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How do you check the codes on a Cadillac CTS?
The only way to know why your Check Engine Light is on is to plug a scan tool into your vehicle’s OBD II diagnostic connector. The scan tool will then display the trouble code or codes that have been set. Most scan tools will display the trouble code and a one line description or definition of the code.
How do you check a Cadillac car code?
How to Check Car Codes in Cadillac Cars
- Put the key into the ignition and turn it to the “on” position.
- Locate the Driver’s Information Center labeled on the control panel.
- Let go of the buttons when you see text appear on the Driver’s Information Center.
What is the most common check engine code?
The most common diagnostic codes for check engine lights are:
- Codes: P0171 – P0175 → Deals with sensing your oxygen levels.
- Codes: P0300 – P0305 → Deal with engine misfires.
- Codes: P0411, P0440, P0442, P0446, P0455 → Deal with the evaporative system.
- Code: P0401→ Deal with exhaust gas recirculation.
How do you look up trouble codes on a Cadillac?
The Cadillac is relatively unique in that it allows you to retrieve the trouble codes right from the driver’s information center on the driver’s-side instrument panel. These trouble codes can be looked up in the Cadillac’s owner’s manual to obtain their exact diagnostic meaning.
How do you read a check engine light code?
Simply turn the Ignition to “Run” (Do not start the vehicle) and put the paper clip in the two terminals. Now watch your Check Engine Light. It will start flashing. It will look like Morse Code, but it isn’t, and is real easy to interpret. The first code that will flash will be a code 12.
Do I need a scan tool to read a code?
You don’t even need an expensive scan-tool or code reader, just a simple paper clip. Locate the ALDL (Assembly Line Diagnostic Lead). It is usually under the drivers side of the dash. It may have a cover over it, and may even say “Diagnostic Connector”. This is the ALDL.
How do I find the Driver’s Information Center on my vehicle?
Locate the Driver’s Information Center labeled on the control panel. Press in and hold the “On/Off” button simultaneously with the up arrow for five seconds. Let go of the buttons when you see text appear on the Driver’s Information Center.