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2010 Chevrolet Tahoe Hybrid – ABS and Traction Lights With P0AC4 and U1820
CUSTOMER CONCERN ABS and traction-control warning lights are on with DTCs P0AC4 and U1820. CAUSE Testing isolated the fault to the Electronic Brake Control Module connector and the EBCM. CORRECTION Repair the EBCM connector and remove and replace the failed Electronic Brake Control Module.
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