How can I reset the OBD diagnostic light?
Turn ignition key to the ON position. Don’t start the engine because to reset the light, the engine shouldn’t be running. If the dongle has some LEDs, they should start blinking. If the dongle has on/off switch, make sure it is turned on. Now, launch the OBD Auto Doctor car diagnostic software and connect to the dongle.
What causes an EOBD fault code ( DTC )?
DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.
Is there a way to erase OBD codes?
Several ways are available to erase codes at home, though not every method will work for your vehicle. The only sure way to remove codes is by using a scanner. Connect your vehicle’s diagnostic terminal, usually called the Assembly Line Diagnostic Link (ALDL), to a code scanner and turn the ignition on.
How to read Check Engine light ( OBD-II ) codes?
The scan tool will power up as soon as it has been plugged in. Step 3: Read the codes in the computer. Each scan tool will have different instructions on how to operate it, so read yours carefully. Navigate to a heading called “Read Codes” and select it. Step 4: Record the codes that display.
Several ways are available to erase codes at home, though not every method will work for your vehicle. The only sure way to remove codes is by using a scanner. Connect your vehicle’s diagnostic terminal, usually called the Assembly Line Diagnostic Link (ALDL), to a code scanner and turn the ignition on.
Why do I get No reading on my OBD codes?
Check your fuses to see if any have gone bad. Remember that your car or truck might have more than one fuse box. This should be covered in your owner’s manual or a proper service manual. Another reason for getting no reading is that the scan port has become clogged with dust after years of not being used.
Where to find OBD-II check engine light trouble codes?
Choose the section of codes based on the first three characters of the code (e.g. P0171 is on the P01xx or P0100 through P0199 page): If you’re unsure where to find code information, we highly recommend you just use the search feature instead to get help!
What causes a CANbus error code on an LED bulb?
Aftermarket LED Bulbs causing Error Codes The problem is with false positives created with aftermarket products such as LED bulbs. The most common way a canbus system will check if a bulb is working or not is to measure the resistance on the circuit. Some vehicles measure the total circuit resistance, others check individual bulbs.