Pcm Trailblazer Problem

It wasn't until 2002 that the TrailBlazer became a separate model offered by Chevrolet. The PCM also performs diagnostic tests on various parts of the system. COM is independent from GM and is not affiliated with, sponsored or supported by GM. with New Venture Gear (NVG) 126 (RPO NP4) or NVG 226 (RPO NP8) Transfer Case. OBD II code P0106 is defined as " Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem", and is set when the PCM (Power Train Control Module) detects a signal voltage from the MAP (Manifold Absolute Pressure) sensor that is abnormal with regard to the current engine load or throttle position, or a signal voltage. 12597521" Programmed to your VIN ECM PCM ECU 5. General Tech - 05 Trailblazer no start condition - hi, new member to this forum but love going through previous posts on this forum. HYDRA-MATIC 4L60-E ELECTRONIC CONTROLS ABC123 Entire Article 2000 Chevrolet Camaro PCM/VCM receives signals from various transmission sensors. Although you may have some of these symptoms / problems with your 4L60E Transmission, the repair solution may differ. Tach is in pin 49; 5. My Trailblazer at times wouldn't turn over and start. COM is in no way affiliated with General Motors Corporation. Knock Sensor. The 2002 Chevrolet Trailblazer has 1742 problems & defects reported by Trailblazer owners. Often this code causes the Check Engine light to come on and off in cold temperatures. 2002-2004 Oldsmobile Bravada. I had the code checked and it came up with code P0410 for secondary intake malfunction. Trailblazer is built on robust, reliable Microsoft. The knock sensor is located on the engine block, cylinder head or intake manifold. Turn key and nothing !. the first LS1 PCM was only used on 97-98 Vettes. The 2002 Chevrolet Trailblazer has 10 NHTSA complaints for the power train:automatic transmission:control module (tcm, pcm) at 31,658 miles average. Chevy/Chevrolet Check Engine Light Questions. 0 out of 5 stars 4 More Buying Choices $149. This page will list all the Check Engine Light questions and answers asked of us pertaining to Chevy vehicles. The parts and labor required for this service are. The PCM uses this signal to alter the ignition timing and prevent detonation. Search our online electronic control unit catalog and find the lowest priced discount auto parts on the web. There are many high quality trail blazer chips for your SUV from Chevy. 2002 Buick Rendezvous. 12574976 - 2005 Chevrolet Trailblazer 4. COM is in no way affiliated with General Motors Corporation. Shop for DiabloSport's Best-in-Class Ford, Dodge, & GM performance upgrades for gas & diesel vehicles. The contact had to recharge the battery in order to start the vehicle. 2002-2004 Oldsmobile Bravada. The only way to diagnose a faulty PCM is to use a special tool, called an on-board diagnostic scan tool, or "OBD" scan tool. P0600 is a serial communications link problem with the PCM. 2002-2004 GMC Envoy, Envoy XL. FREE SHIPPING FOR PREDATOR 2, INTUNE 3, AND TRINITY 2. Sensors include engine speed and throttle position, transmission speed, hydraulic pressure and transmission fluid temperature. 2006 Trailblazer EXT Trinity unable to communicate with pcm Post any questions or comments about your Trinity for your GM car or gas truck here. Here is how to test a crankshaft position sensor: Onboard Diagnostic Codes. Finally an affordable, effective solution to the dreaded oil pan pickup tube problem in the Trailblazer SS. There seems to be a problem serving the request at this time. 2004 Chevrolet Trailblazer 4. 2 L straight six engine. Chevrolet TrailBlazer - 2005 Fuse Box Diagram. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 2009 Chevrolet Trailblazer Problems and Complaints - 14 Issues. In addition, the headlights were too dim while driving at night. Remanufactured Dodge Jeep Chrysler PCM ECM ECU Engine Control Module. The knock sensor is located on the engine block, cylinder head or intake manifold. Be sure to order a bolt replacement Kit to replace. at the powertrain control module, check pin 50, in the black connector, for 12 volts with the key on, from the dark green/white wire. The heated leather seats are a comfort for me in any season, and the v8 engine has nice power. 2L PCM ECM ECU Engine Computer. The dealer stated that the PCM needed to be replaced. Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Thanks,-John. Any theories on what it might be?. com Chevy Trailblazer support the heavy pump assembly so you don't kink the brake lines. 