Deﬁ-Link Display VSD CONCEPT
Operation Manual
Nippon Seiki Co., Ltd.

Before Installation(for installation personnel)
Warning●●Carefully consider the installation location and driver's operation of the product before installation. Be
sure not to install the unit where it could fall. Improper installation or operation could cause the productto fall and damage the vehicle or cause serious danger by impeding driving.
●Do not disassemble or modify this product. Such actions can not only damage or destroy the productbut will also void the warranty.
disassemble/●Ensure that the vehicle will remain stationary and turn off the engine before installing this product.
modifyFailure to do so could result in a fire, and could make the vehicle move during installation.
●Do not perform installation of this product immediately after the engine has been switched off. The engine andexhaust system are extremely hot at this time and can cause burns if touched.
●Remove the key from the ignition and disconnect the negative (-) battery terminal prior to installation of this product.
Failure to do so could result in a fire caused by an electrical short circuit.
●Take care not to install this product in a way that interferes with safety equipment such as seat belts and air bag
systems or vehicle operation equipment such as engine controls, steering wheel or brake systems. Interference withnormal operation of the vehicle can result in an accident or fire.
●Ensure that the wiring of this product does not have an adverse impact on the other wiring of the vehicle. Any
controlling devices or other electronic components of the vehicle could be damaged.
●Use a solderless connector or similar device for wiring connections and make sure connections are insulated. In
areas where there could be tension or sudden impacts on the wiring, safeguard the wiring with corrugated tubing orother shock absorbent material. Accidental shorts can cause fires.
●Please keep children and infants away from the installation area. Children may swallow small parts or be injured inother ways.

Caution●This product is designed for use on 12V vehicles. Do not install this product on vehicles with 24V systems●Wear gloves to avoid burns when soldering and cuts when working with wiring.
●When the negative (-) battery terminal is disconnected, equipment such as clocks and audio
components having internal memory may lose their memory data. Follow the operation manual of eachcomponent to reset data after installation of this product.

24V

Confirmation●After installation is complete, return this operation manual to the customer along with the warranty.

About Installation and Operation(for customer and installation personnel)
Warning●Please have this product installed by the retail store or dealer where it was purchased. Installation by the customer
will void the warranty.
●In order to ensure safe driving, check the information on this display only for short periods of time. Looking at thedisplay for long periods of time could distract adequate attention from the road and result in an accident.
●Discontinue use of this product if nothing is displayed, water gets into the unit, or smoke or a strange odor comesfrom the unit. If such a condition occurs, contact the sales outlet or installation personnel as soon as possible.
Continued use while the condition exists could result in an accident or fire.
●Do not operate during driving.

Caution●Information other than speed and engine speed is not displayed if this product is not connected to Defi-Link System.
●The speedometer and tachometer display of this product are for reference purposes only. Please drive according to
the indication of vehicle's originally equipped instruments.
●This product can be used only on 3, 4, 5, 6, and 8 cylinder vehicles with 4 cycle engine. It cannot be used on diesel
vehicles.
●When this product is linked to Defi-Link System, connect the LINK connector of D.C.Unit and the METER OUTPUT1
connector of Defi-Link Control Unit II(or the METER connector of Defi-Link Control Unit) with the meter wire.
Misconnection could damage the product.
●When this product is linked to Defi-Link system, the tachometer signal must be input to Defi-Link Control Unit II(orDefi-Link Control Unit). Set the number of cylinders of Defi-Link Control Unit II(or Defi-Link Control Unit).
●Data on boost and intake manifold pressure cannot be displayed.
●When this product is linked to Defi-Link System, be sure to follow the instructions for Defi-Link Control Unit II(or DefiLink Control Unit).
●Do not pull the wires out of connectors by forcefully. The connectors may be broken and the wires may be cut.
When pulling out the wires, press the lock firmly and unclip the locks of connectors.

Installation (for installation personnel)
Warning●Carefully read the "Before Installation" and "About Installation and Operation" sections of the manual concerning installationand operation. Then install the product properly and safely. Installation in an unsuitable location or improper installation can
result in the product falling from its position or damage to the vehicle.

