DESCRIPTION The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication. The slip indicator light blinks during VSC and/or TRAC operation. If a malfunction is detected, the slip indicator light comes on to warn the driver. Click here WIRING DIAGRAM  CAUTION / NOTICE / HINT NOTICE: When replacing the skid control ECU (brake actuator assembly), perform system variant learning and acceleration sensor zero point calibration. Click here
PROCEDURE
(a) Check if CAN communication system DTCs are output. Click here
(a) Check if the skid control ECU (brake actuator assembly) connector is securely connected. OK: The connector is securely connected.
(a) Check the battery voltage. Standard Voltage:
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List. ABS/VSC/TRAC
(d) Check the Techstream display condition of the slip indicator light.
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Toyota Tundra Service Manual > Airbag System: Seat Position Airbag Sensor Circuit Malfunction (B1653)
DESCRIPTION The seat position airbag sensor circuit consists of the airbag sensor assembly and seat position airbag sensor. DTC B1653 is stored when a malfunction is detected in the seat position airbag sensor circuit. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test ...
