Haltech E6A - Manual (Page 24)

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These relays should be mounted on the firewall or an inner guard. Do not mount the relays
such that they could catch and collect splashed water. Residual water inside the relay housing
will cause them to fail. Mount them with the tab upwards as shown in the diagram.
1.3.9. Fuse Block Assembly
The fuse block assembly holds the fuses that protect the various components of the Haltech
E6A system.
The fuse block is supplied from the factory with fuses installed. The fuse ratings are shown in
the diagram and should not be changed as these have been selected for best protection.
Altering the fuse ratings could cause severe damage to the E6A system.
The fuse block should be positioned so that it can be easily accessed in case of fuse failure. Do
not mount the fuse block where it could be exposed to water. Mount via the two screws holes
in the block. Ensure that vibration will not cause the screws to vibrate loose.
Connect the Fuse Block assembly to the Main Harness.
1.3.10. Electronic Control Unit (ECU)
The Haltech E6A is not designed to be waterproof. It is desirable that the ECU be given as
much protection from the environment as possible. It is recommended that the ECU be
mounted inside the passenger compartment, either on the firewall, under the dashboard or
under the passenger seat.
The ECU has four mounting holes that allow it to be mounted to most flat surfaces. In extreme
cases of vibration, the ECU should be mounted on rubber anti-vibration pads. When mounting
the ECU remember that the communications connector on the loom should remain accessible
for ease of programming.