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Category Details
Category Name
Controller Help Files
Category Created
Fri, 23rd Mar 2018
Last Article Update
Fri, 23rd Mar 2018
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   Controller Help Files

Showing the 2 Articles in this Category 

Controller Recovery Process 

LS1, LB7, LLY, AL5 Controller Recovery

These controllers use a communications protocol that is not very robust and was replaced in 2006. In many cases, these controllers fail with factory tools and will be unrecoverable. A range of tips for LB7 and LLY flashing can be found here.  To attempt to recover a failed LS1, LB7, LLY or AL5 controller;

Full Flash

  1. DO NOT REMOVE POWER FROM THE CONTROLLER.  As long as the controller remains powered up, EFILive’s proprietary boot loader running in the controller will continue to wait for a successful full flash procedure. Retry the full flash procedure until it is successful.
  2. POWER REMOVED FROM CONTROLLER.  If power has been removed from the controller, it may only be recovered if the flash was at least 15%-20% complete and the communication code was reprogrammed to allow the controller to continue to operate in dead poll mode.  Retry the full flash procedure.

If flashing it fails with a “no communications” error then the controller has probably been rendered inoperable and unrecoverable. The only way to recover the controller is to disassemble it and physically remove, reprogram and replace the flash chip on the main circuit board.

Calibration Only Flash

A calibration-flash failure is not critical and will generally not result in an unrecoverable controller. To recover from a failed calibration only flash, turn the ignition off, wait 30 seconds, turn the ignition back on, wait a further 10 seconds, the retry the calibration only flash.

If the calibration only flash continues to fail:

  1. Remove battery power from the controller, by either removing the controller’s fuse or by disconnecting the battery from the vehicle.
  2. Wait 30 seconds.
  3. Reconnect power.
  4. Retry the calibration only flash.

Controller Recovery (All Other Controllers)

A flash failure will normally not render these controllers inoperable because the controller’s built in boot block is not erased and will continue to allow the controller to be reprogrammed after the failure. To recover from a flash failure, retry the flash process again.

If the flash continues to fail:

  1. Update software and firmware to the latest public release versions.
  2. Remove battery power from the controller, by either removing the controller’s fuse or by disconnecting the battery from the vehicle.
  3. Wait 30 seconds.
  4. Reconnect power.
  5. Attempt to full flash the controller with a stock tune.

Where device and controller restrictions are implemented on a tune file, an unrestricted stock tune should be full flashed.  For AutoCal, the AutoCal Remote License MUST be set to give AutoCal permission to flash the tune file.

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LB7 & LLY Tips and Tricks 

LB7 and LLY Tips & Tricks

LB7 and LLY controllers use a communications platform that is not very robust and was replaced in 2006.  In many cases, these controllers fail with factory tools and will be unrecoverable. 

Tips for successful reading/flashing of LB7 and LLY controllers include:

  • Use a bench harness for reading/flashing (Recommended).
  • Remove/isolate all aftermarket devices including mobile phone adapters, aftermarket equipment (audio systems, security, remote start etc) and any devices wired into the OBD port.
  • DO NOT operate any vehicle feature that may communicate on the data bus. This includes opening or closing of hood, doors, windows, as well as changing settings on radio, HVAC, connecting/removing charging devices etc.
  • Check Available Licenses.  The first time FlashScan/AutoCal flashes a controller, licensing requirements are validated and must be met to facilitate a successful flash.  Refer to the License Status knowledgebase article for further information.
  • Check the EFILive Error Code list.  The code displayed on FlashScan/AutoCal and in the EFIlLive software is an important diagnostic tool.  Look up the error code number and obtain a detailed description of the cause and suggested solutions to your issue. 

If you still have problems flashing;

  • Isolate fuses.  Common communication problems are reported with the ABS, BCM, Radio, Info and Lift Pump fuses.
  • If flashing in high speed; revert to low speed flashing.
  • Use pass-thru reading/flashing rather than standalone reading/flashing.

LB7 & LLY Controller Recovery

To attempt to recover a failed flash for LB7 or LLY;

Full Flash

  1. DO NOT REMOVE POWER FROM THE CONTROLLER.  As long as the controller remains powered up, EFILive’s proprietary boot loader running in the controller will continue to wait for a successful full flash procedure. Retry the full flash procedure until it is successful.
  2. POWER REMOVED FROM CONTROLLER.  If power has been removed from the controller, it may only be recovered if the flash was at least 15%-20% complete and the communications codes were reprogrammed to allow the controller to continue to operate in dead poll mode.  Retry the full flash procedure.

If flashing it fails with a “no communications” error then the controller has probably been rendered inoperable and unrecoverable. The only way to recover the controller is to disassemble it and physically remove, reprogram and replace the flash chip on the main circuit board.

Calibration Only Flash

A calibration-flash failure is not critical and will generally not result in an unrecoverable controller. To recover from a failed calibration only flash, turn the ignition off, wait 30 seconds, turn the ignition back on, wait a further 10 seconds, the retry the calibration only flash.

If the calibration only flash continues to fail:

  1. Remove battery power from the controller, by either removing the controller’s fuse or by disconnecting the battery from the vehicle.
  2. Wait 30 seconds.
  3. Reconnect power.
  4. Retry the calibration only flash.

Further Support

If all of the above have been attempted and issues still persist; it will be necessary to provide EFILive support with Diagnostic Trace Files to assist in identifying and resolving your issue.

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