This is my research from today 12-22-09 on PCM Flash Reprogramming for a 1996 Saturn, with Excerpts, Links and PDF attached files (PDF's attached if you received this by e-mail. They are not available on my Blog, but the links are on the Web Sites). I am focusing on GM Products. Specifically, I am dealing with a 1996 Saturn that has nothing Mechanically wrong with the Engine, but the "Check Engine" light stays on because of a maul function in the computer, so it will not Pass the TX State Inspection. I know that many people have similar problems with many makes of Auto's. So, this may help more than just GM product owners. There is hope, and perhaps other cheaper alternatives to buying a whole new Computer for your Auto!:)
Don
Adapted from an article written by Larry Carley for Underhood Service magazine
Flash reprogramming PCMs is NOT for the feint of heart. It takes a considerable investment in equipment, paying OEM subscription fees to get flash updates on a CD or online, plowing though pages and pages of charts and tables and TSBs to figure out whether or not the calibration software in a vehicle's PCM needs to be updated, and then plunging ahead with the update itself
Yet PCM flash reprogramming is becoming more and more necessary as vehicle modules get smarter and more complex. GeneralMotors estimates that they have released flash updates for as many as 70% of 1995 and newer GM vehicles.
http://www.aa1car.com/library/2004/us10430.htm
Car companies are relying more and more on flash reprogramming to correct driveability and emissions related problems in newer vehicles. This procedure is usually done at a new car dealership, but with the right software and tools independent repair shops or even individuals can reprogram their vehicle Powertrain Control Modules (PCMs) and other onboard electronics.
U.S. Environmental Protection Agency regulations require original equipment manufacturers to make emissions-related onboard diagnostic service information available to the aftermarket via their technical websites, including updates on reprogramming vehicle modules. The flash reprogramming procedures must conform to SAE J-2534-1 standards, which allow the use of aftermarket scan tools or similar pass-through devices in addition to the factory scan tool.
EPA rules require auto makers to post all of their text-based service and training information on the internet so anyone can access it, and at reasonable cost. For a complete listing of these websites and fees, Click Here.
Most domestic vehicles built since 1996 (over 150 million!) have computers that can be reprogrammed. Reprogramming may be required for a variety of reasons. One is when a vehicle sets false trouble codes. The original factory programming may be overly sensitive or not take into account wear or other factors that may affect the operation of certain sensors or the OBD II monitors.
http://www.aa1car.com/library/flashprom.htm
U.S. EPA rules require vehicle manufacturers to make their OBD II service information and specifications available to ANYONE online for a "reasonable fee" (see chart below). This information is necessary to diagnose and repair emissions and driveability-related problems.
The service information that is available via the vehicle manufacturer websites below typically includes all the information, diagnostic charts and service procedures you would find in an OEM shop manual. In fact, many vehicle manufacturers have discontinued publishing paper shop manuals and only offer their information online or in digital format.
Updated: July 2009
Vehicle Manufacturer Service Information Websites:
http://www.aa1car.com/library/oemwebsites.htm
Scan Tool Help
(Redirected from PCM Engine Control Trouble Codes)
Jump to: navigation, search
Use a paper clip to jumper Terminal A and B of the ALDL *Assembly Line Diagnostic Link* which is above your left knee. Terminal A is an internal ground and is the top right terminal in the connector. Terminal B is directly adjacent and to the left of Terminal A.
Turn the ignition to ON.
All codes are 2 digits between 11 and 99. Codes are displayed on the SES light by flashing the light with short and long pauses to distinguish digits of one code from digits of another. The short pause is used between digits of the same code, long pauses are between codes. Also, each code is flashed three times before going to the next code.
For example, the sequence of code 12 will be: flash, pause, flash-flash, long pause, then repeat 2 times. If Code 12 is not displayed, the self-diagnostic program i snot functioning properly.
If only Code 12 is displayed, no system malfunctions have been stored.
Any existing system fault codes are displayed in order from low to high, except for Code 11.
Diagnostic Trouble Codes and Engine Information Codes for OBD1 Engine Control Modules
[edit]
Diagnostic Trouble Codes
Read more...
http://www.saturnwiki.net/index.php/PCM_Engine_Control_Trouble_Codes
Update - New Links 08-16-13
Don
Engine control unit
From Wikipedia, the free encyclopedia
Jump to: navigation, search
An engine control unit (ECU), also known as power-train control module (PCM), or engine control module (ECM) is a type of electronic control unit that determines the amount of fuel, ignition timing and other parameters an internal combustion engine needs to keep running. It does this by reading values from multidimensional maps which contain values calculated by sensor devices monitoring the engine.
