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:

Inspection
INSPECTION PROCEDURE 1. INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY (a) Check the operation of the front seat cushion heater assembly. (1) Apply battery voltage and check the operation of the front seat cushion heater assembly. OK: Connection ...

Check Bus 2 Lines for Short Circuit
DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Detection Item Trouble Area Resi ...

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for both the LH and RH sides. The procedure described below is for the LH side. PROCEDURE 1. REMOVE FRONT NO. 1 WHEEL OPENING EXTENSION PAD Click here 2. SEPARATE FRONT FENDER LINER (a) Remove the 2 ...