DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE: After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory". Click here PROCEDURE
(a) Check if CAN communication system DTCs are output. Click here
(a) Select the Active Test on the Techstream. Click here
(b) Check the operating condition of the brake warning light / yellow (minor malfunction) when operating it using the Techstream.
(a) Perform the Active Test of the combination meter assembly (meter CPU) using the Techstream. Click here
(b) Check the combination meter assembly. OK: The brake warning light / yellow (minor malfunction) turns on or off in accordance with Techstream operation.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Gasoline Model): Open in Bus 4 Main Bus Line
DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 22 (CA2H) and 7 (CA2L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. Symptom Trouble Area Resistance between terminals 22 (CA2H) and 7 (CA2L) of the central gateway ...
