DESCRIPTION If a malfunction in the SFI system is detected, the operation of VSC and TRAC is prohibited by the fail-safe function. When the signals from the engine are received normally, fail-safe control is canceled.
PROCEDURE
(a) Check if SFI system DTCs are output.
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Toyota Tundra Service Manual > Forward Recognition Camera System: Lost Communication with ECM / PCM "A" (U0100,U0101,U0123,U0126,U0129,U0142,U0155)
DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U0100 Lost Communication with ECM / PCM "A" After the ignition switch is turned to ON for 3 seconds or more, when the vehicle is being drive ...
