Rick's Free Auto Repair Advice

Posts Tagged: C1234

ABS light on – C1145, C1234

Fix code C1145, C1234¬†ABS light on If you own a 2003 Mercury Mountaineer 4.0L, FLEX, Vin K and have Anti-lock Brake System (ABS) light on and trouble codes C1145 or C1234, you may have a bad connection at the wheel speed sensor. Start by inspecting the Right Front (RF) wheel speed sensor connections for physical damage. Look for a corroded connection or broken wire. If the sensor shows any signs of physical damage, check the wheel hub and tone ring. Replace the wheel hub or tone ring assembly as needed. … Read More


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