DTC CHECK / CLEAR DTC CHECK/CLEAR (When Using TECHSTREAM) (a) Check for DTCs. (1) Turn the engine switch off. (2) Connect the Techstream to the DLC3. (3) Turn the engine switch on (IG). (4) Turn the Techstream on. (5) Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Trouble Codes. Chassis > ABS/VSC/TRAC/EPB > Trouble Codes(6) Check the details of the DTCs. Click here NOTICE: The vehicle stability control system outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the vehicle stability control system are output, refer to Diagnostic Trouble Code Chart for the relevant system.
(b) Clear the DTCs. (1) Turn the engine switch off. (2) Connect the Techstream to the DLC3. (3) Turn the engine switch on (IG). (4) Turn the Techstream on. (5) Operate the Techstream to clear the codes. Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Trouble Codes. Chassis > ABS/VSC/TRAC/EPB > Clear DTCs(6) Press the DTC clear button. END OF DTC CHECK/CLEAR (a) Turn the engine switch on (IG). (b) Check that the ABS warning, slip indicator and brake hold operated indicator* lights go off within approximately 3 seconds of turning the engine switch on (IG). *: The brake hold switch (electric parking brake switch assembly) is pressed under the following vehicle conditions.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: Hybrid/EV Battery Positive Contactor Circuit Stuck Closed (P0AA000)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a stuck closed malfunction of a system main relay on the HV battery positive (+) terminal side. The cause of this malfunction may be one of the following: Inverter voltage sensor (VH) internal circuit malfunction Voltage sens ...