
44 Appendices
Note 2 – Calibration Tables
For the following pins the calibration table is available in the provided
Maps.
M400 Pin Yamaha Pin Function
AT1 B03 P15 Air Temperature
AT2 B04 P23 Engine Temperature
AT3 B05 P13 Muffler Water Temperature
AT4 B06 S27 Oil Pressure Switch
AT5 B07 S12 Engine Temperature Switch
AV6 B20 P16 Manifold Pressure Sensor
Note 3 - AT6
Reverse Switch and Dual RPM Limit
The Yamaha Base Maps
include a Rev Limiting function which is activated
when the Reverse Switch is engaged on the craft. If
this switch malfunctions,
or if the switch is not installed, the Dual RPM limit of 4000
permanently engaged.
If your ski appears to limit revs at 4000 rpm, first check
of the Reverse Switch and then check the operation.
The Reverse Switch is wired via harness c
onnector P18 to pin B19 on the
M400 Marine ECU.
In ECU Manager software, this appears in Digital
(AT6).
To check the Reverse Switch operation
1. On the View menu, click Raw Input Values.
2. Click the AT tab and check the AT6 value.
For normal operation (non-reverse), AT6 should be
0.03 volts. When the reverse switch is engaged,
approximately 4.95 volts.
If this is not the case, you can
disable the Dual RPM Limit function
the Base Map.
To disable the Dual RPM Limit
1. On the Adjust menu, click Digital Input Functions.
2. Click Sw In 6 (AT6) - Dual RPM and then click
3. Enter 0 (zero).
4. Press R to restart the ECU, or power cycle the ECU.
MoTeC
For the following pins the calibration table is available in the provided
Base
Reverse Switch and Dual RPM Limit
include a Rev Limiting function which is activated
this switch malfunctions,
onnector P18 to pin B19 on the
as Sw In 6
imately
be
disable the Dual RPM Limit function
from
.
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