Default Action

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

MIL is illuminated on the first trip that the diagnostic fails.
The MIL will be turned off on the third consecutive trip that the diagnostic passes.

NOTE:

The Powertrain Control Module (PCM) controls the Cooling Fan 1 (Low Speed) Relay by grounding the (N201) Low/High Rad Fan Relay Control circuit when it is determined that low speed fan operation is required.