95 (1 new offer). Be sure to order a bolt replacement Kit to replace. My trailblazer only has 63,000 miles on it, but I've had tons of problems! The latest problem is that all of a sudden my left turn signal started "clicking/flashing" really fast. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. Some symptoms include ticking or other noises from the fan clutch area. at the powertrain control module, check pin 50, in the black connector, for 12 volts with the key on, from the dark green/white wire. When this happened, the customer said that the Electronic Throttle Control, ABS, Traction Control, and sometimes the 4WD lights would come on. Generic Check Engine Light Codes - Complete Automotive Code Diagnosis Help Generic Check Engine Light Codes can be difficult to diagnose. Learn more about the 2005 Chevrolet TrailBlazer. 2006 Trailblazer EXT Trinity unable to communicate with pcm Post any questions or comments about your Trinity for your GM car or gas truck here. With the car off the battery was steady at 12. 41 Post-test Question 3 The 4200 I6 eliminates the need for an external EGR System by _____. To perform a relearn on a Passkey II system, make sure there is a fully charged battery in the vehicle. The Chevrolet Trailblazer camshaft position sensor problem is becoming a common failure. My trailblazer only has 63,000 miles on it, but I've had tons of problems! The latest problem is that all of a sudden my left turn signal started "clicking/flashing" really fast. Condition Some customers may comment on a hesitation or delayed engagement of the front wheels during a slip condition. 2L Engine Control Module (PCM/ECM/ECU). the first person to do something or go somewhere, who shows that it is also possible for other…. Ever since its debut, the Trailblazer has remained one of the highest selling SUVs on the road, showing off cargo and passenger space along with an uncanny knack for smooth performance most others in its class cannot claim. No subsidary of GM shall bear any responsibility for GMFLASH. Top 30 Common 4L60E Transmission Problems and Repair Below is a list of common transmission problems with the GM 4L60E Transmission and possible solutions to repair. The second most common problem is related to the vehicle's fuel system, gasoline (422. I've also checked the neutral safety switch and the ignition switch which both seems to be working right. Supporting most GM vehicles from 1994 and up, we are here to offer you mail order tuning, dyno tuning, and also performance parts that are made in-house as well as supplied from other manufacture. Order Chevy Trailblazer Engine Control Computer online today. My Trailblazer at times wouldn't turn over and start. Reactions: yazan and Mounce. Any theories on what it might be?. Here are the most common problems that will throw the code. So, before you replace your crankshaft position sensor you might want to run some tests to determine that the crank sensor really is the source of the problem. Sinister Performance, LLC. NOTE REGARDING ENGINE COMPUTERS Engine computers have all been tested when used to start the vehicle they were removed from. COM is in no way affiliated with General Motors Corporation. 2004 Chevrolet Trailblazer 4. ECU/PCM replacement about my 2004 EXT trailblazer having an electrical problem. The LL8 (or Vortec 4200), is a straight-6 truck engine. There are many high quality trail blazer chips for your SUV from Chevy. 2) My coil pack causing it to blow the fuse. Air Conditioning. Mass Meter or a fuel pump delivery problem or clogged or damaged fuel injector. Often this code causes the Check Engine light to come on and off in cold temperatures. FREE SHIPPING FOR PREDATOR 2, INTUNE 3, AND TRINITY 2. My radio will stop n start again. Also, when I put truck into park, all doors unlock except driver's door. I have had numerous electrical problems with my 2005 chevy Trailblazer (82,000 miles). i check this one often. Ive been having some major computer problems with my trailblazer. the first LS1 PCM was only used on 97-98 Vettes. GM Factory Part #:'s 25790869,15293048,15192191 Electronic Fan Clutch problems on Chevrolet Trailblazer, GMC Envoy, Buick Ranier, Oldsmobile Bravada, And Saab Vehicles. The PCM starts out with a baseline fuel/air mixture that it believes will achieve a stoichiometric ratio. Other Potential Problems. Coil on Plug: The Wired Differences 2011 ICAIA Fall Conference Ranken Technical College, St. 02 Chevy trailblazer won't start I can ground to start relay and when I turn the key to run the starter cranks the motor and I'm when I remove the wire The motor shuts off. Free Shipping and lifetime warranty on all GM engine control module and all other Control units Shop with us today!. Condition Some customers may comment on a hesitation or delayed engagement of the front wheels during a slip condition. 