Set Condition

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

The Powertrain Control Module (PCM) detects the engine speed is 50 RPM or more (depending on vehicle specifications) below target idle speed for more than 3 seconds, and the average spark advance is above the failure threshold for more than the specified limit.