Description
OBD-II Trouble Code Description for P0780 GMC
Shift Error
What does this mean?
OBD2 Code P0780 GM definition:
The Transmission Control Module (TCM) monitors the transmission mechanical shifting through various sensors. This malfunction is detected when the A/T does not shift as instructed by the TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking,improper solenoid valve operation, etc.
Symptoms
Possible sumptoms of OBD code P0780 GM
– Engine Light ON (or Service Engine Soon Warning Light) – Transmission shift shock
Causes
Possible causes of OBD code P0780 GM
– Low transmission fluid level – Dirty transmission fluid – Faulty shifting solenoid valve – Shifting solenoid valve harness or connectors – Shifting solenoid valve circuit is open or shorted The Error code is generally activated on detection of the following conditions: The P0780 GM codes is detected when no rotation change occurs between input (turbine revolution sensor) and output (revolution sensor) and shifting time is long or when shifting ends immediately or when engine revs up unusually during shifting.
Possible Solutions
The OBD2 Code Information Be Applicable For GMC:
2013 GMC Terrain Denali,2013 GMC Acadia,2011 GMC Sierra All Terrain HD Concept,2010 GMC Terrain,2010 GMC Granite Concept,2009 GMC Sierra Hybrid Crew Cab,2008 GMC Yukon Hybrid,2008 GMC Denali XT Concept,2007 GMC Yukon XL,2007 GMC Yukon Denali,2007 GMC Yukon,2007 GMC Sierra Denali,2007 GMC Sierra Classic,2007 GMC Sierra 3500 HD SLT Crew Cab,2007 GMC Sierra 2500 HD SLT Extended Cab,2007 GMC Sierra,2007 GMC Acadia,2005 GMC Sierra Denali 1500 Crew Cab,2005 GMC Graphyte Concept,2005 GMC Envoy XL Denali,2005 GMC Envoy Denali
Note:
1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the GMC makes.
2. Look up the other OBD II Trouble Codes, please use the search box. Enter the 5 character trouble codes in the search box and submit the search.
3. Don’t assume a particular OBD-II code means the same for other auto manufacturers as there are many makes specific codes in use.
4. If your OBD-II trouble codes are for a different car, select that vehicle series before searching for the diagnostic codes because not all OBD2 codes used by one manufacture are used by the other makes.
5. The information contained on this site is presented for informational purposes only. We are not responsible for any actions you take on your vehicle. If you have any doubt as to repairs on your vehicle, please contact your technician.