Standard Ignition TX181 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Aveo and G3

Standard Ignition TX181 is a direct-fit engine coolant temperature sensor for select Chevrolet Aveo, Chevrolet Aveo5, and Pontiac G3 applications. It uses a round female plug-in connector and brass construction to support reliable coolant temperature signal transfer in demanding engine bay conditions.

Key Features

• Direct-fit OE replacement for straightforward installation
• Brass sensor body with brass and plastic finish
• Round female connector with 1 connector and 2 male pin terminals
• 12-volt electrical specification
• Built for use in high-heat, high-vibration cooling system environments
• Standard Ignition TX181 coolant temperature sensor for accurate engine temperature input

Product Details

This engine coolant temperature sensor monitors coolant temperature and sends that information to the vehicle’s engine management system. On 2009-2011 Chevrolet Aveo and 2009-2011 Chevrolet Aveo5 models, as well as 2009-2010 Pontiac G3 models, it is located on the thermostat housing. Standard Ignition TX181 is built as an OE-style replacement to match the original attachment method and connector layout for these applications.

This part cross-references 2CTS0131 and 5S12094 for the same application.

Common Symptoms It Can Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or rough cold operation caused by inaccurate temperature input
• Cooling fan behavior that does not match engine temperature
• Check engine light related to coolant temperature sensor performance
• Fuel mixture issues tied to faulty engine temperature data

Installation Notes

Verify the sensor location on the thermostat housing before replacement. Confirm connector shape, terminal count, and attachment method match the original part on your Chevrolet Aveo, Chevrolet Aveo5, or Pontiac G3. Inspect the connector and surrounding cooling system components for corrosion, coolant residue, or damaged terminals before installing Standard Ignition TX181.

Quality Assurance

Standard Ignition manufactures this coolant temperature sensor with controlled production processes and extensive testing to support dependable operation. The OE-replacement design and material selection are intended to provide consistent performance in normal automotive service.