Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [scan-tool]

Tool used to interface with onboard computers in a vehicle.

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Difference between OBDII and CAN

What is CAN (controller area network)? What are the differences between an OBD-II protocol and a CAN setup?` How do I use an OBD-II scanner on a vehicle with CAN?
Shobin P
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Can a vehicle be harmed with bad inputs via an OBD-2 port?

I bought a cheap (sub $10) ELM 327 Bluetooth clone OBD-2 diagnostic adapter on a local "ebay-style" market where the seller specializes in car diagnostics and has several thousand positive reviews (read: I guess this seller would not provide…
Kozuch
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Looking for easy ways to set error codes

A lot of people want the check engine light to go off. I am doing some research for school and I want it to come on. Does anyone know some simple problems or faults I can create with a vehicle in order to make the check engine light come on? These…
FooBot
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Identifying faulty O2 sensor with scan tool

I have a 2002 Toyota Corolla (engine 1zz-de) and I am trying to get to the bottom of a p0171 code. I've read from other posts that a faulty O2 sensor could cause the lean condition, so I have been testing those sensors with my scan tool. I was…
Florent
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2 answers

Any open-source OBD scanner analysis tools?

I've been having some weird problems with my '06 Pontiac G6, and finally broke down and bought a Bosch code scanner to see if the DTCs could tell me anything... they didn't. This scanner has the ability to record stats from the car as it's running,…
Matt
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5
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About heavy-duty vehicle diagnostic port

I am trying to design an ELD device that could be connected to the deutsche 9 pin and 6 pin port on heavy-duty vehicles. Is there any place where I can get the pinout configuration of these ports for different brands? I am looking for the pinout…
Adnan
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1989 Chevy Scottsdale 2500 HD 5.7 liter 350

I have just finished a body off restoration of my 1989 Chevrolet Scottsdale 2500 HD. My question, is there an OBDI or OBDII or do I need a adapter to scan it? Even if I rebuilt the engine and transmission it has 90 thousand original miles on it…
brewman4
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Unable to connect OBD2 scan tool

Cheerz, I have purchased recently OBD2 scan tool(Autel MaxiScan MS300) which supports ISO9141. My car (Mitsubishi Lancer GLX 1.3 1999) seems like ODB2 compatible using ISO9141-2 protocol for communication (checked here). I plug the tool, it…
Serhiy
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What Does HRT mean on Scanner Tool?

I was doing an I/M Readiness Test on my Jeep, and saw 'HRT' as one of the failed systems. I've tried googling but have only gotten unclear answers. Does anyone know what this is?
WhiplashGamz
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Erratic LTFT whilst driving

Wonder if anyone could help before I lose the will to live with this issue. I have a Peugeot 207 1.4 petrol 16v done about 125,000 miles, the car starts perfectly every time, but when the engine is cold I have to sit there for at least 5 mins until…
Mark Walker
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Mahindra KUV 100 and Suzuki Alto OBD protocol

Can someone please tell me the OBD-II protocol of Mahindra KUV 100 (diesel) and Suzuki Alto (diesel). Also whether ELM 327 Bluetooth will…
Soumya Sen
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Flow Control for Multiline Responses for Custom 15765-4 CAN messages over ELM327

I am using an ELM327 adapter to talk to the OBD2 port on my car over ISO 15765-4 11b/500k. I want to query for non-standard messages outside of standard OBD2 PIDs, (which I have separately logged from a diagnostic tool). I am trying to reproduce…
LordVonPineapple
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OBD-II Scanning Bluetooth | Are Fault Codes Encripted?

I bought JDiag Fastlink OBD II scanner which is based on ELM327 based OBD II scanners. I noticed that the scanner was able to read all the instrument panel reading such as fuel level, engine temperature, RPM etc. but somehow the scanner doent read…
gfdsal
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Classifying a DTC as active, past or potential

Scantools always classify a DTC as active/current, history/past, potential/memory. How do they classify that? Sample raw data: 80 F1 5A 05 58 01 C1 00 20 0A Can you help classify it as past, current or potential? 80 F1 5A : header 05 : 5 bytes of…
Soumya Sen
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Getting VIN's of North American Vehicles

I'm considering getting a BlueDriver scan tool, but to use it's reports feature either it needs to detect or you need to manually enter a North American VIN. Since I live outside the USA, I was wondering if there is a reliable way to get North…
Robert S. Barnes
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