Caution●When installing the display, be sure to follow the instructions for Defi-Link Control Unit II(or Defi-Link Control Unit).

STEP１ Wiring

Caution●Do not pull the wires out of connectors forcefully. The connectors and thewires may be broken. When pulling out the wires, press the lock firmly andunclip the locks of connectors.

How to branch signal wire using solderless connector
wire from vehicle

Insert wire of attached parts.

【A-１】Power supply wire（ 2 1/2ft, 75cm）【A-２】Speed & tacho signal wire（ 6 3/5ft, 2ｍ） 【A-３】
Tachometer signal wire（4 3/5ft, 2ｍ）

Red：Battery(To 12V battery wire）
Orange：IGN(To 12V wire when ignition on)
Black：GND(To ground, negative
battery terminal）
White：+ILM(To 12V wire when small light on)※When this product is used without aconnection to the Defi-Link System,
the white wire is not necessary to
be connected. Insulate it.
5Pins(1pin is vacant.)

Green：Speed signal
Blue：Tacho signal
Engine computer unit(ECU)or ignition primary coil
※When connected to Defi-Link System,
do not connect the blue wire but
insulate it.
2Pins

Blue：Tacho signal
Engine computer unit(ECU)or ignition primary coil

2Pins(1Pin is vacant.)■When
When the Defi-Link Display VSD CONCEPT is used WITHOUT a connection to the Defi-Link System

Defi-Link Display VSD CONCEPT Wiring Diagram
Speed & tacho signal wirePower supply wire

Display film

DIM sensor
Display unit

D.C.Unit

１：Connect the power supply wire to the wiring of vehicle.(A-１）
２：Connect the other side of the power supply wire to DC SOURCE of D.C.Unit.
※There are two DC SOURCE connectors. Both connectors are usable.
３：Connect the speed & tacho signal wire(green & blue wires) to speed and tacho signal wire of the engine computer
unit(ECU) with solderless connectors.(A-２）
４：Connect the other side of the speed & tacho signal wire to SPEED&TACHO of D.C.Unit.
※In the case where this product is connected to Defi-Link System afterward, connect the white wire of the power
supply wire to the illumination wire(12V wire when small lamp is on) and then connect the tacho signal wire to
Defi-Link Control Unit II(or Defi-Link Control Unit).

■WhenWhen the Defi-Link Display VSD CONCEPT is used WITH a connection to the Defi-Link System※These procedures are applicable on condition that Defi-Link Control Unit II(or Defi-Link Control Unit) and the power
supply wire have been installed.

Defi-Link Display VSD CONCEPT and Defi-Link System Wiring Diagram

Display Film
Defi-Link Meter BF

Defi-Link Display
METER OUTPUT2

DIM sensor

Defi-Link Display
VSD CONCEPT
Display unit

Speed & Tacho signal wire
※Do not connect the blue wire(tacho signal).
Tachometer signal wirePower supply wire
sensor wires

Display wirePower supply link wire
METER OUTPUT1

Defi-Link Display

Defi-Link Control Unit II(or Defi-Link Control Unit)