2004 GMC Envoy XUV. very common problem in. Note: Damaged, modified, or opened parts are not eligible for returns. 3L: The ECM is near the lower front driver side of the engine. The PCM also performs diagnostic tests on various parts of the system. 2) My coil pack causing it to blow the fuse. Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2002-2007 Chevrolet Trailblazer. Also, when I put truck into park, all doors unlock except driver's door. NOTE REGARDING ENGINE COMPUTERS Engine computers have all been tested when used to start the vehicle they were removed from. (*) If using keyless entry, GMDL1 must be used, if using keyless entry AND remote start, GMDLBP is required. You may be a technician who intends to search for references or address existing issues. Check for damaged components and look for broken, bent, pushed out, or corroded terminals. · Technical Skills/Troubleshooting of Hardware · Inventory and Accounting. Usually a problem with the ECM power relay will produce a few symptoms that can alert the This article originally appeared on YourMechanic. Generic Check Engine Light Codes - Complete Automotive Code Diagnosis Help Generic Check Engine Light Codes can be difficult to diagnose. You could be a specialist who wishes to seek recommendations or solve existing issues. Although considered as a prevalent issue among this vehicle make, a faulty instrument panel is still unusual since this component is meant to last for as long as your car\'s service life. Then finally figured out how to use the PTP ll to replace and unlock a radio on an 07 Silverado Classic, not sure how many GM radios this will work on but it should be able to. The Chevy Trailblazer started strong and has just kept going. Trailblazer’s Gas Gauge Flip-flops More Than a Politician in Election Season March 4, 2017 One of the more infamously problems with GM vehicles is a faulty fuel gauge that often leaves owners wondering just how much gas is left in their tank. Chevrolet TrailBlazer - 2005 Fuse Box Diagram. when to replace your pcm (AND WHEN NOT TO) The onboard computer is the brains of the engine control system, so when the brain isn't functioning correctly neither is the engine or anything else that the microprocessor controls - which may include the charging system, transmission, various emission controls and communications with other onboard. ABS Module Removal & Installation Instructions ModuleMaster Support: 208-892-0764 www. You could be a specialist who wishes to seek recommendations or solve existing issues. We offer high quality new, OEM, aftermarket and remanufactured Chevrolet Trailblazer Electronic Control Unit parts. 7) When there's a problem with the ECT sensor or its circuits, the PCM will see one of the three distinct conditions:. If yes, that wire from PCM to relay is bad somwhere or the problem is internal to the fuse block under the hood. at the powertrain control module, check pin 50, in the black connector, for 12 volts with the key on, from the dark green/white wire. Other Potential Problems. 06 trailblazer pcm wiring diagram. 04 truck Efan problem using pins 33 and 42. was terminated, this may be caused by PCM detecting a problem in cam signal causing DTC P0341, 3X crank signal causing DTC P1374 3X or 18X crank signal causing DTC P0336 18X. The dealer stated that the PCM needed to be replaced. It is a 10amp TBC (Not sure which number) under the back seat. 2006+ harnesses may have fewer wires, these are not needed anyway for stand alone swap. A malfunctioning instrument panel is one of the common problems that are encountered by Chevrolet Trailblazer drivers. i'll try to help you as much as i can. The part must be in the same condition you received it in. when to replace your pcm (AND WHEN NOT TO) The onboard computer is the brains of the engine control system, so when the brain isn't functioning correctly neither is the engine or anything else that the microprocessor controls - which may include the charging system, transmission, various emission controls and communications with other onboard. 