DTC SUMMARY MALFUNCTION DESCRIPTION When the power switch is turned from on (READY) to off, the hybrid vehicle control ECU detect that the high-voltage capacitor inside the inverter with converter assembly is not discharged. The cause of this malfunction may be one of the following: Inverter voltage sensor (VH) internal circuit malfunction
DESCRIPTION For a description of the inverter. Click here
HINT: When the power switch is turned from on (READY) to off, the MG ECU discharges voltage stored in the inverter by allowing current to flow to motor (MG2) without generating torque. When the vehicle is normal, VH voltage becomes approximately 0 V after discharging. If VH voltage exceeds a specified value, this DTC is stored. Related Data List
CONFIRMATION DRIVING PATTERN HINT: After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure. Click here
WIRING DIAGRAM Refer to the wiring diagram for the shut down signal circuit. Click here CAUTION / NOTICE / HINT CAUTION:
NOTICE: After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Click here PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Enter the following menus: Powertrain / Hybrid Control and Motor Generator / Trouble Codes. (d) Check for DTCs. Powertrain > Hybrid Control > Trouble Codes Powertrain > Motor Generator > Trouble Codes
HINT:
(e) Turn the power switch off.
Click here HINT: If the "Shut Down Signal Circuit" inspection results are normal, perform the next step.
|
Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Gasoline Model): Precaution
PRECAUTION NOTICE FOR INITIALIZATION NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System See Procedure Lane Departure Alert System (w/ Steering Control) Pre-collision System Intelligent Clearance Sonar S ...