Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2007SILVERADO 1500 2WD V8-5.3LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL DATA DEFINITIONS (FPCM)
2007 Chevrolet Silverado 1500 2WD V8-5.3L
Scan Tool Data Definitions (FPCM)
2007 Chevrolet Silverado 1500 2WD V8-5.3LSECTION Scan Tool Data Definitions (FPCM)
Scan Tool Data Definitions (FPCM)
The Scan Tool Data Definitions contains a brief description of all the fuel pump control module (FPCM) parameters available on the scan tool.
Desired Fuel Rail Pressure
- The scan tool displays the desired fuel rail pressure measured in kPa or psi.
Fuel Pump Command
- The scan tool displays On or Off. This is the state of the fuel pump, as monitored by the FPCM.
Fuel Pump Signal Command
- The scan tool displays %. This is the state of the fuel pump signal, as monitored by the FPCM.
Fuel Rail Pressure Sensor
- The scan tool displays current fuel rail pressure measured in kPa or psi. This is the current pressure of the fuel rail, as monitored by the FPCM.
Fuel Rail Pressure Sensor
- The scan tool displays the current fuel rail pressure measured in Volts. This is the current pressure of the fuel rail, as monitored by the FPCM.
Ignition 1 Signal
- The scan tool displays the ignition 1 signal in volts, as monitored by the FPCM.
LT Fuel Pump Trim
- The scan tool displays the long term fuel pump trim.
ST Fuel Pump Trim
- The scan tool displays the short term fuel pump trim.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.