LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 336 (Hybrid Vehicle Control System - Diagnostics) >> Circuit Inspection >> DTC P3100: HV Ecu Malfunction >> Circuit Description - DTC P3100 - Information Code 142 >> 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 ignition switch  . See STEP 1 - INSPECT IGNITION SWITCH CONTINUITY .
    1. NG: Replace ignition switch  . See step 4 of INSPECTION .
    2. NO: Go to   2 . 
  2. Check for +B short in wire harness between ignition switch ST2 terminal and HV ECU ST2 terminal  . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION .
    NOTE: The HV ECU ST circuit has +B short if battery voltage is supplied to the ST2 terminal.
    1. NG:  Repair or replace wire harness.
    2. OK:  Replace HV ECU.
scientia non olet · About LEMON Manuals