DESCRIPTION When an incorrect ECM, main body ECU (multiplex network body ECU), skid control ECU (brake actuator assembly) or AVS ECU (Absorber control ECU) (w/ Adaptive Variable Suspension System) is installed after the assist map has been written to the power steering ECU (rack and pinion power steering gear assembly), DTC C1582 is stored because the information stored in the power steering ECU (rack and pinion power steering gear assembly) does not match the vehicle specifications.
CAUTION / NOTICE / HINT NOTICE: If the rack and pinion power steering gear assembly has been replaced, perform assist map writing and torque sensor zero point calibration. Click here HINT: Related parts store information necessary for assist map writing. Related Part:
PROCEDURE
(a) Check for DTCs. Click here
(a) Check if the part below has been replaced with an incorrect part in the past.
NOTICE: When removing the related part to check it, be sure to follow the appropriate procedures and precautions.
(b) When DTC C1582 is output and parts have not been exchanged, replace the power steering ECU (rack and pinion power steering gear assembly) as it may have an internal malfunction. NOTICE: If the rack and pinion power steering gear assembly has been replaced, perform assist map writing. Click here
(a) Replace the related part with one that has the correct part number.
(a) Check for DTCs. Chassis > EMPS > Trouble Codes
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Switch Housing: Installation
INSTALLATION PROCEDURE 1. INSTALL STEERING WHEEL SWITCH HOUSING (a) When reusing the steering wheel switch housing: (1) Using pliers, expand the clamp and temporarily install the steering wheel switch housing as shown in the illustration. (2) While holding the clamp expanded, engage the claw as show ...