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Home >> Chevrolet >> 2009 >> Avalanche 5.3 J >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1812 >> Diagnostic Aids
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Diagnostic Aids

A false DTC U1812 can set if the engine does not crank while the ignition key is held in the start position for greater than 3 seconds. Diagnose the engine does not crank condition first.

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