Lexus NX: Part of HV Gate Blocking Range/Performance (P321F-319)

Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (hybrid / Battery Control) / Hybrid Control System / Part of HV Gate Blocking Range/Performance (P321F-319)

DESCRIPTION

Refer to the description for DTC P321E-318.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P321F-319

Part of HV Gate Blocking Range/Performance

An open or ground short in the HV gate block signal circuit when the gate is operating.

When the HV gate block function check is performed (when the power switch is turned from on (READY) to off), the inverter voltage (VH) drops and current flows in the inverter. (Any of the generator (MG1), motor (MG2) or rear motor (MGR) is malfunctioning.)

(1 trip detection logic)

Inverter with converter assembly

Does not come on

Master Warning Light:

Comes on

Related Data List

DTC No.

Data List

P321F-319

  • VH-Voltage after Boosting
  • Ready Signal
  • Emergency Shutdown

CAUTION / NOTICE / HINT

HINT:

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.

  1. Wait for 30 seconds or more with the vehicle stopped, the power switch on (READY) and the shift lever in P. Then turn the power switch off and wait for 60 seconds or more.

PROCEDURE

1.

CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

(e) Turn the power switch off.

P321E-318 is not output.

REPLACE INVERTER WITH CONVERTER ASSEMBLY

P321E-318 is also output.

GO TO DTC CHART (P321E-318)

READ NEXT:

 MG-ECU Power Relay Intermittent Circuit (P324E-788)

DESCRIPTION If the MG ECU, which is built into in the inverter with converter assembly, is reset due to a problem with the power source in the inverter, the hybrid vehicle control ECU will stored this

 Lost Communication with ECM / PCM "A" (U0100-530,U0126-735,U0129-527,U0129-528,U0140-146,U0151-763,U0164-827,U1107-436)

DESCRIPTION The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the ECM, skid control ECU assembly, power steering ECU assembly, main body ECU, airbag ECU a

 Lost Communication with Drive Motor Control Module "A" (U0110-159,U0110-656,U0110-657)

DESCRIPTION For a description of the inverter. Click here The MG ECU, which is built into in the inverter with converter assembly, controls motor (MG2) based on commands from the hybrid vehicle cont

SEE MORE:

 ACC Signal Circuit

DESCRIPTION This circuit detects whether the power switch is on (ACC) or off, and sends this information to the main body ECU (multiplex network body ECU). WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedu

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: If the main body ECU (multiplex network body ECU) is replaced, refer to the Smart Access System with Push-button Start (for Entry Function). Click here HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are list

© 2016-2025 Copyright www.lexunx.com