Problem #2 VGOV Line Open (RQST Line OK) – With the PerfectPass system
control ON, the engine will not go above idle no matter how far the manual
throttle is pushed. With PerfectPass control OFF, the engine is controlled as
normal by manual throttle handle.
Problem #3 STAT Line Open (RQST Line and VGOV Lines OK) – Engine
operates normally with PerfectPass control ON, the engine RPM’s become
limited at speed slightly above system set point, but there is no proper control
and speed remains one or two mph above setpoint. The PerfectPass does not
beep to acknowledge engagement and the underline characters never appear.
Problem #4 PerfectPass Does Not Engage The “S” (Status Line) never
appears during control test. Check “ALDL” ground plug. If not connected
properly, ECM will never give PerfectPass control. (Connects where “Diacom”
plugs into harness).
Problem #5 System Surges During Operation and During Control Test as
Described Below Reason – Poor ground. MasterCraft has had ground issues
on the ground wire for PerfectPass. Check all wires at ground bar and tighten as
required.
TESTING (CONTROL TEST)
To enter the Test Mode, press the Menu & UP Keys together and scroll down
and enter Device Test. Rope Test will first appear, press menu to enter
Servo/Control Test. This test can be performed in the shop or on water.
CONTROL 1.0
R RPM
In this test mode. Perfect
Pass requests control of the
ECM and maintains a
constant 1-volt level.
SERVO TEST
CONTROL 1.0
R RPM
SERVO TEST
CONTROL 1.0
R S
RPM
In this screen, the “S”
appears which indicates the
system is working properly.
TEST
Make sure system is in ON Mode prior to starting test. You must have an RPM
reading on PerfectPass display or it will never work properly.
With engine ON, lock the gearshift in neutral and advance the throttle
handle to 1800 RPM. When all is working correctly an “S” will appear next
to the “R” and the engine will hold at approximately 1730 RPM (it may
surge up and down by about 100 rpm). If the RPM is holding at 1730 but
the “S” is not on the display, there is a problem with the “STAT” line.
PerfectPass Control Systems (902) 468-2150 Page 3
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