Before ECU's, fuel injection, ignition timing, and idle speed were directly controlled by mechanical and pneumatic sensors and actuators.
Read more...
http://en.wikipedia.org/wiki/Engine_control_unit#ECU_flashing
Jump to: navigation, search
An engine control unit (ECU), also known as power-train control module (PCM), or engine control module (ECM) is a type of electronic control unit that determines the amount of fuel, ignition timing and other parameters an internal combustion engine needs to keep running. It does this by reading values from multidimensional maps which contain values calculated by sensor devices monitoring the engine.
Before ECU's, fuel injection, ignition timing, and idle speed were directly controlled by mechanical and pneumatic sensors and actuators.
Read more...
http://en.wikipedia.org/wiki/Engine_control_unit#ECU_flashing
PCM Flash Reprogramming
Copyright AA1CarAdapted from an article written by Larry Carley for Underhood Service magazine
Flash reprogramming PCMs is NOT for the feint of heart. It takes a considerable investment in equipment, paying OEM subscription fees to get flash updates on a CD or online, plowing though pages and pages of charts and tables and TSBs to figure out whether or not the calibration software in a vehicle's PCM needs to be updated, and then plunging ahead with the update itself
Yet PCM flash reprogramming is becoming more and more necessary as vehicle modules get smarter and more complex. GeneralMotors estimates that they have released flash updates for as many as 70% of 1995 and newer GM vehicles.
http://www.aa1car.com/library/2004/us10430.htm
More on Flash Reprogramming PCMs
Copyright AA1CarCar companies are relying more and more on flash reprogramming to correct driveability and emissions related problems in newer vehicles. This procedure is usually done at a new car dealership, but with the right software and tools independent repair shops or even individuals can reprogram their vehicle Powertrain Control Modules (PCMs) and other onboard electronics.
U.S. Environmental Protection Agency regulations require original equipment manufacturers to make emissions-related onboard diagnostic service information available to the aftermarket via their technical websites, including updates on reprogramming vehicle modules. The flash reprogramming procedures must conform to SAE J-2534-1 standards, which allow the use of aftermarket scan tools or similar pass-through devices in addition to the factory scan tool.
EPA rules require auto makers to post all of their text-based service and training information on the internet so anyone can access it, and at reasonable cost. For a complete listing of these websites and fees, Click Here.
MOST LATE MODEL VEHICLES CAN BE FLASH REPROGRAMMED
Most domestic vehicles built since 1996 (over 150 million!) have computers that can be reprogrammed. Reprogramming may be required for a variety of reasons. One is when a vehicle sets false trouble codes. The original factory programming may be overly sensitive or not take into account wear or other factors that may affect the operation of certain sensors or the OBD II monitors.
http://www.aa1car.com/library/flashprom.htm
OEM Automotive Service Information Websites
Copyright AA1CarU.S. EPA rules require vehicle manufacturers to make their OBD II service information and specifications available to ANYONE online for a "reasonable fee" (see chart below). This information is necessary to diagnose and repair emissions and driveability-related problems.
The service information that is available via the vehicle manufacturer websites below typically includes all the information, diagnostic charts and service procedures you would find in an OEM shop manual. In fact, many vehicle manufacturers have discontinued publishing paper shop manuals and only offer their information online or in digital format.
The following information was provided by the National Automotive Service Task Force.
Updated: July 2009
Vehicle Manufacturer Service Information Websites:
http://www.aa1car.com/library/oemwebsites.htm
Scan Tool Help
Info in this page... READING CODES, CODE READERS, SCAN TOOLS, PROFESSIONAL LEVEL SCAN TOOL, FEATURES OEM OR AFTERMARKET SCAN TOOL?, IS THE SCAN TOOL CAN COMPLIANT?, SCANNER SOFTWARE, SCAN TOOLS WITH SCOPE DIAGNOSTICS, SCAN TOOL COMPARISON REPORT, ADVANCED SCAN TOOL DIAGNOSTICS, OTHER THINGS YOU WILL NEED IN ADDITION TO A SCAN TOOL
http://www.scantoolhelp.com/Saturn pcm flash reprogramming, other links from good info that I found...
