DESCRIPTION If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation. This DTC is stored when the +BS terminal voltage deviates due to a malfunction in a power supply or charging system circuit such as the battery or alternator circuit, etc.
WIRING DIAGRAM Refer to DTC C1241. Click here CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Check the battery voltage. Standard Voltage:
(b) Disconnect the A28 skid control ECU (brake actuator assembly) connector. (c) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (d) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Turn the engine switch off. (b) Reconnect the A28 skid control ECU (brake actuator assembly) connector. (c) Clear the DTCs. Chassis > ABS/VSC/TRAC/EPB > Clear DTCs(d) Turn the engine switch off. (e) Start the engine. (f) Perform a road test. (g) Check if the same DTC is output. Chassis > ABS/VSC/TRAC/EPB > Trouble Codes
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Tire Pressure Warning System(for Hv Model): Diagnosis System
DIAGNOSIS SYSTEM CHECK WARNING LIGHT NOTICE: When there is a problem with the tire pressure warning system, the tire pressure warning light blinks at 0.5 second intervals, and illuminates after 1 minute. When the malfunction has been corrected, the tire pressure warning light goes off. When the tire ...