Toyota Tacoma (2015-2018) Service Manual: Rear Airbag Sensor(for Access Cab)

Front Occupant Classification Sensor LH Circuit Malfunction (B1780)

DESCRIPTION The occupant classification sensor front LH circuit consists of the occupant detection ECU and the occupant classification sensor front LH. DTC B1780 is set when a malfunction is detec ...

Components

COMPONENTS ILLUSTRATION ...

Other materials:

Operation Check
OPERATION CHECK 1. CHECK FUNCTION (a) Check that the key reminder warning buzzer sounds. (1) With the driver side door closed, insert the key into the ignition key cylinder and then turn the key to LOCK or ACC. (2) Check that the buzzer sounds intermittently when the driver side door is open ...

Precaution
PRECAUTION 1. PRECAUTIONS WHEN USING TECHSTREAM (a) When using the Techstream with the engine switch off to troubleshoot: Connect the Techstream to the DLC3, and turn a courtesy light switch on and off at 1.5 second or less intervals until communication between the Techstream and vehicle begin ...

Lost Communication with ECM / PCM "A" (U0100,U0122)
DESCRIPTION This DTC is output when communication is lost with the skid control ECU (brake actuator assembly) or ECM. DTC No. Detection Item DTC Detection Condition Trouble Area U0100 Lost Communication with ECM / PCM " ...