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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS P2135 To U1418 >> Diagnosis And Testing >> U1110-Lost Vehicle Speed Message >> Theory Of Operation

Theory Of Operation

The Powertrain Control Module (PCM) receives the vehicle speed signal over the CAN C bus from the Anti-lock Brake Module.