Tips on how to Study OBD two Codes With a Check Engine Light 1Insert the key into the ignition.2Turn the ignition crucial for the on position and then for the off position rapidly. Typically, an precise sequence of "on-off-on-off-on" must be performed within five seconds. This will cause the "check-engine" light to blink Auto diagnostic tools.3Count the number of times the check-engine light blinks. There will be two sets of blinking. For example, if the examine engine blinks twice, this indicates "two."
There will be a pause, and then the second set will start. For example, if the second set blinks three times, this indicates "3." The proper way to read this trouble code would be "23." The "23" refers for the numbered code in your vehicle's service manual diagnostic car tool. Tips on how to Study OBD Codes on a 1999 Chevrolet S10 1Locate the OBD-II connector inside your automobile. The OBD-II connector will be on the lower driver’s side portion of the dashboard, near the emergency brake pedal. Connect your OBD-II scanner into the diagnostic port.2Close all the vehicle's doors and roll up the windows.
Turn on the scan tool and switch the ignition key to the “ON” position but do not start the vehicle.3Refer to your scan tool’s documentation for retrieving the trouble codes from your car. Write down the trouble codes displayed by the scan tool with a pen and piece of paper. Refer to the trouble code section inside the documentation that came with your scan tool or click on the resource below for a list of trouble codes for your automobile and explanations for them.4Switch the ignition back to the “OFF” position and turn off your scan tool. Remove the scan tool’s diagnostic cord from your S10’s OBD-II port.
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