DESCRIPTION The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication. If any of the following is detected, the ABS warning light remains on:
HINT: In some cases, the Techstream cannot be used when the skid control ECU (brake actuator assembly) is abnormal. WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE:
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:
(b) Make sure that there is no looseness at the locking part and the connecting part of the connector. OK: The connector is securely connected. (c) Disconnect the A57 skid control ECU (brake actuator assembly) connector. (d) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (e) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Reconnect the A57 skid control ECU (brake actuator assembly) connector. (b) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List. ABS/VSC/TRAC
(c) Check the Techstream display condition of the ABS warning light.
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Toyota Tundra Service Manual > Sfi System: Throttle Actuator Control System - Stuck Open (P2111,P2112)
DESCRIPTION The throttle actuator is operated by the ECM, and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted on the throttle with motor body assembly. The TP sensor provides feedback to the E ...