Cadillac Escalade P Codes (Powertrain) P0800 - P0899 P0856
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Codes P0856, P2544, P150C, And U0073, No Communication...
Traction And Engine Light On. Rpm Needle Fluctuating. Dtc Are- P0856, P2544, P150c, And U0073. Sometimes There Is No Communication With Ecm...
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