What does code P1119 mean?

Q: What does code P1119 mean?

Engine Coolant Temperature Out of Range. P1119 on GM vehicles means the powertrain control module (PCM) has determined that the engine coolant temperature (ECT) signal is outside the range it expects for the current operating conditions. The PCM compares the ECT sensor voltage against a model of how fast the engine should warm up and flags the code when the reading is too low, too high, or changes erratically.

DTC codes / GM codes / P1119

P1119 · GMEngine Coolant Temperature Out of Range

P1119 on GM vehicles means the powertrain control module (PCM) has determined that the engine coolant temperature (ECT) signal is outside the range it expects for the current operating conditions. The PCM compares the ECT sensor voltage against a model of how fast the engine should warm up and flags the code when the reading is too low, too high, or changes erratically.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.