DESCRIPTION The headlight ECU sub-assembly controls the high beam headlights. WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Check the illumination of each high beam lights.
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / HL AutoLeveling / Active Test. (e) Perform the Active Test according to the display on the Techstream. Body Electrical > HL AutoLeveling > Active Test
OK: High beam headlight turn on.
(a) Remove each headlight ECU sub-assembly, interchange the headlight assembly LH with RH and connect the connectors. Click here
(a) Check that the high beam headlight operates normally. OK: High beam headlight operates normally.
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Active Test. (e) Perform the Active Test according to the display on the Techstream. Body Electrical > HL AutoLeveling (Sub) > Active Test
OK: High beam headlight turn on.
(a) Remove each headlight ECU sub-assembly, interchange the headlight assembly RH with LH and connect the connectors. Click here
(a) Check that the high beam headlight operates normally. OK: High beam headlight operates normally.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Automatic Transaxle System: Pressure Control Solenoid "H" Circuit Short to Ground or Open (P281614)
DESCRIPTION Refer to DTC P281612. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P281614 Pressure Control Solenoid "H" Circuit Short to Ground or Open While the vehicle is being driven so that gear changes occur, a short to ground or open is detected in the so ...