ENGINE (DIAGNOSTICS)(H4DOTC) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL

DTC DETECTING CONDITION:

Detected when two consecutive driving cycles with fault occur.

TROUBLE SYMPTOM:

Engine does not return to idle.

CAUTION:

After repairing or replacing the defective part, perform the Clear Memory Mode and Inspection Mode .

WIRING DIAGRAM:

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1.CHECK ANY OTHER DTC ON DISPLAY.

Is any other DTC displayed?

Check the appropriate DTC using the “List of Diagnostic Trouble Code (DTC)”.

NOTE:

In this case, it is not necessary to inspect DTC P0125.

2.CHECK ENGINE COOLING SYSTEM.

NOTE:

Check the following items.

• Thermostat open stuck

• Coolant level

• Engine coolant freeze

• Tire diameter

Is there any fault in engine cooling system?

Replace the thermostat.

Replace the engine coolant temperature sensor.