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U0121 Diagnostic Trouble Code Discussion for June 2011

Lost Communication With EBCM


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Trouble Ticket Help Requests for DTC U0121
Help Request Posted
2007 Chevrolet Tahoe LT 5.3L No Start VIN: 1GNEK13067
U0121: Lost Communication With Anti-Lock Brake System ABS Control Module. Hi, we have a Tahoe here that has turned into a real problem child! Our customer went to start it one day & it wouldn't crank so they tried to jump it. Still no crank! They then had it towed to our local Chevy dealer because they thought they had some warr...
June 07, 2011
2007 Chevrolet Tahoe LT 5.3L No Start VIN: 1GNEK13067
U0121: Lost Communication With Anti-Lock Brake System ABS Control Module. Hi, we have a Tahoe here that has turned into a real problem child! Our customer went to start it one day & it wouldn't crank so they tried to jump it. Still no crank! They then had it towed to our local Chevy dealer because they thought they had some warr...
June 07, 2011