Defi-Link Display
VSD CONCEPT
D.C.Unit

Defi-Link Meter

１：Disconnect the previously connected power supply wire from Defi-Link Control Unit II(or Defi-Link Control Unit).
２：Connect the disconnected power supply wire to DC SOURCE of D.C.Unit.
※There are two DC SOURCE connectors. Both connectors are usable.
３：Connect DC SOURCEs of Defi-Link Control Unit II(or Defi-Link Control Unit) and D.C.Unit using the attached power
supply link wire.
４：In the case where a meter wire is already connected to METER OUTPUT１ of Defi-Link Control Unit II(or METER of
Defi-Link Control Unit), disconnect the meter wire.(If METER OUTPUT1 of Defi-Link Control Unit II is not in use, skip thenext procedure and go to 6.)
５：Connect the disconnected meter wire to LINK of D.C.Unit.
※There are three LINK connectors. All three connectors are usable.
６：Connect METER OUTPUT 1 of Defi-Link Control Unit II and LINK of D.C.Unit using the attached meter wire.(Connect
METER of Defi-Link Control Unit and LINK of D.C.Unit with the attached meter wire.)※There are three LINK connectors. All three connectors are usable.
７：Connect the attached tachometer signal wire(blue) to the tacho signal wire of engine computer unit（ECU) using theattached solderless connector. In the case where a tachometer signal wire(blue) is already connected to Defi-Link
Control Unit II(or Defi-Link Control Unit), skip this procedure. Leave the tachometer signal wire(blue) and go to 9.
８：Connect the other side of tachometer signal wire to TACHO of Defi-Link Control Unit II(or Defi-Link Control Unit).
※Be sure to connect the tachometer signal wire(blue) to TACHO of Defi-Link Control Unit II(or Defi-Link Control
Unit). If it is connected to only D.C.Unit, the engine speed will not be displayed.
９：Connect the green wire of speed & tacho signal wire(speed signal) to the speed signal wire of engine computer
unit(ECU) using the attached solderless connector.
※The blue wire of the speed & tacho signal wire is not necessary to be wired. Insulate and bind up the wire so as
not to interfere with driving.(A-２)
１０：Connect the other side of the speed & tacho signal wire to SPEED＆TACHO of D.C.Unit.

STEP２Check Wiring

１：Connect the display wire of Defi-Link Display VSD CONCEPT to DISPLAY UNIT of D.C.Unit.
２：Check that all the wires are properly connected.
３：Turn on the ignition of vehicle and make sure the display is lighted.（The display looks inverted on the display unit.）
４：If the display is lighted, go to the next step. If not, go back to STEP1(WIRING) and rewire.

STEP３

Applying the Display Film

Warning●Display must be projected on the bottom 5in(130mm) of the windshield. Consult with customer about the place of
display projection. Attach the display unit in a location which will not hinder driving. Comply with the law concerning
vehicle safety in your district.
●The display is viewable even without the display film. The transmittance of the display film is about 45%. We are
not responsible for any damage or problems arising from the use of the display film applied on the windshield.
Please follow the local regulations as for attaching the display film.
１：Wipe off tarnish and stain on the windshield.
２：Position the display unit and the display film in place. Mark a corner of display film with adhesive tape.
３：Separate the display film from the backing paper using adhesive tape as shown in the following figure.
４：Spray a mixture of water(150ml:5oz) and mild detergent(1 or 2drops) on the windshield and the display film. Attach thefilm to the windshield in a longitudinal direction.
※Dismount the display unit for a time to protect it from getting wet. Spread a towel on the instrument panel.
５：Gently squeeze out water and air bubbles under the film using a spatula. Wipe extra water with tissue.

Display film

Display unit

under 5in
(130mm)Adhesive tape

Display film

D.C.Unit
Defi-Link Control UnitⅡ(or Defi-Link Control Unit)※Do not expose D.C.Unit and Defi-Link Control Unit II(or Defi-Link Control Unit) to direct sunlight.

STEP４

Installation of Display Unit and DIM Sensor

Warning●Improper installation could cause the product to fall and damage the vehicle or cause serious danger by impeding driving.
・Attach the display unit in a location which will not hinder driving.
・Make sure that both the display unit and D.C.Unit are firmly attached.

