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The best way to Reset the Check Engine Light on a Toyota Tacoma 1Locate the diagnostic hyperlink connector (DLC) in the Toyota Tacoma. It can be below the driver's side dashboard in between the steering column and also the dash. The shape with the connector will match the trapezoidal shape of the plug connection on the OBD II scan tool.2Attach the plug of the OBD II scan tool for the DLC of your Tacoma automotive diagnostic tool. Make certain it really is plugged in completely.3Place the ignition crucial in to the Tacoma and turn it two clicks to activate the "key-on/engine-off" mode.

This mode illuminates the dash and activates the energy for the electrical selections inside the truck with out truly beginning the engine. It's going to also provide energy for the scan tool from an accessory fuse powered by the battery.4Read the screen with the OBD II scan tool Auto tools. There are plenty of different kinds with slightly unique alternatives, but general, they function similarly. Scroll buttons and "enter" or "select" keys can help you navigate through the several features the scan tool delivers. It's suggested to "read codes" very first just before resetting, unless you've got already produced the required repair that triggered the check engine light.5Scroll for the "reset" or "erase code" option after the code(s) have already been documented, if applicable. Press the "enter"or "select" button to confirm you'd like to erase the code(s).

A number of seconds will pass along with the OBD II scanner will alert you that the command is being sent to the ECM of the Tacoma. When the principle menu in the scan tool reappears, the examine engine light is reset. Be aware that really hard codes and also minor codes can and will re-trigger the examine engine light if not rectified. Hard codes may well re-trigger instantly or may possibly need to endure the IM monitor reset from the ECM. This may possibly take many driving cycles to happen.6Check the status on the verify engine light by unplugging the scan tool and after that starting the Tacoma. The check engine light really should not be illuminated provided that a tricky code just isn't re-triggering the faulty device.