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2013 Buick Regal – ABS Light With C0035 06
CUSTOMER CONCERN The ABS warning is active and the EBCM stores DTC C0035 06 for the left-front wheel-speed-sensor circuit. CAUSE Circuit testing confirmed an open or low-voltage fault in the left-front wheel-speed-sensor wiring. CORRECTION Repair the left-front wheel-speed-sensor wiring, clear DTC C0035 06, and verify wheel-speed data and ABS operation.
2012 Buick Regal – Rough Running and Timing-Chain Rattle With P0011 and P0300
CUSTOMER CONCERN The engine runs rough with a timing-chain rattle and stores DTCs P0011 and P0300. CAUSE Diagnosis confirmed a worn timing chain as the source of the camshaft-timing fault, misfire, and rattle. CORRECTION Remove and replace the timing chain, clear DTCs, and verify smooth engine operation without timing-chain noise.
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