2006 Pontiac Solstice L4-2.4L VIN BFACTORY OEM SERVICE PROCEDURE

Scan Tool Data Definitions



Scan Tool Data Definitions
ECT
The scan tool displays -40°C to +151°C (-40°F to +304°F). The engine coolant temperature (ECT) sensor is mounted in the coolant stream. The engine control module (ECM) applies 5 volts to the ECT sensor signal circuit. The sensor is a thermistor which changes internal resistance as temperature changes. When the sensor is cold and the internal resistance is high, the ECM monitors a high signal voltage and interprets it as a cold engine. As the sensor warms and the internal resistance decreases, the voltage signal decreases and the ECM interprets the lower voltage as a warm engine.
FC Relay 1 Command
The cooling fan relay is commanded ON or OFF by the ECM.
FC Relay 2 Command
The cooling fan relay is commanded ON or OFF by the ECM.
FC Relay 1 Circuit Status
The scan tool displays OK or Fault. This parameter indicates the status for the state of the driver circuit for this device.
FC Relay 2 Circuit Status
The scan tool displays OK or Fault. This parameter indicates the status for the state of the driver circuit for this device.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.