Confirmation●When leaving car under the direct sunlight, cover the display unit with a white cloth. It prevents the unit from deterioration.
●Before attaching units using double-sided tape, make sure they are clean.
１：Tighten temporarily the bracket A and the display unit using a Phillips screwdriver and adjust the
Front
rotative direction.(B-１）※Bracket A can be attached to the display unit in any direction(upside down, front/back). Determine
the location of the display unit where the display is the most clearly projected on the windshield.
Back
２：Tighten temporarily Bracket B and the display unit to adjust the angle using an Allen wrench.(B-2）
３：Identify the location and angle the display unit on the instrument panel. Then fully tighten Bracket A Bracket Ａ
where the display is clearly projected on the windshield.
４：Connect the DIM sensor to the connector on the backside of display unit.
５：Dismount the display unit from Bracket B. Attach Bracket B on the instrument panel using doublesided tape. Bend Bracket B fitting to the form of instrument panel. Set Bracket B using sheet-metalscrews(commercialy available).
６：Fit the display unit into Bracket B and fully tighten.
７：Attach the DIM sensor to the side of display unit towards the direction of movement using doubleBracket Ｂ
sided tape.(B-３）※To perceive the anterior brightness, the sensor must not be interrupted by wipers and things.

【Ｂ-１】

【Ｂ-２】

【Ｂ-３】

※Use double-sided tape as follows:

D.C.Unit

Bracket B
DIM sensor

Bracket Ｂ

DIM sensor

After the installation is done, the next step is the set-up of functions. Please refer to the backside of this manual.
The quick reference chart for the set-up is printed on the inside of the package.

Trouble Shooting(for customer and installation personnel)
Warning●If operation of the product seems unusual, inspect the product to confirm that there is no malfunction. If an
operational problem has occurred, it could result in an accident.
※In addition to a general inspection of the product, use the following table to confirm proper operation of the unit. If theoperational problem does not appear in the following table, contact the installation personnel.

Condition○Does not display.
○The engine speed is not
displayed correctly.

Possible Cause

Corrective Action○Check wiring as per instructions in this manual.
○Wiring of the power supply wire or the
display wire is improper.
○Wiring of the tachometer signal wire is○Check wiring as per instructions in this manual.
wrong.
○Setting of the number of cylinders is○Check the number of cylinders as per instructions
wrong(D.C.Unit/Defi-Link Control Unitin this manual, Defi-Link Control Unit II manual, or
II/Defi-Link Control Unit).
Defi-Link Control Unit manual.
○LINK of D.C.Unit and METER OUTPUT2 ○Connect LINK of D.C.Unit and METER OUTPUT1of Defi-Link Control Unit II are connected.
of Defi-Link Control Unit II using the meter wire.
○The tachometer signal wire is not○Connect the tachometer signal wire to Defi-Link
connected to Defi-Link Control Unit II orControl Unit II(or Defi-Link Control Unit).
Defi-Link Control Unit (in the case thatthe product is connected to the Defi-Link
System).

○The speed is not displayedcorrectly.

○Wiring of the speed signal wire iswrong.
○Setting of the speed pulse is wrong.

○Check wiring as per instructions in this manual.
○Check the speed pulse as per instructions in thismanual.

○The auto dimmer mode ison, but the display is darkor the brightness of thedisplay doesn't change.

○The DIM sensor is not connected.
○The front of the DIM sensor is
obstructed.
○The manual dimmer mode is selected in
the setting of the illumination control.

○Connect the DIM sensor as per instructions in thismanual.
○Attach the DIM sensor in a position without any
obstruction which interrupts the front of the sensor.
○Reset the illumination control setting as per
instructions in this manual.

○Does not carry out theclosing mode.

○The wiring of the red line of the power
supply wire is wrong.

○Check wiring as per instructions in this manual.

○The product is connected to ○The REC button is pressed when thethe Defi-Link System, but
vehicle is stopped.
the speed is not recorded.

○Press the REC button when the vehicle is moving.

○Switching of the unit
○The condition is normal.
illumination is notinterlocked with switching of
the vehicle illumination.

○Switching of D.C.Unit illumination is interlockedwith turning on/off the ignition.

Operation(for customer)
1.Set-Up Mode(Screen for setting units and display data parameters)

Confirmationn●Be sure to make preparatory settings. The unit will not operate properly without settings being made.
●Set up while the vehicle is stopped.
When changing the factory settings shown below, pressing the SET UP(ENTER) button for more than 2 seconds after the
opening mode has completed will bring up the setting mode for units. In set-up mode, the item to be set changes each time
the SELECT▽ or BAR SELECT▲ buttons are pressed. When adjustment of a particular setting is needed, press the
ENTER button. To quit the set-up mode, press the SET UP(ENTER) button for more than 2 seconds.

