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C1218 Buick 2000 Regal Antilock fault Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine ODB2 Fault Codes xz157cng New User May 13, 2009, 2:57 PM Post #1 of 4 (9939 views) C1218 Buick 2000 Regal Antilock fault Sign In Buick 2000 Regal with 3.8L, V6, 85K miles had antilock warning light on. The fault code is C1218. Is the pump bad, or the brake module bad, or wiring fault? How do I troubleshoot this? Hammer Time Ultimate Carjunky / Moderator May 13, 2009, 4:12 PM Post #2 of 4 (9930 views) Re: C1218 Buick 2000 Regal Antilock fault Sign In I can give you the flow chart for this but most of the tests require a bidirectional scan tool. Do you want it? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. xz157cng New User May 14, 2009, 2:49 AM Post #3 of 4 (9924 views) Re: C1218 Buick 2000 Regal Antilock fault Sign In Yes, please. Hammer Time Ultimate Carjunky / Moderator May 14, 2009, 3:28 AM Post #4 of 4 (9917 views) Re: C1218 Buick 2000 Regal Antilock fault Sign In Circuit Description The pump motor is an integral part of the Brake Pressure Modulator Valve (BPMV) . The electronic brake control relay supplies voltage to the solenoid valves and pump motor. This voltage is referred to as the system voltage. The electronic brake control relay, located in the EBCM, is activated whenever the ignition switch is in the RUN position and no faults are present. The electronic brake control relay remains engaged until the ignition switch is turned off or a failure is detected. Conditions for Running the DTC The pump motor is commanded ON. The system voltage is greater than 8.0 volts. Conditions for Setting the DTC Either of the following conditions are present for greater than 0.16 seconds. The voltage across the pump motor is less than 8.0 volts and the commanded pump motor voltage is greater than or equal to the system voltage. The voltage across the pump motor is 3.0 volts less than and the pump motor voltage and the commanded pump voltage is greater than or equal to the system voltage. Action Taken When the DTC Sets ABS/TCS is disabled. ABS/TCS indicators are turned on. Conditions for Clearing the DTC Condition for DTC is no longer present and scan tool clear DTC function is used. 100 ignition cycles have passed with no DTCs detected. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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