- saturn pcm flash reprogramming - Google Search
- PCM Flash Reprogramming
- Flash Reprogramming - http://valleyautoelectriclp.com/Flash_Reprogramming.html
- EASE DIAGNOSTICS - THE LEADER IN PC AUTOMOTIVE DIAGNOSTIC SYSTEMS
- EASE DIAGNOSTICS - THE LEADER IN PC AUTOMOTIVE DIAGNOSTIC SYSTEMS
- OEM AUTOMOTIVE SERVICE INFORMATION WEBSITES
- Vetronix Corporation - Diagnostics and Telematics Solutions
- Bosch Diagnostics
- ACDelco TDS
- How to fix the PCM Flash Memory
- TIS - http://tis2web.xw.gm.com/tis2web
- TIS - http://tis2web.service.gm.com/tis2web
- More on PCM Flash Reprogramming
- http://www.scantoolhelp.com/
- saturn pcm flash reprogramming open source - Google Search
PCM OBD1 Engine Control Trouble Codes
From SaturnWiki(Redirected from PCM Engine Control Trouble Codes)
Jump to: navigation, search
Use a paper clip to jumper Terminal A and B of the ALDL *Assembly Line Diagnostic Link* which is above your left knee. Terminal A is an internal ground and is the top right terminal in the connector. Terminal B is directly adjacent and to the left of Terminal A.
Turn the ignition to ON.
All codes are 2 digits between 11 and 99. Codes are displayed on the SES light by flashing the light with short and long pauses to distinguish digits of one code from digits of another. The short pause is used between digits of the same code, long pauses are between codes. Also, each code is flashed three times before going to the next code.
For example, the sequence of code 12 will be: flash, pause, flash-flash, long pause, then repeat 2 times. If Code 12 is not displayed, the self-diagnostic program i snot functioning properly.
If only Code 12 is displayed, no system malfunctions have been stored.
Any existing system fault codes are displayed in order from low to high, except for Code 11.
Diagnostic Trouble Codes and Engine Information Codes for OBD1 Engine Control Modules
[edit]
Diagnostic Trouble Codes
Read more...
http://www.saturnwiki.net/index.php/PCM_Engine_Control_Trouble_Codes
These Links are about both PCM's and ECU's which are basically the same thing as the above article explains. The pages on ECU's mention other Auto Makes other than Saturn's and GM's. But the principles of working with their ECU can apply to PCM's as well. Here are the links...
- Saturn pcm open source
- saturn pcm reprogramming open source - Google Search
- MOTOR Magazine Article | MOTOR Information Systems
- GM's Official Stand On Aftermarket PCM Programming - GM Inside News Forum
- Diagnostic Equipment Roundup by Karl Seyfert
- To flash or not to flash - page 3 | Motor
- untitled - Powered by Google Docs
- Carputing ECM Editing Software - GM High-Tech Performance Magazine
- Main_Page - http://www.saturnwiki.net/index.php/Main_Page#SaturnWiki_Contents
- PCM connectors - SaturnWiki.net
- Powertrain Control Module - SaturnWiki.net
- SPS - Home
- Enginuity 0.4.1 - Open Source ECU Tuning - Google Search
- ecm open source software - Google Search
- Engine control unit - Wikipedia, the free encyclopedia
- RomRaider/Ecuflash getting started FAQ [Archive] - NASIOC
- OSecuroms & XPT Tuning •Index page
- ECUProject.com - Your source for Open ECU Development
- OPENSOURCE TUNING: Your questions answered here!!! RomRaider + Tactrix - ClubWRX Forum - Subaru Impreza
- WRX and STi Community and Forums
- System modelling software aids ECU design: News from LMS International
- Open source - Wikipedia, the free encyclopedia
Update - New Links 08-16-13
- Engine Control Unit (ECU) Engine Control Module (ECM) or Powertrain Control Unit-Module (PCU, PCM)
- ecu open source download - Google Search
- Engine Control Unit - Wikipedia, the free encyclopedia
- Engine Control Unit: Information from Answers.com
- Taking Open Source to the Next Level | MetaFilter
- Enginuity - Open Source ECU Tuning, Reflashing and Logging | Enginuity / Download
