OEM 2005 Toyota Tundra Engine Control Module

2005 Toyota Tundra Engine Control Module Parts Q&A

• Q: What are the guidelines and requirements for reprogramming the Engine Control Module on 2005 Toyota Tundra?

  A: Toyota/Scion and Lexus vehicles started getting flash reprogrammable Powertrain Control Modules (PCM) in their 2001 models before the implementation in all models by 2007. Reprogramming of these modules is authorized when Technical Service Bulletins or Service Campaigns provide explicit directions. Only Toyota/Lexus factory scantool together with Vetronix Mastertech or Toyota-approved J2534 Compatible Vehicle Interface can complete flash reprogramming tasks. Trusted factory programming functions for ECM reconfiguration exist only when Toyota authenticizes its tool software but the software version guidelines come from the Technical Service Bulletin/Service Communication documents. Customers can obtain the Toyota/Lexus factory scantool combined with factory software program cards by contacting SPX Corp at (800) 933-8335 for P/N 01001271 or P/N 01002593-005 which provides the most recent production software version at the time of purchase. Vehicle recalibration using a scantool demands the combination of Microsoft Windows 2000 or Windows XP Operating System on a Personal Computer with a Toyota Diagnostic Tester or Vetronix Mastertech Scantool containing Toyota factory software and a Toyota diagnostic program card together with a PC Interface Cable (P/N 01001090) for transferring data from PC to scantool and Calibration CD (00456-REPRG-001). ECMs programmed with a scantool can also receive updates using a Toyota validated J2534-1 interface that demands a validated J2534 tool together with Toyota Calibration Update Wizard software (installed on calibration CD) and Microsoft Windows 2000/XP or later operating system and Calibration CD (00456-REPRG-001). All interface devices used in Toyotaehicles must be validated through official testing procedures since these devices confirm full compatibility with Toyota, Lexus and Scion makes. The validated J2534 devices consist of Drew Technologies CarDAQ Plus (01.08.06 / 01.08.06 / 04.04), Actia PassThru+ XS (02.01 / 02.01 / 04.04), Vetronix Corporation ES6510 Flasher (06.12 / 04.23 / 04.04), EASE Diagnostics Universal Reprogrammer (JPI1_11b / 1.3.0.13 / 04.04), Snap-On Pass Thru Pro (02.01 / 02.01 / 04.04 The device manufacturer might update its original validated firmware/DLL versions while detailed information about J2534 devices can be obtained by contacting their vendors. The Calibration CD functions with the specified scantools and J2534 interfaces to deliver the most latest vehicle calibration files and appropriate TSBs and a Windows PC version of the Calibration Update Wizard application software together with implementation instructions and users can acquire this CD through Toyota Material Distribution Center using P/N 00456-REPRG-001. The flash reprogramming operation has the power to destroy a vehicle controller completely so technicians must refrain from interrupting the process nor disconnecting their devices nor putting PCs into any low-power status. Professional automobile technicians need to adopt this information as their guidelines for service work on the customer's vehicle but must read all materials completely before each service and completely follow the instructions to stop damage to the customer's vehicle while maintaining secure service practices.