2009 Dodge Journey OBD2 Code P0660: Intake Manifold Tuning Valve Circuit Open Bank 1 - How to Test the Solenoid
I own a 2009 Dodge Journey with a persistent check engine light and OBD2 diagnostic code P0660, indicating an 'Intake Manifold Tuning Valve Circuit Open - Bank 1' fault. I've already removed the intake manifold and thoroughly cleaned carbon buildup from the valve flaps. Despite this, the issue persists. I'm now looking for a reliable method to test whether the tuning valve solenoid is functioning properly. Can anyone provide step-by-step guidance on how to diagnose or test the solenoid using basic tools or diagnostic equipment?
A) Clear the fault code and drive the vehicle under normal conditions to see if the code returns. B) Use an OBD2 scanner to command the Motor Valve Tuning (MTV), then monitor the feedback signal—this process is time-consuming but provides detailed insight into solenoid operation. C) Apply a trouble-shooting approach using probe wires to check voltage, ground connection, and resistance (e.g., K136 pin) at the solenoid location for proper electrical function.