- Enginuity - Open Source ECU Tuning, Reflashing and Logging | Enginuity / Download
- Automotive Diagnostic Scanners - ELM327 is a programmed microcontroller produced by ELM Electronics for translating the on-board diagnostics (OBD) interface found in most modern cars
- elm327 usb - Google Search
- elm327 - Google Search
- Amazon.com: 1.5a OBD II ELM327 USB CAN-BUS Scanner: Camera & Photo
- Soliport ELM 327 Bluetooth OBDII OBD2 Diagnostic Scanner : Amazon.com : Automotive
- ELM327 Bluetooth OBDII OBD2 Diagnostic Scanner Can ELM 327 Scantool Check Engine Light Car Code Reader : Amazon.com : Automotive
- ELM327 - Wikipedia, the free encyclopedia
- DonsDeals Amazon Associates Store. Same Great Deals! Clean and Easy to Read Pages. - HDE ELM 327 Diagnostics USB Cable
- DonsDeals Amazon Associates Store. Same Great Deals! Clean and Easy to Read Pages. - Soliport ELM 327 Bluetooth OBDII OBD2 Diagnostic Scanner
- DonsDeals Amazon Associates Store. Same Great Deals! Clean and Easy to Read Pages. - Koolertron F-12 ELM 327 OBDII PC Car Diagnostic Scanner
- Soliport ELM 327 Bluetooth OBDII OBD2 Diagnostic Scanner : Amazon.com : Automotive
- ELM327 V1.4 USB OBD2 OBDII CAN-BUS Diagnostic Scanner USB Cable : Amazon.com : Automotive
- OBDPro scan tool - OBD 2007 software bundle $US139.99 - OBD 2007
- elm327 software open source - Google Search
- REVIEW: OBD-II Scan Tool (ELM327 Clone) using Scantool.net v1.13 software - part 1 - M2eK
- SDB:ELM327 based ODB2 scan tool - openSUSE
- djs/obdii · GitHub
- Elm327 Software for Onboard Diagnostics OBD for Cars - Free Open Source Codes - CodeForge.com
- Download OBD-ELM327.rar - Free Open Source Codes - CodeForge.com
- Creating Software (+Embedded Device) to Interface with ELM327
- Drew Technologies : Home
- Drew Technologies : Introduction
- ODB II vehicle diagnostics circuits?
- ELM327 Free SOFTWARE Download
- STN1110 Bluetooth OBD-II Adapter | AH Design
- ScanTool.net LLC - Scan Tools, PC, iPhone, & Android based OBD-II (OBD2) Interfaces, OBD diagnostic software
- ScanTool.net LLC - ScanXL Professional - OBD Software - ScanTool.net
- Torque — OBD2 Performance and Diagnostics for your Vehicle
- OBD Gauge
- ScanTool.net, LLC - Downloads
- OBDwiz OBD2 Diagnostic Software Download - OBDSoftware.net
- ELM327 datasheet pdf datenblatt - List of Unclassifed Manufacturers - OBD to RS232 Interpreter ::: ALLDATASHEET :::
- Why you shouldn't buy ELM327 clones
- OBD II Scan Tool, Genuine Elm327, USB / Bluetooth Interface
- ELM327 pdf, ELM327 description, ELM327 datasheets, ELM327 view ::: ALLDATASHEET :::
- DonsDeals: Automotive Diagnostic Scanners - ELM327 is a programmed microcontroller produced by ELM Electronics for translating the on-board diagnostics (OBD) interface found in most modern cars
- saturn pcm reprogramming open source - Google Search
- ECU - PCM Programming Tips and Tools - imtn_V16I209.pdf
- TunerCat
- Adapters/Flash
- WinFlash
- Tuner Description
- ST9303-SP_ED_nl.qxd - ST9303l.pdf
- GM Code Reade r- gmcre.pdf
- EASE Online Support Web Site
- EASE - OBD2 Scan Tool, J2534 Programming, OBD2 (obd-ii) Software
- ECM Reprogramming & Packaged Tunes - Pontiac Solstice Forum
- MOTOR Magazine Article | MOTOR Information Systems
- PCM Flash Reprogramming Procedures
- How to Reprogram PCM
- OEM AUTOMOTIVE SERVICE INFORMATION WEBSITES
- http://www.scantoolhelp.com/
- ACDelco TDS
- 96 Saturn SL2 info
- 96 saturn sl2 specs - Google Search
- 1996 Saturn SL Specifications
- 1996 Saturn SL2 Specs & Specifications - CarsDirect
- Saturn S-Series - Wikipedia, the free encyclopedia
- 96 saturn 4 door specs - Google Search
- Used 1996 Saturn S-Series SL2 Sedan Performance Specs - 1996 Saturn S-Series SL2 Sedan Performance Specifications - Motor Trend Magazine
- 1996 Saturn SL2 Specifications | eHow.com
- 96 Saturn SL2 specs - Google Search
- is there anything i can do to make my 96 saturn sl2 faster?
