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Home >> Toyota >> 2004 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 532 (Hybrid Control System - Diagnosis) >> DTC P0A1F/123: Battery Energy Control Module >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

After repairing the malfunction, restart the system (to turn the READY lamp ON) and recheck the DTC.

  1. READ OUTPUT DTC (HV BATTERY) 
  1. Connect the hand-held tester to the DLC3.
  2. Turn the power switch ON (IG).
  3. Turn the hand-held tester ON.
  4. On the hand-held tester, enter the following menus: DIAGNOSIS / OBD/MOBD / HV BATTERY / DTC INFO / TROUBLE CODES.
  5. Read DTCs.

Result: DTCs are output 

YES: GO TO RELEVANT DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART  ) 

NO 

REPLACE BATTERY ECU ASSY (See BATTERY ECU ASSY ) 

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