DESCRIPTION The forward recognition camera receives vehicle speed tolerance signals from the combination meter assembly. If the combination meter assembly detects a vehicle speed tolerance malfunction signal, it informs the forward recognition camera via CAN communication, and DTC C1AA2 is stored.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Perform Operation Check of the meter/gauge system. Click here
HINT: Check the meter function by referring to Operation Check for the combination meter assembly.
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes. (e) Clear the DTCs. (f) Make sure that the DTC detection conditions are met. HINT: If the following procedure is not performed, the previously output DTC cannot be detected. (g) Check for DTCs.
(a) Replace the forward recognition camera. Click here (b) Adjust the forward recognition camera. Click here
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes. (e) Clear the DTCs. (f) Make sure that the DTC detection conditions are met. HINT: If the following procedure is not performed, the previously output DTC cannot be detected. (g) Check for DTCs.
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Toyota Tundra Service Manual > Occupant Classification System: Rear Occupant Classification Sensor RH Collision Detection (B1788)
DESCRIPTION DTC B1788 is set when the occupant classification ECU receives a collision detection signal, which is sent by the occupant detection sensor rear RH when an accident occurs. DTC B1788 is also set when the front seat frame with adjuster RH is subjected to a strong impact, even if an actual ...