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Home >> Jeep >> 2005 >> Grand Cherokee 2WD V6-3.7L VIN K >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Testing and Inspection >> PCM/SKREEM Programming
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PCM/SKREEM Programming

NOTE: Before replacing the PCM, be sure to check the related component/circuit integrity for failures not detected due to a double fault in the circuit. Most PCM failures are caused by internal component failures (i.e. relays and solenoids) and shorted circuits (i.e. pull-ups, drivers, and switched circuits). These failures are difficult to detect when a double fault has occurred and only one Diagnostic Trouble Code (DTC) has been set.

When a PCM and the SKREEM are replaced at the same time, perform the following steps in order:
1. Program the new PCM.
2. Program the new SKREEM.
3. Replace all ignition keys and program them to the new SKREEM.

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