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XJ8 Base
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Diagnostic Trouble Code Identification
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DTC P0125: Engine Coolant Temperature Sensor Response (For Closed Loop Fuel Control)
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Possible Causes
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Possible Causes
Low coolant level.
Contaminated coolant.
Engine thermostat failure.
ECT sensor to ECM sensing circuit high resistance when hot.
ECT sensor to ECM sensing circuit intermittent high resistance.