Code 27 - p1-auxiliary #2 - disconnected, Code 28 - reserved, Code 29 - reserved – JLG 10MSP Service Manual User Manual
Page 132: Code 27 - p1-auxiliary #2 - disconnected -28, See table 6-28, Ge 6-28, 28 code 28 - reserved, 28 code 29 - reserved
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