Description

This DTC is set when the Engine Coolant Temperature (ECT) does not reach 70°C (158°F) despite sufficient engine warm-up time.

DTC No.

DTC Detection Conditions

Trouble Areas

P0128

Conditions (a), (b) and (c) met for 5 seconds (2 trip detection logic):

(a) Cold start

(b) Engine warmed up

(c) Engine Coolant Temperature (ECT) less than 70°C (158°F)

• Thermostat

• Cooling system

• ECM

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