Diesel Tuner's Blog

How to: Perform GM VATS Relearn

[fa icon="calendar'] Nov 15, 2019 7:00:00 PM / by Paul Wilson posted in how to, VATS, Knowledge Base

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There are a few circumstances when you will need to relearn your Vehicle Anti-Theft System (VATS) relearn.  This process is also known as resetting your Passlock or Passkey VATS system.  While the Passlock and Passkey systems are slightly different than VATS the trouble shooting them is fairly similar.  We suggest doing your research or have your truck professionally diagnosed prior to you begin this process.  

 

Possible trouble codes

  • B2947: SHORT TO GROUND ON THE PASSLOCK SENSOR POWER CIRCUIT
  • B2948: SECURITY SENSOR SIGNAL CIRCUIT VOLTAGE HIGH
  • B2957: SECURITY SENSOR SIGNAL CIRCUIT VOLTAGE LOW
  • B2958: BCM SIGNAL INPUT VOLTAGE HIGH
  • B2960: BCM READING A VALID BUT DIFFERENT CODE VALUE THAN PREVIOUSLY LEARNED
  • B3031: BCM IS IN LEARN MODE BUT DOES NOT SEE A VALID PASSLOCK™ SENSOR CODE
  • B3033: PASSLOCK™ TAMPER
  • P1626: LOSS OF THE STATE OF HEALTH
  • P1630: THEFT DETERRENT PASSWORD LEARN MODE
  • P1631: INCORRECT PASSWORD FROM THE VTD SYSTEM
  • P1632: UNDECIDED PASSWORD SENT FROM BCM

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How To: Clear Trouble Codes with EFILive AutoCal / SPADE

[fa icon="calendar'] Oct 25, 2019 9:00:00 AM / by Paul Wilson posted in EFILive, SPADE, AutoCal, how to

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This article will walk you through the procedure required to clear DTCs (Diagnostic Trouble Codes) with your EFILive AutoCal or SPADE programming tool.  

Trucks that this procedure is applicable for:

If you do not have an AutoCal or SPADE and need one, visit our website: https://duramaxtuner.com

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