Description

This DTC is set when the Engine Coolant Temperature (ECT) does not reach 75°C (167°F) despite sufficient engine warm-up time having elapsed.

DTC No.

DTC Detection Condition

Trouble Area

P0128

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

(a) Cold start

(b) Engine warmed up

(c) ECT less than 75°C (167°F)

• Thermostat

• Cooling system

• ECM

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