GM Specific Codes

What are GM codes?

GM Specific Codes

GM OBD1 Codes
15 coolant temp/low temp
16 system voltage high (3.8L) DIS circuit
17 crank signal circuit ECM fault crank position sensor circuit (3.8L)
18 crank signal circuit ECM fault injector circuit (vin P-5.7L)

How do I get my diagnostic trouble codes?

To read the codes, you will have to plug a scan tool or code reader into the 16-pin OBD II diagnostic connector, which is usually located under the dash near the steering column. The tool will then display the code or codes that have turned on the Check Engine Light. To read codes, you need the proper scan tool.

How do I check my engine codes without a code reader Chevy?

Step 1: Odometer Reset Press the odometer’s Trip and Reset buttons while turning the ignition key ON. After turning the key ON, release the odometer Reset and Trip buttons to check if the Diagnostic Trouble Code or DTC appears on the odometer display.

How do you clear a GM OBD1 code?

Pull the fuse from under 15-30 seconds of running time to clear the codes. A quick switch to reverse the current might work, as long as it is pulled up and replaced once you pull it up.

How do I check my OBD1 GM code?

To get the check engine codes to flash in your dash panel, use a jumper wire or a paper clip and connect terminals A and B of the diagnostic connector. Turn your ignition key on with engine off and the codes should start to blink. All codes should start with code 12 which is one long flash followed by 2 short flashes.

Where do I find my GM suspension code?

This sticker is always found on the inside of the glove box door. You can see the codes are in numerical order and that this vehicle came equipped with the Z55 Autoride suspension.

What does P0106 mean?

P0106 is the general code for a problem with the MAP circuit having problem of incorrect voltage output range or an issue with engine performance.

What does DTC 02 mean?

DTC 02 Instantaneous Battery Voltage Out of Range.

Does Advanced Auto read codes?

We offer a variety of free services at our stores. Stop by your local store for free engine code scanning on most OBD II vehicles! We cannot guarantee the problem can be resolved during the visit, but we are happy to refer you to one of our local professional technicians if a more comprehensive diagnosis is needed.

How do you check the codes on a Chevy Silverado?

How to Check Chevy Truck Codes

  1. Select a code reader to look up your Chevy truck’s error codes. The majority of mechanic shops have error code readers. You can also purchase one from an auto repair supply shop.
  2. Scan your Chevy truck’s computer with the code reader. Record all of the error codes that it provides.