Why is the gpcm not communicating with the u0109 code?
If unable to communicate with the GPCM module, then the U0109 code that the other modules are setting is active, and the problem is there now. The most common failure is loss of power or ground. Check all fuses that power up the FPCM module on this vehicle. Check all grounds for the FPCM module.
What to do if you get a GMC code of u0101?
– Another common area would be to check the harness for rubbing through on any sharp objects mainly on top of transmission where harness can contact a sharp area on the engine block. The cost to diagnose the U0101 GMC code is 1.0 hour of labor.
Are there any issues with the GMC Yukon?
Some owners of 2007-2010 Cadillac Escalades, Chevy Avalanche, Silverado, Suburban and Tahoe, and GMC Sierra, Yukon, Yukon XL, Yukon Denali and Yukon Denali XL vehicles may complain about issues ranging from: IPC indicators on, gauges inoperative, no crank, harsh transmission shifting, no shifting, door locks cycling, etc.
What are the symptoms of an engine code u0109?
Symptoms of a U0109 engine code may include: Malfunction Indicator Light (MIL) On. Vehicle will crank but not run. If the engine does run: Hesitation; Lack of power; Poor performance; Misfiring cylinders (runs rough)
– Another common area would be to check the harness for rubbing through on any sharp objects mainly on top of transmission where harness can contact a sharp area on the engine block. The cost to diagnose the U0101 GMC code is 1.0 hour of labor.
If unable to communicate with the GPCM module, then the U0109 code that the other modules are setting is active, and the problem is there now. The most common failure is loss of power or ground. Check all fuses that power up the FPCM module on this vehicle. Check all grounds for the FPCM module.
What happens if you misdiagnose the u0109 fault code?
Misdiagnosis has been known to occur if you diagnose the U0109 code before any of the basic codes have been thoroughly diagnosed and dismissed. If your scan tool can access fault codes and the only one you get from other modules is the U0109, try to communicate with the FPCM module.
Is the DTC u0101 stored in other modules?
Technicians may find no communication with the TCM and or DTC U0101 stored in other modules. A few TCM’s have been returned from the field for analysis because of the above symptoms.