TM-9-2320-334-13&P LHST Operator, Field and Parts Manual M1147A1 Trailer Download
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TM 9-2330-334-13&P THEORY OF OPERATION – Continued 0003 00 Change 1 0003 00-10 ABS ECU - Continued ABS Diagnostic The trailer brake system has a connector on the ECU valve assembly for external ABS DIAGNOSTIC capability.