DESCRIPTION The following DTCs are stored when a malfunction occurs in the skid control ECU (brake actuator assembly).
CAUTION / NOTICE / HINT NOTICE: When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch (electric parking brake switch assembly) as the parking brake indicator light (red) blinks when the engine switch is first turned on (IG). PROCEDURE
(a) Replace the skid control ECU (brake actuator assembly). Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Tire Pressure Warning System(for Hv Model): Vehicle Speed Information Communication Lost (C2178)
DESCRIPTION The tire pressure warning ECU and receiver receives signals from the combination meter assembly via CAN communication. If a malfunction occurs in this communication line, DTC C2178 is output. DTC No. Detection Item DTC Detection Condition Trouble Area Note C2178 Vehicle Speed Information ...