7/22/17 UPDATED. I have gotten a couple of questions on how I was able to bypass the auto trans controls on a stock 3800 PCM in order to prevent early rev limiters and other drivability issues it had when I was not using an electronic automatic transmission. ABS Module Removal & Installation Instructions ModuleMaster Support: 208-892-0764 www. I had the code checked and it came up with code P0410 for secondary intake malfunction. Don’t waste your time hunting all over for parts for your Chevy Trailblazer. In this video we discuss (and rant) common problems with Chevrolet TrailBlazer and GMC Envoy vehicles. Here are the symptoms : The ac shuts off when im driving, the radio display it says "needs amp". Tach is in pin 48. These may cause an intermittent malfunction. Inspect all related wiring and connections including the PCM and BCM connections. Electrical components such as lights, heated seats and radios all have fuses in your 2004 Chevrolet Trailblazer LS 4. Here it is in it's entirity. When it goes bad, it typically causes issues with the vehicle’s idle speed. 95 (1 new offer). Nothing at the key. / TrailBlazer / Reset computer 6 turns back on then there is still a problem. Check out free battery charging and engine diagnostic testing while you are in store. The 2002 Chevrolet Trailblazer has 1742 problems & defects reported by Trailblazer owners. 2 L straight six engine. 06 trailblazer pcm wiring diagram. Other Potential Problems. When it goes bad, it typically causes issues with the vehicle’s idle speed. Mass Meter or a fuel pump delivery problem or clogged or damaged fuel injector. Trying to find details about 2003 Trailblazer Wire Harness Diagram? you are right here. I had it towed to a shop, they found a bad ground, and gave me the bad news that. Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2002-2007 Chevrolet Trailblazer. This is because its function is to sense vibrations caused by engine knock or detonation. Note: Damaged, modified, or opened parts are not eligible for returns. thermostat isn't the problem,get a wiring diagram and see which pinouts on the computer go to the ac compressor and gauge. I have gotten a couple of questions on how I was able to bypass the auto trans controls on a stock 3800 PCM in order to prevent early rev limiters and other drivability issues it had when I was not using an electronic automatic transmission. In the middle of installation of my F series and a new car alarm. eBay; Engine Computer Programmed Plug&Play 2006 Chevy Trailblazer PCM ECM ECU. com Chevy Trailblazer support the heavy pump assembly so you don't kink the brake lines. When the feedback from the HO2 sensors shows a deviation, the PCM adjusts the amount of fuel the injectors deliver, in an effort to hit the stoichiometric goal. Also, I’ve had past problems with another vehicle and the loss of the computer memory for idle control. The LL8 (or Vortec 4200), is a straight-6 truck engine. I had it towed to a shop, they found a bad ground, and gave me the bad news that. If there are problems with how the PCM performs these functions, the vehicle will not run and may even incur damage. COM content, comments, or advertising. 06 Trailblazer Pcm Wiring Diagram - Welcome, thank you for visiting this simple website, we are trying to improve this website, the website is in the development stage, support from you in any form really helps us, we really appreciate that. 1,974 problems have been reported for the 2005 Chevrolet Trailblazer. The trouble codes in our example indicate both cylinder banks are running lean, which would increase NOx emissions. A malfunctioning instrument panel is one of the common problems that are encountered by Chevrolet Trailblazer drivers. Ultimate GM Tuning Source. We sell wholesale to the public. ABS Module Removal & Installation Instructions ModuleMaster Support: 208-892-0764 www. Learn more. Also, when I put truck into park, all doors unlock except driver's door. This free video shows you how to replace a blown interior fuse on a 2004 Chevrolet Trailblazer LS 4. " - Sherlock Holmes. I had it towed to a shop, they found a bad ground, and gave me the bad news that. GM Factory Part #:'s 25790869,15293048,15192191 Electronic Fan Clutch problems on Chevrolet Trailblazer, GMC Envoy, Buick Ranier, Oldsmobile Bravada, And Saab Vehicles. Save up to $5,073 on one of 483 used 2005 Chevrolet