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 MANUALSCHEVROLET2001METRO L4-079 1.3L VIN 2 MFIREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLANTILOCK BRAKES / TRACTION CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL DATA DEFINITIONS
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFI
Scan Tool Data Definitions
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFISECTION Scan Tool Data Definitions
The Data Display function contains lists of ABS and ETS data parameters. A brief description of all ABS and ETS data parameters available on the scan tool are listed below. The list is arranged in alphabetical order.
ABS Relay Command: The scan tool displays On or Off - The scan tool displays On during vehicle operation. The EBCM commands the ABS relay On when Ignition positive voltage is present.
ABS Warning Lamp: The scan tool displays Off or On - The scan tool displays whether or not the ABS warning indicator is currently being commanded ON.
Battery Voltage: The scan tool displays 0 to 17 Volts - The scan tool displays the level of battery voltage at the EBCM.
Brake Switch: The scan tool displays Off or On The scan tool displays the state of the brake switch.
Brake Warning Lamp Cmd: The scan tool displays On or Off - The scan tool displays the commanded state of the red brake warning indicator.
Ignition Voltage: The scan tool displays 0 - 17 Volts The scan tool displays the level of ignition positive voltage at the EBCM.
Left Front ABS Motor: The scan tool displays Forward or Reverse - The scan tool displays the direction in which the left front ABS motor is being commanded.
Left Front ABS Motor Cmd: The scan tool displays Amps - The scan tool displays the amount of commanded current to the left front ABS motor.
Left Front ABS Motor Fd: The scan tool displays Amps - The scan tool displays the amount of feedback current from the left front ABS motor.
Left Front Solenoid Cmd: The scan tool displays On or Off - The scan tool displays the commanded state of the left front solenoid.
Left Front Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the left front wheel.
Left Rear Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the left rear wheel.
Rear ABS Motor Cmd: The scan tool displays Amps - The scan tool displays the amount of commanded current to the rear ABS motor.
Rear ABS Motor Feedback: The scan tool displays Amps - The scan tool displays the amount of feedback current from the rear ABS motor.
Right Front ABS Motor: The scan tool displays Forward or Reverse - The scan tool displays the direction in which the right front ABS motor is being commanded.
Right Front ABS Motor Cmd: The scan tool displays Amps - The scan tool displays the amount of commanded current to the right front ABS motor.
Right Front ABS Motor Fd: The scan tool displays Amps - The scan tool displays the amount of feedback current from the right front ABS motor.
Right Front Solenoid Cmd: The scan tool displays On or Off - The scan tool displays the commanded state of the right front solenoid.
Right Front Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the right front wheel.
Right Rear Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the right rear wheel.
Steering Wheel Position: The scan tool displays 0 to 5 Volts - The scan tool displays the position of the steering wheel in volts.
Vehicle Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - This parameter displays the vehicle speed. The Powertrain Control Module (PCM) receives reference pulses from the Vehicle Speed Sensor (VSS) and converts them into km/h or MPH for display.
ABS Relay Command: The scan tool displays On or Off - The scan tool displays On during vehicle operation. The EBCM commands the ABS relay On when Ignition positive voltage is present.
ABS Warning Lamp: The scan tool displays Off or On - The scan tool displays whether or not the ABS warning indicator is currently being commanded ON.
Battery Voltage: The scan tool displays 0 to 17 Volts - The scan tool displays the level of battery voltage at the EBCM.
Brake Switch: The scan tool displays Off or On The scan tool displays the state of the brake switch.
Brake Warning Lamp Cmd: The scan tool displays On or Off - The scan tool displays the commanded state of the red brake warning indicator.
Ignition Voltage: The scan tool displays 0 - 17 Volts The scan tool displays the level of ignition positive voltage at the EBCM.
Left Front ABS Motor: The scan tool displays Forward or Reverse - The scan tool displays the direction in which the left front ABS motor is being commanded.
Left Front ABS Motor Cmd: The scan tool displays Amps - The scan tool displays the amount of commanded current to the left front ABS motor.
Left Front ABS Motor Fd: The scan tool displays Amps - The scan tool displays the amount of feedback current from the left front ABS motor.
Left Front Solenoid Cmd: The scan tool displays On or Off - The scan tool displays the commanded state of the left front solenoid.
Left Front Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the left front wheel.
Left Rear Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the left rear wheel.
Rear ABS Motor Cmd: The scan tool displays Amps - The scan tool displays the amount of commanded current to the rear ABS motor.
Rear ABS Motor Feedback: The scan tool displays Amps - The scan tool displays the amount of feedback current from the rear ABS motor.
Right Front ABS Motor: The scan tool displays Forward or Reverse - The scan tool displays the direction in which the right front ABS motor is being commanded.
Right Front ABS Motor Cmd: The scan tool displays Amps - The scan tool displays the amount of commanded current to the right front ABS motor.
Right Front ABS Motor Fd: The scan tool displays Amps - The scan tool displays the amount of feedback current from the right front ABS motor.
Right Front Solenoid Cmd: The scan tool displays On or Off - The scan tool displays the commanded state of the right front solenoid.
Right Front Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the right front wheel.
Right Rear Wheel Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - The scan tool displays the actual speed of the right rear wheel.
Steering Wheel Position: The scan tool displays 0 to 5 Volts - The scan tool displays the position of the steering wheel in volts.
Vehicle Speed: The scan tool displays 0 - 255 km/h or 0 - 158 mph - This parameter displays the vehicle speed. The Powertrain Control Module (PCM) receives reference pulses from the Vehicle Speed Sensor (VSS) and converts them into km/h or MPH for display.
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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.