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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 P3001: HV Battery Ecu Malfunction >> Circuit Description - DTC P3001 - Information Code 129 >> 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. Is DTC of battery ECU being output  ? See DIAGNOSTIC TROUBLE CODE CHART .
    1. YES  : Check DTC of battery ECU.
    2. NO:  Replace the battery ECU. See DIAGNOSTIC TROUBLE CODE CHART .
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