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Home >> Toyota >> 2003 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 768 (Brakes - Abs With EBD & BA & TRAC & VSC (Diagnostics)) >> DTC C1201/51: Engine Control System Malfunction >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC (FOR ENGINE CONTROL SYSTEM) 
    1. Check if the normal system code is recorded for the EFI system (see DIAGNOSTIC TROUBLE CODES CHECK/CLEAR , DIAGNOSTIC TROUBLE CODES CHECK/CLEAR ).

      Result: 

      RESULT DESCRIPTION

      Normal system code A
      Trouble code B
    1. B: REPAIR ENGINE CONTROL SYSTEM ACCORDING TO OUTPUT CODE (SEE  DIAGNOSTIC TROUBLE CODE CHART  ,  DIAGNOSTIC TROUBLE CODE CHART  ) 
    2. A: GO TO NEXT STEP 

      REPLACE  ECM (1GR-FE)  ,  ECM (2UZ-FE)