Toyota Tundra Service Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Engine Immobiliser System

DTC No.	Detection Item	Link
B2780	Push Switch / Key Unlock Warning Switch Malfunction
B2784	Antenna Coil Open / Short
B2793	Transponder Chip Malfunction
B2794	Unmatched Encryption Code
B2795	Unmatched Key Code
B2796	No Communication in Immobiliser System
B2797	Communication Malfunction No. 1
B2798	Communication Malfunction No. 2
B2799	Engine Immobiliser System Malfunction
B279A	Theft Deterrent System Communication Line High Fixation
B279C	Theft Deterrent System Presence Detection

Toyota Tundra Service Manual > Occupant Classification System: Front Occupant Classification Sensor RH Collision Detection (B1786)
DESCRIPTION DTC B1786 is set when the occupant classification ECU receives a collision detection signal, which is sent by the front occupant detection sensor RH when an accident occurs. DTC B1786 is also set when the front seat frame with adjuster RH is subjected to a strong impact, even if an actua ...

Toyota Tundra Owners Manual