How to turn off Check Engine light in Trailblazer?

1 Turn the ignition key to the “II” position. 2 Open the hood of the car, then open the fuse panel cover located in the engine bay. 3 Wait five minutes and then turn the ignition key to the “off” position. 4 Place the fuses back into the fuse panel, in their proper location. Start your Trailblazer to verify that the check engine light went off.

What is the diagnostic code for a Chevy check engine light?

Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes. Manufacturer Specific Codes P0342Camshaft Position Sensor A Bank 1 Low Input – Related Information P1031HO2S Heater Current Monitor Control Circuit Sensors 1

Where do I find the trouble code on my Chevy?

These are listed in numerical order for easy searching. When retrieving Chevy trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3.

What is the oxygen sensor code for a Chevy?

P1137HO2S Bank 1 Sensor 2 Lean Or Low Voltage – Read Our Article On Oxygen Sensor CodesFor Help With This Chevy Trouble Code P1138HO2S Bank 1 Sensor 2 Rich Or High Voltage – Read Our Article On Oxygen Sensor CodesFor Help With This Chevy Check Engine Light Code

What does the Check Engine light mean on a trailblazer?

The check engine light can also, in rare instances, refer to various sensors related to engine performance. After you’ve completed the necessary work on your Trailblazer, you need to know how to reset the check engine light.

When does the Check Engine light come on?

The check engine light on your 2003 Trailblazer comes on when regular maintenance is required, or when there is a problem related to the vehicle’s emissions control system. The check engine light can also, in rare instances, refer to various sensors related to engine performance.

How do you reset the fault code on a trailblazer?

Because fault codes are generated and stored on the Trailblazer’s electronic control unit, you’ll need to reset the system; otherwise, the light will stay on. Turn the ignition key to the “II” position. Open the hood of the car, then open the fuse panel cover located in the engine bay.

Where are the IGN fuses on a trailblazer?

Then, pull the PCM BAT and PCM IGN fuses from the fuse panel. Use the fuse diagram on the underside of the cover to locate these fuses. Wait five minutes and then turn the ignition key to the “off” position. Place the fuses back into the fuse panel, in their proper location. Start your Trailblazer to verify that the check engine light went off.

How does an OBD code work on a car?

When your on-board computer detects a problem, it outputs a code through the output, and the code can be read by an OBD-II code scanner, or reader. OBD-II codes, or PID’s can help diagnose powertrain, emission, and other vehicle issues when diagnostic readings are out of accepted ranges.

Where is the OBD scanner on my car?

Plug the scanner into the port under the steering column. Modern vehicles have ports specifically designed for OBD scanners. Look underneath the steering column to find the port, then connect the cord attached to the scanner to the port. Refer to your vehicle’s manual if you cannot find the port.

What are the do’s and don’ts of using an OBD2?

This is because the 16 pins in the plug are extremely delicate and you can easily bend the pins or crack the plastic around the plug if you push too hard. Always turn the ignition on or have the car running according to the instructions in the manual. Failure to do this might corrupt the scanning software.

What does a malfunction indicator light on OBD2 mean?

This light, in the OBD2 standard language, is also called a malfunction indicator light (MIL). When that light is on it means there is a certain sensor in the car that has sent an error message to the powertrain control module (PCM) which it can’t decode.