- 1997 Saturn Sl2 | New Carssss
- Ask the Mechanic
- 96 saturn sl2 runs rough start - Google Search
- 96 saturn sl2 runs rough start - Google Search
- starts hard runs rough - SaturnFans Forums
- Differential Pin Inspection - YouTube
- 96 Saturn SL2 RICHPIN - YouTube
- DOHC Coolant Temp Sensor Location - YouTube
- Rear Brake Job - YouTube
- 96 Saturn SL2 hard start runs rough - YouTube
- P0340/P0341 Troubleshooting S-Series - SaturnFans Forums
- 2000 Saturn S-Series Consumer Discussions
- 96 SL2 hot engine hard start. - SaturnFans Forums
- 1996 saturn sl1 idle and start up problems - SaturnFans Forums
- Why does my 1996 Saturn sl2 does not start when it gets hot? - Yahoo! Answers
- 1996 Saturn Other Problem Sl2 Starts Rough, Dies
- 1994 Saturn Other Problem 94 Sc2 Idles Down Won't Start
- Saturn SL2 won't start-not the starter - Car Forums and Automotive Chat
- 96 saturn sl2 ects (coolant temp sensor) - Google Search
- 96 Saturn SL2 Good instuctions and pics - Changing the ECTS Coolant Temp Sensor (with pictures) - SaturnFans Forums
- Changing the ECTS Coolant Temp Sensor (with pictures) - Page 2 - SaturnFans Forums
- Replaced plastic ECTS with new brass, now I have code 14 - SaturnFans Forums
- Put on Mom's 96 Saturn - Standard Crankshaft Position Sensor (#PC48) for Saturn Sc / Sl / Switch 01-93 (Crankshaft Position Sensors)
- 96 Saturn SL2 trans sensor - Google Search
- Auto Parts and Accessories Catalog - 1996 Saturn SL2
- Parts Bin - Auto Parts and Accessories Catalog - crankshaft position sensor - CTS Crankshaft Position Sensor
- 96 Saturn SL2 Crankshaft Position Sensor - Google Search
- Actron/OBD II code reader for 1996 and newer vehicles (CP9125) | Code Reader | AutoZone.com
- Actron/OBD II Pocketscan plus for 1996 and newer vehicles with urgency ratings (CP9410) | Code Reader | AutoZone.com
- Actron/OBD II Autoscanner plus tool for 1996 and newer vehicles, bilingual (CP9180) | Code Reader | AutoZone.com
- Actron/OBD II and CAN AutoScanner plus tool with CodeConnect and ABS displays for 1996 and newer vehicles, trilingual (CP9580) | Code Reader | AutoZone.com
- Actron/ABS Brakescan for domestic 1996 and newer vehicles (CP9449AZ) | Code Reader | AutoZone.com
- DonsDeals Amazon Associates Store. Same Great Deals! - Soliport ELM 327 Bluetooth OBDII OBD2 Diagnostic Scanner, ELM327 wireless OBD 2 Scan tool check Engine Light CAR CODE READER
- DonsDeals Amazon Associates Store. Same Great Deals! - Soliport ELM 327 Bluetooth OBDII OBD2 Diagnostic Scanner, ELM327 wireless OBD 2 Scan tool check Engine Light CAR CODE READER
- DonsDeals Amazon Associates Store. Same Great Deals! - HDE ELM 327 Diagnostics USB Cable
- DonsDeals Amazon Associates Store. Same Great Deals! - Bluetooth ELM 327 Scanner OBDII PC Car Diagnostic
- DonsDeals Amazon Associates Store. Same Great Deals! - EOBD / OBD II / OBD 2 Live Data CanScan D900 PCM Data Code Reader Scanner
- Amazon.com: Bluetooth USB 2.0 Micro Adapter Dongle: Electronics
- Amazon.com: ElmScan 5 Compact USB OBD-II Scan Tool & OBDWiz Engine Diagnostic Software (423001): Automotive
- Amazon.com: ElmScan 5 Compact USB OBD-II Scan Tool & OBDWiz Engine Diagnostic Software (423001): Automotive
- Saturn repair questions? Ask a mechanic and get answers ASAP
- Saturn repair questions? Ask a mechanic and get answers ASAP
- Saturn SL2 Repair Questions FREE Answers
- What Is the Difference Between a Saturn SL1 and a Saturn SL2 ? | eHow.com
- List: Search for 'door lock switch' | O'Reilly Auto Parts
- Search Results for door lock switch | AutoZone.com
- Stores Near Azle, TX | O'Reilly Auto Parts
- DonsDeals: PCM Flash Reprogramming
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