DESCRIPTION The Malfunction Indicator Lamp (MIL) is used to indicate vehicle malfunctions detected by the ECM. The MIL operation can be checked visually. When the engine switch is first turned on (IG), the MIL should be illuminated and should then turn off after the engine is started. If the MIL remains illuminated or is not illuminated, conduct the following troubleshooting procedure using the Techstream. WIRING DIAGRAM ![]() PROCEDURE
(a) Perform troubleshooting in accordance with the table below.
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Check the communication between the Techstream and ECM. HINT: It can be checked using the "Engine" item of the Data List.
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: System Select / Health Check. (e) Check if any DTCs have been detected. Note down any DTCs.
HINT: Check for detected DTCs output from other ECUs which relate to the MIL.
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Combination Meter / Active Test / Check Engine Warning. Body Electrical > Combination Meter > Active Test
(e) Check the status of the MIL while performing the Active Test.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Camshaft Oil Control Valve(for Intake Side Of Bank 1): Installation
INSTALLATION PROCEDURE 1. INSTALL CAMSHAFT TIMING GEAR BOLT (a) Make sure that the No. 1 cylinder is at TDC/compression. HINT: Check that the cutout of the camshaft timing gear assembly is at the top and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain ...