Join Now
International Automotive Technicians Network

U2105 Diagnostic Trouble Code Discussion for September 2011

TCM - No Communication With Engine Control Module


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC U2105
Help Request Posted
2004 Saturn Vue 2.2L No Start, MIL Lamp on VIN: 5GZCZ23D24
U2105: Lost Communication With ECM. ... vue towed to our shop it is beeb 2 weeks now we are trying so hard apparently we have checked everything BCM's and PCM's ground and power sources as far as we know it all there no blown fuse no bad relay we swapped them around with known good ones engine c...
September 20, 2011
2007 Saturn Vue 3.5L No Start VIN: 5GZCZ63417
U2105: Lost Communication With ECM. This Saturn was towed into our shop with the customer requesting a new starter. I went out to the car, and it cranked over, but would not fire. I connected a Tech 2 to the car, and there was no communication with the PCM. I pulled listed codes, along with a fe...
September 22, 2011
2007 Saturn Vue 3.5L No Start VIN: 5GZCZ63417
U2105: Lost Communication With ECM. This Saturn was towed into our shop with the customer requesting a new starter. I went out to the car, and it cranked over, but would not fire. I connected a Tech 2 to the car, and there was no communication with the PCM. I pulled listed codes, along with a fe...
September 26, 2011
2004 Saturn Vue 2.2L No Start, MIL Lamp on VIN: 5GZCZ23D24
U2105: Lost Communication With ECM. ... vue towed to our shop it is beeb 2 weeks now we are trying so hard apparently we have checked everything BCM's and PCM's ground and power sources as far as we know it all there no blown fuse no bad relay we swapped them around with known good ones engine c...
September 20, 2011
2007 Saturn Vue 3.5L No Start VIN: 5GZCZ63417
U2105: Lost Communication With ECM. This Saturn was towed into our shop with the customer requesting a new starter. I went out to the car, and it cranked over, but would not fire. I connected a Tech 2 to the car, and there was no communication with the PCM. I pulled listed codes, along with a fe...
September 22, 2011
2007 Saturn Vue 3.5L No Start VIN: 5GZCZ63417
U2105: Lost Communication With ECM. This Saturn was towed into our shop with the customer requesting a new starter. I went out to the car, and it cranked over, but would not fire. I connected a Tech 2 to the car, and there was no communication with the PCM. I pulled listed codes, along with a fe...
September 26, 2011