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Use with: 
SystemCheck® Commander™  
Speedometer with Depth Sounder

Installation:

CAUTION:

 Disconnect the battery during 

installation. Tighten nuts on the 
backclamp only slightly more than you 
can tighten with your fingers. 

Six inch-

pounds

  of torque are sufficient. Over-

tightening could result in damage to the 
instrument and may void your warranty.

Mounting

1. Cut a 3-3/8” diameter hole in the dash 
and mount the gauge with the backclamp 
supplied.

The butt connectors have a heat activated 
waterproofing. Once the butt connections 
have been crimped, slowly apply heat with 
a heat gun until you see sealant coming 
out of the connector ends. It is 
recommended to wrap the connections 
together with electrical tape for further 
protection.

Two Wire Connector Socket

Follow the wiring diagram at the end of 
this manual for wiring connections. (See 
Diagram HN0357, 

Figure 4,

 page 8).

Four Wire Connector Socket

Connections for Speed input, Ignition and 
Ground.  Follow the wiring diagram at the 
end of this manual for wiring connections. 
(See Diagram HN0353, 

Figure 5, 

page 9).

Used for all splices.

Wires

Heat Shrink Tube

(red or blue)

Metal Butt Connector

(red or blue).

Used for all splices.

2 wire
Connector
 Socket

4 wire
Connector
Socket

4 wire

Connector

2 wire

Connector
  

 

Note: For wiring
diagram for the 
Two wire Connector
Socket see HN0357.

Note: For wiring
diagram for the 
Four wire
Connector Socket 
see HN0353.

Page 1

Figure 1

Summary of Contents for Johnson SystemCheck Commander

Page 1: ...Alarms Alarms are Audible and Visual Programmable Keel Offset Trip Log M IS0163A ECR 3550 04 2003 SystemCheck Commander Speedometer Depth Sounder Owner s Manual are trade marks of Bombardier Motor Co...

Page 2: ...Page 3 Shallow Alarm Page 4 Deep Alarm Page 4 Keel Offset Page 4 Units Page 4 Loss of Signal Page 5 Calibration Page 5 Figure 2 Speedometer LCD Display Modes Page 6 Quick Reference Guide Set Up Mode...

Page 3: ...ming out of the connector ends It is recommended to wrap the connections together with electrical tape for further protection Two Wire Connector Socket Follow the wiring diagram at the end of this man...

Page 4: ...display and to access sub menus and adjustable settings The Down and Up buttons are used to modify the settings In normal operation mode pressing the Mode button for a short period of time causes the...

Page 5: ...r the Trip Log between miles MI and nautical miles NM Calibration This menu item is used to simultaneously adjust the calibration of the Speedometer and the Trip Log Two methods of calibration are pos...

Page 6: ...larm To have this alarm indicate the depth of water under the deepest part of the hull the Keel Offset must be properly set Deep Alarm Pressing the Up or Down button changes the setting for the Deep A...

Page 7: ...nu There are two methods of calibration 1 A GPS or radar gun can be used to obtain a fixed speed While holding the boat at the selected speed press the Up or Down buttons to adjust the speedometer poi...

Page 8: ...if you have reason to believe that your setting is wrong Setting an incorrect value in this menu can result in extremely inaccurate performance of the speedometer To access the Setup Mode press and h...

Page 9: ...dometer full scale reading to match dial The microprocessor will automatically record the new setting as you modify it Pressing and holding the Mode button sets the instrument to normal operation Spee...

Page 10: ...urple White w Blue Stripe Pin A Purple 12 Ignition Power Pin B Purple 12 Ignition Power Pin C Black Ground Pin D White Blue Speedometer Input ECR 1903 12 21 01 Ignition Paddle Wheel Signal Paddle Whee...

Page 11: ...rink Tubing or Wrap Ground Small Plug CN0082 To Commander Blue Pin A Blue Depth Sounder Signal Pin B Black Depth Sounder Ground Pin C Not Used Pin D Not Used ECR 1903 12 21 01 Depth Sounder Signal Blu...

Page 12: ...Notes...

Page 13: ......

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