HomeDTC LookupBuick › P1119
Buick • powertrain

Buick P1119

ECT Signal Out Of Rage With TFT Sensor

What P1119 means on a Buick

On Buick vehicles, P1119 is logged when the ECU detects a fault in the powertrain: “ECT Signal Out Of Rage With TFT Sensor”. P1119 is a manufacturer-specific Buick code (the "1" after the letter marks an OEM-defined code), so its meaning applies to Buick and may differ on other makes.

Common causes & symptoms

Typical triggers for a powertrain code like P1119 include faulty or ageing sensors, wiring/connector faults, a clogged or removed component, or a value drifting outside the ECU's expected window. Symptoms range from a check-engine light only, to limp mode, rough running, higher consumption or failed emissions tests.

P1119 and ECU tuning

When a Buick has had hardware changed for off-road/motorsport use (for example a removed DPF or EGR), the related monitor must be disabled in the ECU map or the code re-appears. Softechpro Solutions performs DPF/EGR/AdBlue/DTC off and recalculates the checksum, so codes like P1119 stay cleared after the flash. Genuine faults should always be repaired, not just hidden.

Related Buick codes

Need to clear P1119 after a delete?

Softechpro Solutions does DPF/EGR/AdBlue/DTC off + checksum for 260+ ECU families — from €98.99/mo.

See pricing   Ask on WhatsApp

← All Buick codesDTC lookup tool