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e. Read DTCs. Result RESULT REFERENCE B: GO TO DTC CHART A: REPLACE THROTTLE BODY ASSEMBLY (See REMOVAL ) DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL DESCRIPTION Refer to DTC P0115 . DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE CHART MONITOR DESCRIPTION The resistance of the ECT sensor varies in proportion to the actual ECT. The ECT supplies a constant voltage to Example: The ECT is 0°C (32°F) at engine start. After about 1 minute running time, the ECT sensor still indicates that the MONITOR STRATEGY MONITOR STRATEGY Result Proceed to P0121 is output A P0121 and other DTCs are output B DTC DTC Detection Condition Trouble Area P0125 Engine Coolant Temperature ECT sensor Cooling system Thermostat
2009 Toyota Tundra 2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra
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