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Home >> Jeep >> 2024 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (3.0L - DTCS P061A-00 To P0638-00) >> DTC Troubleshooting >> P061C-00-Internal Control Module Engine Rpm Performance >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.

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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