertrain / Engine and ECT / Utility / Secondary Air Injection Check / Manual Mode / AIR PUMP 1: ON, ASV1: OPEN, AIR PUMP 2: ON, ASV2: OPEN. HINT: When Manual Mode is selected, the Techstream initialization (atmospheric pressure measurement) is performed automatically. The initialization takes 10 seconds. After the initialization, AIR PUMP and ASV operation can be selected. (g) Measure the current while the air pump assembly is turning. Standard Current:
(h) Turn the ignition switch to off. NOTICE:
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Toyota Tundra Service Manual > Occupant Classification System: Trouble in Passenger Airbag ON/OFF Indicator
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 ...