DESCRIPTION The skid control ECU (brake actuator assembly) stores this DTC if malfunctions are found in a circuit inside the ECU by self diagnosis.
PROCEDURE
(a) Replace the skid control ECU (brake actuator assembly). Click here HINT: This DTC is output when the skid control ECU (brake actuator assembly) detects a malfunction in an internal circuit. (b) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Utility / Test Mode. (c) Perform system variant learning and acceleration sensor zero point calibration. Click here Chassis > ABS/VSC/TRAC/EPB > Utility
(d) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Utility / Signal Check. (e) Perform the sensor check using the Test Mode (Signal Check) procedure. Click here Chassis > ABS/VSC/TRAC/EPB > Utility
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Heated Steering Wheel System(for Hv Model): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the heated steering wheel system. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary battery voltage with the power switch off. Standard voltage: 11 to 14 V (Power switch off) ...