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MS 43 NEW FUNCTIONSMAIN RELAY MONITORThe MS 43.0 system incorporates a new monitoring feature for terminal 87 (KL 87) of themain relay. The relay is monitored internally for the voltage level at KL 87. Five seconds afterthe ignition key is switched on, and the voltage at the KL 15 input is greater than 9 volts,the control module checks the voltage at KL 87.If the voltage difference between the two terminals is greater than 3 volts, a fault will bestored in the ECM.ART-E46ICMS43RELAY_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________16M54engMS43/ST039/3/17/00
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