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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 336 (Hybrid Vehicle Control System - Diagnostics) >> Circuit Inspection >> DTC P3125: Converter & Inverter Assembly Malfunction >> Circuit Description - DTC P3125 - Information Codes 266, 267, 268, 269, 270 >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check for open, short and +B short in wire harness between HV ECU VB and MIVG terminals and converter & inverter assembly VB and M-GINV terminal  . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION .
    NOTE: Confirm that there is no open circuit in the wire harness. If the voltage between the HV ECU VB or MIVG terminal and body ground is always more than 5V with the ignition ON, the inverter voltage signal circuit has +B short.
    1. NG:  Repair or replace wire harness.
    2. OK:  Go to step  2.
  2. Is there DTC P3100 being output? 
    1. YES:  Check applicable DTC.
    2. NO:  Replace converter & inverter assembly.
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