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Home >> Toyota >> 2006 >> Prius >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> P112 Hybrid Vehicle Control - DTC P0A94 - P3226, U0100 - U0146 >> DTC P0AA1-231 Hybrid Battery Positive Contractor Circuit Stuck Closed >> Inspection Procedure

Inspection Procedure

CAUTION:
  • Before inspecting the high-voltage system, take safety precautions to prevent electrical shocks, such as wearing insulated gloves and removing the service plug grip. After removing the service plug grip, put it in your pocket to prevent other technicians from reconnecting it while you are servicing the high-voltage system.
  • After disconnecting the service plug grip, wait for at least 5 minutes before touching any of the high-voltage connectors or terminals.

HINT:

At least 5 minutes are required to discharge the high-voltage condenser inside the inverter.

  1. INSPECT NO. 1 SYSTEM MAIN RELAY 
    1. Inspect the No. 1 system main relay (See INSPECTION ).

    NG : REPLACE NO. 1 SYSTEM MAIN RELAY 

    OK : REPLACE NO. 2 SYSTEM MAIN RELAY