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Home >> Lexus >> 2010 >> HS 250h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control (Diagnostic Codes (P0343-747 - P0A78-282) >> Hybrid Control System >> DTC P0A1F-150: Battery Energy Control Module >> Procedure

DTC P0A1F-150: Battery Energy Control Module: Procedure

  1. CHECK AUXILIARY BATTERY. Refer to PROCEDURE - Step 1 

    NG → CHARGE OR REPLACE AUXILIARY BATTERY 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (IGCT VOLTAGE). Refer to PROCEDURE - Step 2 

    NG → See step   3 

    OK → See step   6 

  3. CHECK FUSE (IGCT, IGCT NO. 2). Refer to PROCEDURE - Step 3 

    NG → REPLACE FUSE (IGCT, IGCT NO. 2) 

    OK: Go to next step 

  4. CHECK RELAY (IGCT). Refer to PROCEDURE - Step 4 

    NG → REPLACE RELAY (IGCT) 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (IGCT RELAY - BATTERY SMART UNIT). Refer to PROCEDURE - Step 5 

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → CHECK AND REPAIR POWER SOURCE CIRCUIT 

  6. REPLACE BATTERY SMART UNIT. Refer to COMPONENTS 
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