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A hard reset is another non-destructive action that can reset the TIPM and clear codes and allow a used TIPM to work in a vehicle.  This action is easily performed by anyone who can turn a wrench.  The idea behind a hard reset is that conductively linking the positive and negative battery terminals drains all electrical energy from capacitors inside the TIPM.

  1. Remove ignition key.
  2. Remove the negative cable from the battery.
  3. Remove the positive cable from the battery.
  4. Keeping cables completely clear of the battery, hold both the positive and negative cables together for 10 minutes. There will be initial sparking as power is drained from the system. Again, please make sure these two cables never touch your battery.
  5. After 10 minutes, discontinue holding the positive and negative cables together. Reconnect the positive cable to the battery positive (+) post, followed by the negative cable to the battery negative (-) post.
  6. Attempt to start the vehicle and confirm it is working properly. If not, proceed to the next step.
  7. Disconnect the ground cable from battery (-) post and touch this cable to the battery positive (+) post. The positive battery cable should be connected to the battery at this time. Hold this connection for 10 seconds, then reconnect your negative cable to the battery negative (-) post.
  8. 90% of all used TIPMs will not need reprogrammed if the above steps are performed properly.
  9. If a TIPM hard reset fails, confirm that you have the correct TIPM part number and all electrical connections are correct. Consult your local dealer to have the TIPM programmed per your VIN.

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