MRLY

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insomnia
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Joined: Mon Aug 10, 2009 10:26 am
Location: Spain

MRLY

Post by insomnia » Thu Apr 02, 2015 5:12 am

Hi,
Kpro ECU has "MRLY" on E7 pin, What is it? It is connected to a relay near the fuel pump relay

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Hondata
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Re: MRLY

Post by Hondata » Thu Apr 02, 2015 8:13 am

E7 is grounded by the ECU to switch on the main relay. It also is the source of trickle power to keep the ECU memory alive.
Many people connect E7 to +12V (either via an existing main relay or from switched ignition). The ECU then grounds E7 and burns out the component in the ECU. The ECU then will not switch on the main relay and also does not get the memory keep alive power.
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