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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 P3140: Interlock Malfunction >> Circuit Description - DTC P3140 - Information Code 351 >> 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 installation condition of inverter terminal cover and sensor cover. 
    1. NG:  Install them correctly.
    2. OK:  Go to step  2.
  2. Check continuity of wire harness between interlock switch No. 1 terminal and HV ECU ILK terminal and interlock switch No. 2 terminal and inverter CVRSW terminal  . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION .

    OK: Continuity: Less than 1 Ω 

    1. NG:  Repair or replace wire harness.
    2. OK:  Go to step  3.
  3. Check continuity between inverter CVRSW terminal and body ground  . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION .

    OK: Continuity: Less than 1 Ω 

    1. NG:  Replace converter & inverter assembly.
    2. OK:  Confirm that interlock switch is defective and replace it. Check interlock switch. See SERVICE PLUG .
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