Where is the Transmission Control Module is a 2003 chevy silverado 2500HD with a 6.6 duramax diesel

Question edited for clarity.
Question moved to model category.

Is your security light flashing? It sounds like the engine immobilizer is activated.

How do I reset my 2003 chevy silverado security system?

Vehicle History https://www.vehiclehistory.com > questions > how-do-...
Apr 9, 2020 - The first thing You need to do is open the driver's side door, and sit down inside. Next, place Your key in the ignition, and turn it to the on ...

6 answers · Top answer: Resetting the 2003 Chevrolet Silverado security system is easy, and takes about 5 to 10 minutes. The first thing You need to do is open the driver's side ...

How do I Reset the Theft Deterrent System "The Sequence?"

Diesel Place https://www.dieselplace.com > ... > Electrical
Dec 26, 2008 - Try This: · 1. Put the key into the keyway and turn it to the ON (RUN) position. · 2. Within 1 minute after the indicator light goes off, turn the ...

Gmc Sierra 1500: I need to reset the security on my 2004 gmc

JustAnswer https://www.justanswer.com > GMC Questions
Jan 10, 2013 - 30 minute GM relearn procedure: 1-Turn ON the ignition, with the engine OFF. 2-Attempt to start the engine, then release the key to ON ( ...

1 answer · Top answer: HI, What is happening - is the security light staying on and truck not starting, or is the ...

How do you reset the computer and or the passlock, anti

JustAnswer https://www.justanswer.com > Chevrolet Repair
Jan 4, 2010 - Bump the key into the start position then leave it in the on position for 10 minutes, after 10 minute shut vehicle off for 5 seconds and ...

1 answer · Top answer: Ok, let me know. Thanks

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My truck s10 pickup truck 4.34x4 is not fine what could be the primely when it

Dealer item

some of these newer ac systems use safety pressure switches on the low and the high pressure lines , ck and see if yours has 2 and ck accordingly,,,goodluck...

the dealership.., Any PCm u put nto the truck will have to be reprogrammed to that truck. unfortunately that is what has to be done otherwise you will ened up with more problems down the road.

THE DURAMAX ENGINE INJECTORS GO BAD AND SPRAY TO MUCH DIESEL AND IT FILLS THE CRANK CASE UP 200 THOUSAND MILE WARRANTY COMMON PROBLEM DON'T DRIVE IT ANY MORE IF U HAVE BAD INJECTORS.

who did a conversion on this truck???? the duramax is a common rail engine and can not handle wvo or sve. it will destroy your entire fuel system in no time on this truck. if you want to do a vo conversion you need to get a diesel with an inline injection pump or one of the older powerstrokes. i would suggest you quit trying to run wvo through this truck if you do not want to do a lot of very expensive damage

To rebuild without pulling the engine you will have to remove most of the front body ( grille , radiator, intercooler, etc.)

A 2003 6.6 duramax holds 10 quarts with filter. you must also use a high quality diesel rated oil such as shell rotella 15w 40

DTC P1093
Fuel Rail Pressure Low During Power Enrichment



The engine control module (ECM) uses the fuel rail pressure (FRP) sensor to determine fuel pressure to the fuel injectors. This is then compared to the calculated target fuel pressure as determined by the ECM. The ECM adjusts the FRP by modulating the duty cycle of the control driver of the fuel pressure regulator. Injector pulse duration is determined by the measured rail pressure and the target injection fuel into each cylinder. If a sensor circuit malfunction is detected, or the commanded fuel injection pump flow is not within the proper range for a given engine load and speed, DTCs will be set.

DTC U1000 and U1255 Circuit Description Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within about five seconds of beginning serial data communication, DTC U1000 or U1255 is set. When more than one critical parameter does not have an identification number associated with it, the DTC will only be reported once. The class 2 serial data line on this vehicle is a ring/star configuration. The following modules communicate on the class 2 serial data line:
• The body control module (BCM) • The digital radio reciever • The driver door module (DDM) • The electronic brake control module (EBCM) • The front passenger door module (FPDM) • The HVAC control module • The inflatable restraint sensing and diagnostic module (SDM) • The instrument panel cluster (IPC) • The memory seat module (MSM) • The powertrain control module (PCM) • The radio • The radio amplifier • The rear seat audio (RSA) controller • The rear seat entertainment (RSE) assembly w/U42 • The rear wheel steering control module • The remote playback device-CD player w/U1S • The transfer case shift control module • The transmission control module (TCM) w/Allison transmission • The theft deterrent control module • The vehicle communication interface module (VCIM) w/UE1