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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 46 (2.0L - DTCS P052B To P0629) >> DTC Troubleshooting >> P061C Etc Level 2 Rpm Performance >> Theory Of Operation

Theory Of Operation

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The vehicle uses a secondary software to calculate engine RPM independently of the base RPM. The Powertrain Control Module (PCM) compares the value of the secondary software calculation and base RPM to determine if there is a discrepancy.

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