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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 248 (3.6L - DTCS P0461 To P0652) >> DTC Troubleshooting >> P0633-Skim Secret Key Not Stored In Pcm >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

PROGRAMMING SECRET KEY INTO THE PCM 

  1. Turn the ignition on.
  2. With the scan tool, erase DTCs.
  3. With the scan tool, program the Secret Key information into the PCM using the MODULE PROGRAMMING procedure. Refer to MODULE PROGRAMMING .
  4. Start the engine.
    NOTE:

    If the engine will not start, crank the engine over for 15 seconds. Crank at least 2 times with the ignition switch returning to the off position each time.

  5. With the scan tool, read DTCs and record on the repair order.

    Does the DTC reset?

    Yes 

    • Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to REMOVAL .
    • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

    No 

    • The Secret Key information has been successfully programmed into the PCM. Test is complete.
    • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
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