①

②

③

Item

⑤

⑥

⑦

⑧

⑨

⑩

⑪

Factory Setting

Item

kPa、℃、km/h⑦Bar Display

ON４⑧Warning Buzzer

ON

４Auto Warning

ON

Water Temp. 40℃(104°F)/
Oil Temp. 60℃(140°F)⑩Illumination Control⑪Control Out

Manual①Units②Speed Pulse
Number of Cylinders④Warm-Up④⑤Special Display

ON⑥Tachometer Warning

Factory Setting

Water Temp. 80℃(176°F)/
Oil Temp. 100℃(212°F)

１→７０００、２→８①Setting of Units
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectunits（kPa、℃、km/h or PSI、°F、MPH）, then press ENTER to set the desired units.
Set-up mode

Units setting②Setting of Speed Pulse
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to select the
speed pulse number, then press ENTER button to set the selection.
２

４

８

１６

FREE(Free pulse setting)Speed pulse setting<Speed pulse number>The speed pulse number differs by model of vehicle. Consult your local car dealer if
you are not certain of the speed pulse number for your vehicle.
<Free pulse setting>For vehicles having a speed pulse outside 2, 4, 8, 16 pulse, the speed pulse can be set
by switching to the "FREE" screen by pressing and holding the ENTER button for morethan 2 seconds. After the screen changes to pulse set screen(SET.P blinks), press
ENTER button while the vehicle is moving at 60km/h or 40MPH.
※Ask fellow passengers to set up. Do not set up at the wheel.
※It may be unable to be adapted for some models of vehicle.

Pulse free setting

Hold

Speed pulse setting

Press ENTER button while the vehicle is moving at 60km/h or 40MPH.
NOTE: The pulse free setting needs to be done again if units are changed.
③Setting of Number of Cylinders
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectthe number of cylinders, then press ENTER button to set the selection.
３

４

５

６

８

Number of cylinders setting

Set 2 rotary engine at 4 cylinders and 3 rotary engine at 6 cylinders.
NOTE: If the Defi-Link Display VSD CONCEPT is linked with the Defi-Link System, the setting of DefiLink Control Unit II(or Defi-Link Control Unit) is prioritized.
④Setting of Warm-Up
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectwater temperature, oil temperature, or OFF. Then press ENTER button to set the selection. Use
SELECT/BAR SELECT button to set the desired temperature. If SELECT/BAR SELECT button is pressedand held, the number is fast-forwarded.
Range of setting
W.TEMPOIL T.
OFF
Water temp：21℃〜120℃(69°F〜248°F)
Oil temp：51℃〜150℃(123°F〜302°
F)
Warm-Up setting

NOTE: This function operates when the Defi-Link Display VSD CONCEPT is linked with the Defi-Link
System and the temperature sensor is connected.
⑤Setting of Special Display
If ON is selected, the engine speed is displayed in digital when speed is 0km/h or 0MPH for more than 10
seconds. Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button
to select ON or OFF.
ON

OFFSpecial display setting

⑥Setting of Tachometer Warning
Press ENTER button when the following figure is displayed. Green LED is lighted up. Use SELECT/BAR
SELECT button to set the desired warning1 value. Press ENTER again. Green and red LEDs are lighted
up. Use SELECT/BAR SELECT button to set the desired warning2 value. If SELECT/BAR SELECT button
is pressed and held, the number is fast-forwarded.
Range of setting
Tachometer Warning１：
1,000RPM〜9,900RPM
Tachometer Warning２：larger value than warning1〜9,900RPM
Tachometer Warning setting

