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Toyota Truck
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2005
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Highlander 2WD L4-2.4L (2AZ-FE)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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DTC 51
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Engine Control System Malfunction
Engine Control System Malfunction
DTC 51 ENGINE CONTROL SYSTEM MALFUNCTION
CIRCUIT DESCRIPTION
DTC Detecting Condition:
If trouble occurs in the engine control system, the skid control ECU prohibits TRAC and VSC control.
Step 1:
INSPECTION PROCEDURE