Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Check Mode Procedure

CHECK MODE PROCEDURE

CHECK MODE (SIGNAL CHECK): DTC CHECK

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / SRS Airbag / Utility / Signal Check.

NOTICE:

Select Signal Check on the Techstream to clear the DTCs (both current and history).

HINT:

• DTCs can be detected more sensitively in check mode than in normal diagnosis mode.
• Perform check mode inspection when a malfunction in a squib circuit is suspected even after the normal system code is output through normal diagnosis mode inspection.