Tachometer Warning1 setting（Green LED lights up.）

Tachometer Warning2 setting（Green & red LEDs light up.）

NOTE: If the Defi-Link Display VSD CONCEPT is linked with the Defi-Link System, the tachometer
warning2 cannot be set. The setting value of the tachometer warning of Defi-Link Control Unit
II(or Defi-Link Control Unit) is applied as a tachometer warning2. Please set up the tachometer
warning of Defi-Link Control Unit II(or Defi-Link Control Unit) higher than the tachometer
warning1 value. If the value is set lower than the warning1, the warning1 will be invalid.
⑦Setting of bar display
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectON or OFF of the bar display.
Bar Display setting⑧Setting of Warning Buzzer
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectON or OFF of the warning buzzer.
Warning Buzzer setting

NOTE: If the Defi-Link Display VSD CONCEPT is linked with the Defi-Link System, the warning buzzer
of Defi-Link Control Unit II cannot be absorbed.

⑨Setting of Auto Warning
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectON or OFF of the auto warning function.
Auto warning setting

NOTE: This function operates when the Defi-Link Display VSD CONCEPT is linked with the Defi-Link
System.
⑩Setting of Illumination Control
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectauto or manual of the dim control mode.
Dim Control setting

Manual dimmer mode

Auto dimmer mode

When the auto dimmer mode is on, the brightness of the display is adjusted automatically. Press
ENTER to Select one from three stages of brightness in the auto dimmer mode during the real mode or
the peak mode. When the manual dimmer mode is on, the brightness of the display can be set
manually at 5 stages in the real mode or the peak mode.
⑪Setting of Control Output
Press ENTER button when the following figure is displayed. Use SELECT/BAR SELECT button to selectwater temperature, oil temperature, or OFF. Then press ENTER button to set the selection. Use
SELECT/BAR SELECT button to set the desired temperature. If SELECT/BAR SELECT button is pressedand held, the number is fast-forwarded.
Range of setting
W.TEMPOIL T.
OFF
Water temp：21℃〜120℃(69°F〜248°F)
Oil temp：
51℃〜150℃(123°F〜302°F)
Control Output setting

NOTE: This function operates when the Defi-Link Display VSD CONCEPT is linked with the Defi-Link
System and the temperature sensor is connected.

２. Opening and Ending Mode
Opening and ending modes are performed after the ignition key is turned on and off.
Opening mode

Ending mode

３. Operation Mode
Illumination control
When the auto dimmer mode is selected in the setting of illumination control, the brightness of display isadjusted automatically depending on the outside light. The brightness can be selected from three stages bypressing the DIM(ENTER) button. When the manual dimmer mode is selected, the brightness of display isfixed. The brightness can be selected from five stages by pressing the DIM(ENTER) button.

BRIGHT
Auto dimmer mode
Manual dimmer mode

M-５

DARK
A-L３

A-L２

A-L１

M-４

M-３

M-２

M-１

■When
When the Defi-Link Display VSD CONCEPT is used WITHOUT a connection to the Defi-Link System①Real Mode
The actual vehicle speed is displayed digitally and the engine speed is displayed in
the bar section. When the engine speed exceeds the warning value set as thetachometer warning1 in the setting of tachometer warning, the green LED lights up.
When it exceeds the tachometer warning2, the green and red LEDs blink.

②Peak Mode
Pressing the PEAK button during Real Mode will bring up Peak Mode. Recorded
peak values for speed and engine speed will be displayed. Pressing the PEAK button
again during Peak Mode will return to Real Mode.

③Peak Reset Mode
During either Real Mode or Peak Mode, the peak values will be reset by pressing andholding the PEAK button for more than two seconds.

④Special Display Mode
If Special Display Mode is turned on in the setting of special display and speed is
0km/h or 0MPH for more than 10 seconds in Real Mode, special display will start. In
this mode, the engine speed is displayed digitally. When speed is more than 0km/h or
0MPH or when any button of D.C.Unit is pressed, the display will return to Real Mode.

■WhenWhen the Defi-Link Display VSD CONCEPT is used WITH a connection to the Defi-Link System※For operations ① through ⑨ shown below, refer to the Operation Manual for Defi-Link Control Unit II(or DefiLink Control Unit.

