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Instrument cluster short? 2003 Isuzu NQR Diesel (4HE1)
Posted to HD/Fleet Forum on 4/4/2011

Hi all:

This NQR has a recent complaint of the "brake booster" lamp and buzzer remaining on. Warning lamp (KOEO) and the buzzer (KOEO & KOER) with trans (automatic) shifted to rev. or fwd position. Do these have a history of failed/shorted instrument cluster... Login to read more.