What are the OBD2 codes?

There are four different types of OBD-II codes – P, B, C, and U. The P stands for powertrain (engine and transmission) systems, B for body, C for chassis, and U for network and wiring systems. If the ECU commands the check engine light to illuminate, there will always be at least one P0 code stored.

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How do I read OBD2 codes?

Step 1: Plug the OBD scanner into the OBD port.
Step 2: Turn on the ignition.
Step 3: Enter the Vehicle Identification Number.
Step 4: Find OBD codes in the menu.
Step 5: Interpret the first character of the OBD code.
Step 6: Interpret the second character of the OBD code.

How can I get my OBD2 code without a scanner?

Using an odometer Making use of the odometer is another way to retrieve the OBD2 codes. The user is required to depress the vehicle’s odometer. (The “reset” and “trip” buttons must be reset as well.) Simultaneously, the ignition key of the vehicle must be turned on and off.

How do you clear codes on a Cadillac CTS?

Some models can simply reset the check engine light by turning the car on and off several times. First, start the engine, let it run for one second, then turn it off. After letting the engine sit for two or three seconds, repeat the process two more times.

What is the code for a bad catalytic converter?

Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by the vehicle.

Does AutoZone read codes for free?

AutoZone gives you a FREE, easy-to-read MYZONE HEALTH REPORT, which includes relevant codes, and details the action that needs to be taken.

What are the OBDII Codes for a Cadillac?

OBDII Cadillac Code Definitions. Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here.

What kind of OBDII code does GMC use?

GM cars and light trucks use SAE J1850 VPW (Variable Pulse Width Modulation). There are some variations among imports such as the Cadillac Catera, which is a German Opel derivative, the Catera uses the European ISO 9141 protocol. Note: See this page for generic OBD-II codes (they start with P0XXX). P1117 Engine Coolant Temp. Signal Out-Of-Range Low

How do I check for diagnostic trouble codes?

Not open for further replies. To check for Diagnostic Trouble Codes stored in the computer, turn the ignition on, then hold down the OFF and WARMER (for digital dash) or OFF and passenger-WARMER buttons (for analog dash) or OFF and “Info ^” buttons (if you have temperature dials) until all of the dash lights come on.

How do I Turn on the OBD-II?

Good luck! Use the 3 switches located to the right (LH drive cars) of the Driver Information Center (DIC) to activate and respond to the OBD prompts on the DIC. Ignition ON, acknowledge any warning messages; press ON/OFF and INFO UP together for 2 to 3 seconds.