Toyota Tundra Service Manual: Diagnostic Trouble Code Chart

Data List / Active Test

Door Courtesy Switch Circuit

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Toyota Tundra Service Manual > Trailer Brake Control System: Gain Rocker Switch (+) Circuit (C14A1,C14A2)
DESCRIPTION DTC No. Detection Item INF Code DTC Detection Condition Trouble Area C14A1 Gain Rocker Switch (+) Circuit 21 With the ignition switch turned to ON and the IG terminal voltage from 11 to 14 V, an open circuit occurs continuously in the GAIN (+) selection button internal circuit or wire ha ...