TrailBlazers near you. This free video shows you how to replace a blown interior fuse on a 2005 Chevrolet Trailblazer LS 4. This list is merely a guide to the possible solutions. COM is independent from GM and is not affiliated with, sponsored or supported by GM. It wasn't until 2002 that the TrailBlazer became a separate model offered by Chevrolet. Read the latest news about GM, including information on the company's direction, open recalls, consumer reviews and complaints, and more. We took this picture on the internet that we feel would be probably the most representative photos for 2004 trailblazer pcm wiring diagram. Its released by Maria Nieto in the best field. at the powertrain control module, check pin 50, in the black connector, for 12 volts with the key on, from the dark green/white wire. Any theories on what it might be?. Visually inspect the related wiring harness and connectors. I have a 2002 Trailblazer 4WD. I have gotten a couple of questions on how I was able to bypass the auto trans controls on a stock 3800 PCM in order to prevent early rev limiters and other drivability issues it had when I was not using an electronic automatic transmission. 2002-2004 Oldsmobile Bravada. Whether it's for scheduled maintenance or a repair job, we have what you need. Supporting most GM vehicles from 1994 and up, we are here to offer you mail order tuning, dyno tuning, and also performance parts that are made in-house as well as supplied from other manufacture. I had the code checked and it came up with code P0410 for secondary intake malfunction. The light is off because the PCM moves the information about the fault to history, and continues checking the problem. 2L 6cyl) stalls at idle - no codes. The trouble codes in our example indicate both cylinder banks are running lean, which would increase NOx emissions. I then tried to start, PCM fuse was still good. Chevrolet Traliblazer computer issues 4 Answers. The worst complaints are transmission, AC / heater, and engine problems. Be sure to order a bolt replacement Kit to replace. Custom Chip / ECM / PCM Reprogramming & Tuning. The PCM starts out with a baseline fuel/air mixture that it believes will achieve a stoichiometric ratio. This problem is very intermittent, and occurs usually on a cold start. Would you believe flash reprogrammable PCMs have been in vehicles for over a decade? The first such application was the 1990 Geo Storm. If the air-fuel mixture becomes too lean and the engine computer can no longer compensate this condition by adding fuel, the engine computer (PCM) turns the "Check Engine" light (MIL) ON and sets the trouble code P0171 - System Too Lean for Bank 1 and (or) P0174 - System Too Lean Bank 2, depending on which cylinder bank is affected. Sensors include engine speed and throttle position, transmission speed, hydraulic pressure and transmission fluid temperature. Please if someone c. a message over serial data to the PCM informing the PCM that a valid key is present and the PCM may start the vehicle. please don't send me your spam or hate mail. Automotive Troubleshooting Secrets have unlimited common auto repair fixes, repair video, troubleshooting, wiring diagrams emailed to you 24/7 by experienced ATS mechanics. Supporting most GM vehicles from 1994 and up, we are here to offer you mail order tuning, dyno tuning, and also performance parts that are made in-house as well as supplied from other manufacture. I have had numerous electrical problems with my 2005 chevy Trailblazer (82,000 miles). Of course, you'll also find them on the GMC Envoy that also uses the 4. Check for OBD2 codes, primarily a code indicating PCM memory is corrupt. I've also tried to other PCM's sign condition. com Chevy Trailblazer support the heavy pump assembly so you don't kink the brake lines. Sooooo, I don't really want to pull the crank to get a 58x wheel pressed on so I'm wondering if anyone has had any luck at getting to the PCM programming to make the change there? I've heard of this being done with "other" tuning SW but my tuner uses HP so I'm hoping someone has figured out a way around this problem. 2004 GMC Envoy XUV. 5) I had a diode setting on my meter; I checked the powertrain control module diode. 12597521" Programmed to your VIN ECM PCM ECU 5. Supporting most GM vehicles from 1994 and up, we are here to offer you mail order tuning, dyno tuning, and also performance parts that are made in-house as well as supplied from other manufacture. Remanufactured Dodge Jeep Chrysler PCM ECM ECU Engine Control Module. a message over serial data to the PCM informing the PCM that a valid key is present and the PCM may start the vehicle. 