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 DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWBASIC KNOWLEDGE AND TOOL REQUIREMENTSDECIMAL/BINARY/HEXADECIMAL CONVERSIONS
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFI
Decimal/Binary/Hexadecimal Conversions
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFISECTION Decimal/Binary/Hexadecimal Conversions
The scan tool displays various vehicle information which aids in repairing the vehicle. Some scan tools will display encoded messages which will aid in determining the type of the concern. This method of encoding involves the use of 2 additional number systems: Binary and Hexadecimal.
The binary number system uses a base of 2. Each of the digits is a 0 or a 1. The number has eight digits and is read from the right to the left. Each digit has a position number. The digit farthest to the right is in the 0 position. The digit farthest to the left is in the 7 position. A 1 in the 0 position indicates the number 1 in the decimal system. Each position to the left is double the previous position and added to any other position values that are marked as a 1.
The hexadecimal system is 16 different alphanumeric characters. The alphanumeric characters are the numbers 0 through 9 and the letters A through F. The hexadecimal system is a common approach scan tool manufacturers use to display binary data and digital data.
The binary number system uses a base of 2. Each of the digits is a 0 or a 1. The number has eight digits and is read from the right to the left. Each digit has a position number. The digit farthest to the right is in the 0 position. The digit farthest to the left is in the 7 position. A 1 in the 0 position indicates the number 1 in the decimal system. Each position to the left is double the previous position and added to any other position values that are marked as a 1.
The hexadecimal system is 16 different alphanumeric characters. The alphanumeric characters are the numbers 0 through 9 and the letters A through F. The hexadecimal system is a common approach scan tool manufacturers use to display binary data and digital data.
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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.