Working on 2005 Dodge magnum 3.5 Trans works and switches gears fine when cold. At some periods once it get driven it stops switching gears and goes into limp mode. when i look into system data with Modis seeing voltage of 17.1 to 25.7. Has DTC's P0562 and P0891 once I clear codes will switch gears normally for a while. Changed trans control relay checked circuits. Seems to me that the PCM circuits have high resistance.
Country: United StatesMake: DodgeModel: Magnum SXTYear: 2005Engine: 3.5
Trans control Relay
checked trans harness
Hello and welcome to JustAnswer!If you remove the relay while the P0891 is active does the code remain active or does a different code set?