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DTC P0513: Invalid Skim Key: Testing

  1. Turn the ignition on. With the DRBIII(R), read DTCs. Is the Good Trip counter displayed and equal to zero? If yes, go to next step. If no, go to step  7 .
  2. With the DRBIII(R), attempt to communicate with the SKIM. Can the DRBIII(R) communicate with the SKIM? If yes, go to next step. If no, perform BUS +/- SIGNAL OPEN OR NO RESPONSE FROM SKIM system test in the appropriate BODY CONTROL MODULES article.
  3. With the DRBIII(R), check for SKIM DTCs. Are any DTCs present in the SKIM? If yes, repair SKIM DTC(s). See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If no, go to next step.
  4. Turn the ignition on. With the DRBIII(R), display the VIN that is programmed in the PCM. Has a VIN been programmed into the PCM? If yes, go to next step. If no, program the correct VIN into the PCM and retest.
  5. With the DRBIII(R), display the VIN that is programmed in the PCM. Was the correct VIN programmed into the PCM? If yes, go to next step. If no, replace the PCM.
  6. Turn the ignition off. Replace and program the SKIM. See SENTRY KEY IMMOBILIZER MODULE  under PROGRAMMING. Turn the ignition on. With the DRBIII(R), erase all SKIM and PCM DTCs. Attempt to start and idle the engine. With the DRBIII(R), read the PCM DTCs. Does the DRBIII(R) display this DTC? If yes, replace the PCM. If no, test is complete.
    7. NOTE: This DTC could have been set if the SKIM harness connector was disconnected, or if the SKIM was recently replaced. All keys that the customer uses for this vehicle must be tested to verify they are operating properly. Ensure the customer is not attempting to use a non-SKIM duplicate key. If this DTC cannot be reset, it could have been an actual theft attempt.
  7. With the DRBIII(R), verify the correct VIN is programmed into the PCM and SKIM. Turn the ignition off. With the next customer key, turn the ignition on and crank the engine to start. With the DRBIII(R), read the PCM DTCs. Is the Starts Since Set counter for DTC P1685 displayed and equal to zero? If yes, replace the ignition key. If no, test is complete.
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