{"product_id":"2005-08-allison-6-speed-tcm-t14a-24256864","title":"2006-08 Allison 6 Speed TCM A40 29544772","description":"\u003ch1\u003e2006–2008 Chevrolet Silverado GMC Sierra Allison A40 TCM 29544772\u003c\/h1\u003e\n\u003ch2\u003eRemanufactured Transmission Control Module\u003c\/h2\u003e\n\u003cp\u003eThis listing is for a professionally remanufactured Allison A40 6-speed Transmission Control Module (TCM) for select \u003cstrong\u003e2006–2008 Chevrolet Silverado and GMC Sierra 2500\/3500 trucks\u003c\/strong\u003e equipped with a 6.6L Duramax diesel engine.\u003c\/p\u003e\n\u003cp\u003eEach module is inspected, remanufactured, and tested before shipping.\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e2006–2008 Chevrolet Silverado 2500\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2006–2008 Chevrolet Silverado 3500\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2006–2008 GMC Sierra 2500\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2006–2008 GMC Sierra 3500\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e6.6L Duramax diesel engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSelect LBZ and LMM applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAllison 6-speed automatic transmission\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA40 Transmission Control Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFitment may vary by model year, vehicle configuration, transmission, and production date. Match the original module’s part number before ordering.\u003c\/p\u003e\n\u003ch2\u003eCompatible Part Number\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e29544772\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYour original TCM part number must match \u003cstrong\u003e29544772\u003c\/strong\u003e. Compatibility cannot be confirmed using only the vehicle’s year, make, model, engine, or transmission.\u003c\/p\u003e\n\u003cp\u003eContact us before ordering if the original part number is missing, unreadable, or does not match.\u003c\/p\u003e\n\u003ch2\u003eWhat You Will Receive\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOne remanufactured Allison A40 TCM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePart number 29544772\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModule inspection and testing before shipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation-ready replacement module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon TCM Failure Symptoms\u003c\/h2\u003e\n\u003cp\u003eA failing Transmission Control Module may be associated with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCheck Engine light illuminated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransmission warning message\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHarsh, delayed, or erratic shifting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransmission remaining in one gear or fail-safe mode\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDelayed engagement into Drive or Reverse\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLoss of communication with the TCM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntermittent transmission operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransmission-related diagnostic trouble codes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Diagnostic Trouble Codes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eU0101 — Lost Communication with TCM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eU0100 — Lost Communication with ECM\/PCM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eP0700 — Transmission Control System Malfunction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eP2669 — Actuator Supply Voltage B Circuit\/Open\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOther transmission-related trouble codes may also be present\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese symptoms and codes do not independently confirm that the TCM is defective. Proper diagnosis is required before ordering.\u003c\/p\u003e\n\u003ch2\u003eProgramming and Installation\u003c\/h2\u003e\n\u003cp\u003eProgramming requirements may vary depending on the vehicle and how the replacement module is prepared.\u003c\/p\u003e\n\u003cp\u003eConfirm the programming requirements before ordering. Do not assume the module is plug-and-play unless the listing option or order confirmation specifically states that programming is included.\u003c\/p\u003e\n\u003cp\u003eProfessional installation is strongly recommended. Vehicle-specific setup, programming, or relearning procedures may be required after installation.\u003c\/p\u003e\n\u003ch2\u003eImportant Diagnostic Information\u003c\/h2\u003e\n\u003cp\u003eThe customer or installing technician is responsible for confirming that the TCM is the source of the vehicle’s problem.\u003c\/p\u003e\n\u003cp\u003eBefore installing the replacement module, inspect:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTransmission wiring and connectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower and ground circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBattery and charging-system voltage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommunication circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransmission solenoids\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRelated drivetrain components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstalling a replacement TCM without correcting an existing electrical or transmission problem may damage the replacement module.\u003c\/p\u003e\n\u003ch2\u003eVerify Before Ordering\u003c\/h2\u003e\n\u003cp\u003ePlease confirm all of the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eThe original part number is 29544772\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe vehicle has the correct Allison 6-speed transmission\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe module connectors and housing match\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe vehicle has been properly diagnosed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAny programming requirements have been confirmed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eContact us before purchasing if you need assistance confirming compatibility.\u003c\/p\u003e","brand":"Automobile Computer Solutions","offers":[{"title":"Default Title","offer_id":49226595533055,"sku":null,"price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/5368\/5247\/files\/c6cfdab3-9abf-4b7d-8939-66ce9b3490c6.png?v=1789578972","url":"https:\/\/www.dieselacs.com\/products\/2005-08-allison-6-speed-tcm-t14a-24256864","provider":"Automobile Computer Solutions ","version":"1.0","type":"link"}