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Code Readers

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Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Can I Fix My Car with a Home Code Reader/Scanner?
Most Most cars today (anything manufactured after 1996, actually) have an onboard computer that stores trouble codes when something goes wrong with a major component in the engine, transmission or emissions system. By connecting a code reader/scanner to the OBD...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...
Should I Buy My Own Code Reader or Scanner?
All All cars made from 1996 onward have an onboard computer that detects faults in the engine, transmission and emissions systems, and communicates problems through lights in the dash (your Check Engine Light, for instance). There’s also a connector located...

Related questions

ABS light error codes

Hello. The ABS fuse will be located in the central junction box inside of the engine bay. It is likely that you have a short somewhere that is causing fuses to blow (https://www.yourmechanic.com/article/signs-your-car-has-a-blown-fuse) or interrupting another circuit. Your particular vehicle...

Car completely died after diagnostics scan, dealer says to replace kvm and body control module, very expensive! How and y?

Hello, thank you for writing in. You are in a tricky situation. It is very rare that simply pulling the diagnostic codes with a scanner would cause any kind of issue. The problem has likely stemmed from the keyless vehicle...

i need to know the key sequence to get the check engine codes

Hello. The old style of retrieving codes was indeed done by turning the key on and off again. However vehiles manufactured after 1996 are equipped with OBD-II diagnostic systems. This means the driver or technician can acess and even control...

I have a 1986 Chrysler Laser turbo with 13700 miles that failed emissions. Do oxygen sensors go bad from sitting around too long?

Wow, I almost bought one of these new back in 1986. It is possible that due to age, any number of sensors can be bad, even without a Check Engine Light being set. The best way to determine that is...

Which oxygen sensor usually fails first? I don't have a code reader to tell which one is bad.

Hi. In my experience, I haven't really seen one oxygen sensor fail more than the other one. Considering the year of the truck, I would replace all the oxygen sensors on the truck because, if one is going bad, then...

Replaced oxygen sensors, but code P0135 still visible - 1996 Lexus LX450

P0135 is a "heater circuit" malfunction in the O2 sensor. This is usually a fused circuit. Check your Owners Manual to verify that it is fused, then check that fuse to make sure it isn't blown ("something" caused the old...

Check Engine Light codes. 2006 Mercedes Benz E55 AMG

Since you are getting many different codes from different areas of the engine, you may need to have the system hooked up to a factory scanner since most of these generic codes do not cross over in my repair software....

ABS T/C error light

Hey there, thanks for writing in about your 2006 Buick Terraza. There is a possibility of the connector C305 under the drivers seat on the rear getting corrosion and damage from water getting on the connector. The connector is not...

Is It Worth It to Buy My Own Scanner or Code Reader?

A code scanner is used to access the onboard diagnostic system (OBD) of your vehicle. Not all code scanners are created equal; there are many different scanner types. The most inexpensive scanners on the market today hookup to the OBD...

Is It Worth It to Buy My Own Scanner or Code Reader?

A code scanner is used to access the onboard diagnostic system (OBD) of your vehicle. Not all code scanners are created equal; there are many different scanner types. The most inexpensive scanners on the market today hookup to the OBD...

ABS light error codes

Hello. The ABS fuse will be located in the central junction box inside of the engine bay of your 2005 Ford E-250. It is likely that you have a short somewhere that is causing fuses to blow (https://www.yourmechanic.com/services/fuse-replacement) or interrupting...

The code reader for my engine light says P0306P. What does the second P mean?

The P means powertrain. The second P is not normal and may just be the scanner you are using. This vehicle does not use the second letter P. I would disregard it. As far as the P0306 it indicates a...

My check gage light turns on and now my check engine is turning on as well. What can be the issue?

Hello. Are the warning lights (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) turning off and on? This may be a sign that the issue is intermittently showing itself and the scan may have done when the code wasn't triggered. The computer is constantly running tests and...

The Check Engine Light came on after washing my Durango

It sound like you got water into some of the electrical connections from the water that is sprayed sideways and from the bottom of some of these car washes. Also, your car was running, which could cause the water to...

Stalls without warning

I have never seen a DTA's message displayed on the dashboard of any vehicle, so I'm not sure what you mean. To determine the problem, you need to "catch the vehicle in the act." Checking fuel pressure and spark when...

Torque converter vibrates - 2005 Chevrolet Avalanche 2500

Torque convertor "shuddering" is a cycle where the torque convertor tries to lock up, can't, and re-cycles repeatedly. General Motors has a service bulletin - TSB Reference #3438A, that addresses this issue. Discuss this issue with your dealer.

EGR P0404 code accelerating. 2005 Buick Terraza

For this code, there is a related technical service bulletin (https://www.yourmechanic.com/article/how-to-use-a-technical-service-bulletin-by-parker-hill) 06-06-04-003D (http://workshop-manuals.com/buick/terraza_awd/v6-3.5l_vin_l/powertrain_management/prom_programmable_read_only_memory/component_information/technical_service_bulletins/customer_interest/06-06-04-003d/) dated March 20,2007. The TSB calls for installing a new EGR kit consisting of a new valve, tube, and wire connector, and directions to reprogram the powertrain...

Is It Worth It to Buy My Own Scanner or Code Reader?

A code scanner is used to access the onboard diagnostic system (OBD) of your vehicle. Not all code scanners are created equal; there are many different scanner types. The most inexpensive scanners on the market today hookup to the OBD...

Is It Worth It to Buy My Own Scanner or Code Reader?

A code scanner is used to access the onboard diagnostic system (OBD) of your vehicle. Not all code scanners are created equal; there are many different scanner types. The most inexpensive scanners on the market today hookup to the OBD...

Is It Worth It to Buy My Own Scanner or Code Reader?

A code scanner is used to access the onboard diagnostic system (OBD) of your vehicle. Not all code scanners are created equal; there are many different scanner types. The most inexpensive scanners on the market today hookup to the OBD...

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