2004 Chevrolet Trailblazer 4. I installed a new battery on my '03 trailblazer and now car runs rough. They can come. The parts and labor required for this service are. The Chevy Trailblazer started strong and has just kept going. 06 Trailblazer Pcm Wiring Diagram - Welcome, thank you for visiting this simple website, we are trying to improve this website, the website is in the development stage, support from you in any form really helps us, we really appreciate that. Got codes? Read these informative engine light articles and get professional advice from automotive technicians to help you get a handle on check engine light codes and testing procedures. i check this one often. what do PCM and EBCM stand for? could either of these codes be related to problems the car has shifting? when shifting from first to second or second to third, there is often an increase in RPMs accompanied by a hard shift. modulemaster. ABS Module Removal & Installation Instructions ModuleMaster Support: 208-892-0764 www. You could be a specialist who wishes to seek recommendations or solve existing issues. On my way to work today I noticed that my intermittent wipers were acting strangely. Whether it’s for scheduled maintenance or a repair job, we have what you need. check engine light is on, so I connected the scan tool (genisys) to pull the codes, only the "computers" wont communicate,(and yes the key is in the on position) why would that be?? fuses look good, according to driver. An intermittent may be caused by any of the following conditions:. The PCM controls everything from air-to-fuel ratio to generating fault or trouble codes for critical vehicle systems. NET web pages, and Microsoft SQL server for data storage. We took this picture on the internet that we feel would be probably the most representative photos for 2004 trailblazer pcm wiring diagram. In addition, the headlights were too dim while driving at night. 2009 Chevrolet Trailblazer Problems and Complaints - 14 Issues. The end result was the creation of Trailblazer Computers. In this video we discuss (and rant) common problems with Chevrolet TrailBlazer and GMC Envoy vehicles. Ultimate GM Tuning Source. Here are the symptoms : The ac shuts off when im driving, the radio display it says "needs amp". Before the release of a standalone TrailBlazer model, the name was used as a limited-edition trim for the 1999 Chevrolet Blazer SUV. Installations. thermostat isn't the problem,get a wiring diagram and see which pinouts on the computer go to the ac compressor and gauge. Louis, MO Matt Dixon, Assistant Professor, SIUC. Finally I found protechauto, they have the best customer service and had my PCM I needed, it was fast and easy all I had to do was plug it in and go, I will always do business with protech. 2006 Trailblazer Engine Computer Serv. 04 truck Efan problem using pins 33 and 42. Sinister Performance, LLC. “Fuel trim” is the amount of fuel added or subtracted by the PCM. Read the latest news about GM, including information on the company's direction, open recalls, consumer reviews and complaints, and more. This could just be a problem with the connection to the diagnostic tool, and not really be a problem with the truck, could be the tool. I just bought an 04 Trailblazer with a 4. It will compare this information with its preset tables to identify a valid knock. Why the voltage drop test if you are loosing power or ground to the pcm the memory will. This 2004 Chevy Trailblazer came in with multiple concerns. The biggest problem I have is when something mechanical has a problem it is difficult for people to diagnose, and difficult to access to fix. I'm stumped. GM Factory Part #:'s 25790869,15293048,15192191 Electronic Fan Clutch problems on Chevrolet Trailblazer, GMC Envoy, Buick Ranier, Oldsmobile Bravada, And Saab Vehicles. Erratic Dash Gauges? Dim Dead Displays? Dim Dead Back-lighting? Intermittent Function? If you are experiencing these issues, you're not alone. Love them or hate them they are here to stay and driving (or being towed) to a shop near you. Read the latest news about GM, including information on the company's direction, open recalls, consumer reviews and complaints, and more. Well, mom hijacked my car this morning because the Service 4WD light came on in her Trailblazer and she's afraid to drive it. Finally I found protechauto, they have the best customer service and had my PCM I needed, it was fast and easy all I had to do was plug it in and go, I will always do business with protech. Welcome to PCMforless, bringing you more than 25 years combined experience in the automotive racing and fuel injection tuning industry. 