①Real Mode

The actual data on current speed, engine speed, oil pressure, fuel pressure, oil temperature, water temperature, andexhaust temperature is displayed in this mode. Each time the SELECT/BAR SELECT button is pressed, the displaysof the digital and bar section will change in the following order. Data without sensors connected cannot be selected.

Digital Display
SectionBar Display
Section

Speed

Water temp.

Engine speed

Oil temp.

Oil press.

Oil press.

Fuel press.

Exhaust temp.

Fuel press.

NOTE: If "MPH, °F, PSI" is selected in thesetting of units, data other thanthe engine speed is not displayed.

When the engine speed exceeds the warning value set as the tachometer warning1 in the setting oftachometer warning, the green LED lights up. When it exceeds the tachometer warning2, the green and red
LEDs blink. The tachometer warning2 cannot be set in the setting of tachometer warning.

②Peak Mode

By pressing the PEAK button of Defi-Link Control Unit II(or Defi-Link Control Unit) during Real Mode, Peakvalues are displayed. Displayed data will be changed by pressing SELECT/BAR SELECT button. Pressing the
PEAK button again during Peak Mode will return to Real Mode.
Digital Display
SectionSpeed Maximum
Fuel press.

Speed Minimum
Exhaust temp.

Engine speed
Water temp.
Oil press.
Oil temp.

Note)When displaying the speed minimum value, the unit(km/h or MPH) blinks and theminimum value recorded in Rec Mode is displayed.
Bar Display
SectionEngine speed

Oil press.

Fuel press.

NOTE: If "MPH, °F, PSI" is selected in thesetting of units, data other thanthe engine speed is not displayed.

NOTE: When connected to the Defi-Link System, the PEAK button of the D.C.Unit is unavailable.

③Peak Reset Mode
When the UP button of the Defi-Link Control Unit II is pressed in Peak Mode(or when
the PEAK button of the Defi-Link Control Unit is pressed and held for more than two
seconds in any of Real Mode, Peak Mode or Warning Mode), the peak values will bereset.
NOTE: When connected to the Defi-Link System, the PEAK button of the D.C.Unit is unavailable.

④Special Display Mode
If Special Display Mode is turned on in the setting of special display and speed is
0km/h or 0MPH for more than 10 seconds in Real Mode, special display will start. In
this mode, the engine speed is displayed digitally. When speed is more than 0km/h or
0MPH or when any button of D.C.Unit is pressed, the display will return to Real Mode.

⑤Warning Set Mode
Engine Speed

Oil Temp.

Boost※Examples of display
Pressing the WARN SET button of Defi-Link Control Unit II(or pressing the SELECT button of Defi-Link Control Unit)
will bring up Warning Set Mode. To set the warning value, please refer to the operations manual of Defi-Link Control
Unit II(or Defi-Link Control Unit).

⑥Warning Mode
When current values exceed the values set as warnings by using Defi-Link Control Unit II(or Defi-Link Control
Unit) and when disconnection or short circuit of sensor wires or sensors are detected, the screen indicates thewarning.
※Priority is given to the tachometer warnings over other warnings.
※Warnings on boost and intake manifold pressure are not indicated.
※The warning on oil pressure is not indicated while the vehicle speed is under 10km/h(6MPH).

I)If the auto warning mode is turned ON in the setting of auto warning

When a current value exceeds the set value, the red LED and the name of the data blink. A buzzer sounds
at the same time if warning buzzer is turned on. One minute later, the red LED and the name of the datastop blinking and start lighting and the current warning value is displayed. When several values exceed thewarning set values, the latest warning is indicated. Pressing the ENTER button will return to the last display
before the indication of warnings. If the value still exceeds the set value, the name of the data will continue
to blink.