2004 GMC Envoy XUV. When you attempt to start the vehicle and you turn the key to the start position, the PCM sends a signal to the starter relay to start the engine. If yes, that wire from PCM to relay is bad somwhere or the problem is internal to the fuse block under the hood. chevy forum at Car Dealer Forums; I've got a 02 Trailblazer that has been giving me a problem since last year. You could be a specialist who wishes to seek recommendations or solve existing issues. the first LS1 PCM was only used on 97-98 Vettes. HYDRA-MATIC 4L60-E ELECTRONIC CONTROLS ABC123 Entire Article 2000 Chevrolet Camaro PCM/VCM receives signals from various transmission sensors. You could be a specialist who wishes to seek recommendations or solve existing issues. Trying to find details about 2003 Trailblazer Wire Harness Diagram? you are right here. Trailblazer’s Gas Gauge Flip-flops More Than a Politician in Election Season March 4, 2017 One of the more infamously problems with GM vehicles is a faulty fuel gauge that often leaves owners wondering just how much gas is left in their tank. It is a 10amp TBC (Not sure which number) under the back seat. NET web pages, and Microsoft SQL server for data storage. Does anyone have the wirring diagram for the 2006 Chevy Trailblazer Ls. We have serviced thousand of these for shops, dealers, salvage yards and individuals from all over the country. Inspect all related wiring and connections including the PCM and BCM connections. the first person to do something or go somewhere, who shows that it is also possible for other…. 2006 Trailblazer EXT Trinity unable to communicate with pcm Post any questions or comments about your Trinity for your GM car or gas truck here. No problem!! Send it back within 14 days of the date you received it and we'll issue you a full refund. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. The PCM's functions include positioning the crankshaft and controlling the ignition spark and timing. 12597521" Programmed to your VIN ECM PCM ECU 5. If you’ve done numerous repairs on the transmission and replaced your automatic transmission fluid and you’re still having problems, the ECM could be at the root of your problems. Although considered as a prevalent issue among this vehicle make, a faulty instrument panel is still unusual since this component is meant to last for as long as your car\'s service life. The light is off because the PCM moves the information about the fault to history, and continues checking the problem. Top 30 Common 4L60E Transmission Problems and Repair Below is a list of common transmission problems with the GM 4L60E Transmission and possible solutions to repair. Labor costs are estimated between $123 and $156 while parts are priced between $411 and $434. This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. When this happened, the customer said that the Electronic Throttle Control, ABS, Traction Control, and sometimes the 4WD lights would come on. i'll try to help you as much as i can. TACHOMETER WIRE WHITE At PCM On Driver Side Of Engine Bay BRAKE WIRE (+) WHITE At Brake Pedal Switch HORN TRIGGER (-) BLACK or BLACK/YELLOW Large Black Connector Under Column LEFT FRONT WINDOW UP BLUE At Switch Inside Driver Door LEFT FRONT WINDOW DOWN BROWN At Switch Inside Driver Door. Bolt-ons, cam installs, superchargers, turbos, wiring, nitrous, engines, carb to EFI swapswe do it all. 12573576 - 2005 Chevrolet Trailblazer 4. COM is in no way affiliated with General Motors Corporation. This time the call was from Pit Stop Auto Repair, a local highly respected shop in the area. I followed the procedure in the Haynes manual to re-learn the PCM (warm car up, run for 2 min at 1200 rpm, then drive) and cleaned the throttle body…. Some symptoms include ticking or other noises from the fan clutch area. 2002 Buick Rendezvous. Visually inspect the related wiring harness and connectors. 30 Minute Learn Procedure Tools Required: None Turn ON the ignition, with the engine OFF. If your PCM fails your Chevy truck can experience a wide range of problems.