II)If the auto warning mode is turned OFF in the setting of auto warning

When a current value exceeds the set value, the red LED and the name of the data blink. A buzzer sounds
at the same time if warning buzzer is turned on. One minute later, the red LED goes out, the buzzer is
stopped, and the name of the data blinks faster. The red LED lights up and a buzzer sounds again if thewarning data is selected to display in the digital display section by using the SELECT button. When several
values exceed the warning set values, the name of data which is being displayed in the digital display
section light up and other names blink.

⑦Self-Diagnosis Function
Disconnection(open)
This display means that a wire disruption, disconnection or improper wiring
connection has occurred at the sensor or in the sensor wire.
Short circuit
This display means that a short circuit has occurred somewhere at the sensor or in
the sensor wire.
Serial error
This display means that communications between Defi-Link Display VSD CONCEPT
and the Defi-Link system have been interrupted.
Setting Error of number of cylinders"x1000RPM" blinks if the number of cylinders of Defi-Link Control Unit II(or Defi-Link
Control Unit) is not set or if the METER OUTPUT2 connector of Defi-Link Control Unit
II and the LINK connector of D.C.Unit is connected by error.

⑧Rec Mode
When the vehicle is moving at the speed of 1km/h(1MPH) or more, connected sensor
data and the speed data are recorded for a maximum of 3 minutes by pressing the
REC button of Defi-Link Control Unit II(or Defi-Link Control Unit). "R" is displayed
during recording. Data displayed in the digital and bar display section can bechanged by pressing SELECT/BAR SELECT button.
NOTE: Even if REC button is pressed in vehicle's stopped condition, the vehicle speed data cannot berecorded and Rec Mode will turn to Play Mode.

⑨Play Mode
When the vehicle speed is 0km/h(0MPH), recorded data are displayed by pressing the
PLAY button of Defi-Link Control Unit II(or by pressing the PLAY/REC button of DefiLink Control Unit during Peak Mode). "P" is displayed during playing of data. Data
displayed in the digital and bar display section can be changed by pressing
SELECT/BAR SELECT button.
NOTE: Once pause, fast-forward or rewind is performed with Defi-Link Control Unit II(or Defi-Link Control Unit), therecorded speed data cannot be played back. To play back the speed data, Play Mode needs to be started
over again. Operation needs to be performed in vehicle's stopped condition. If the PLAY button is pressedin vehicle's running condition, speed data will not be played back but Play Mode will turn to Rec Mode.

⑩Warm-Up Mode

This Warm-Up Mode is available when either a water temperature sensor or an oil temperature sensor isconnected to Defi-Link Control Unit II（or Defi-Link Control Unit) and the setting of Warm-Up is completed. After
Opening Mode, Warm-Up Mode starts if the sensor data is below the set value. During this mode, leftmost
digital segments are lighted in order. If the displayed data is changed by pressing the SELECT button during
this mode, the unit of temperature blinks(℃/°F). When the temperature reaches the set value, Warm-Up Modeis completed and returns to Real Mode.

⑪Control Output
This Control Output function is available when either a water temperature sensor or an oil temperature sensor
is connected to Defi-Link Control Unit II（or Defi-Link Control Unit) and the setting of Control Output iscompleted. When the temperature reaches the set value, the Control Output signal is read out to the terminal of
CONT. OUT of D.C.Unit.

Caution●Do not connect anything to the CONT. OUT connector unless this function is used.
●Load current of the Control Output is less than 300mA.
●When the special display is performed, the Control Output signal is not read out.
●Any damages to other products connected to the CONT. OUT connector is not covered by the warranty.

a)Example on direct hookup of awarning lampb)Example of how to connect a motor by using a relay and how toload a LED indicator
Connect to 12V wire when ignition is on.

Connect to 12V wire when ignitionis on.
Lamp

Diode
Relay

CONT. OUT
connector(red)MotorResistor
LED
Indicator

CONT. OUT
connector(red)Simplified Set-up Chart
SET: Setting of units "kPa, ℃, km/h" or "PSI, °F, MPH"SPEED SET: Setting of speed pulse
PULSE-4: Select the proper speed pulse from 2, 4, 8, and 16.
FREE: Set speed pulse other than 2, 4, 8, or 16.
TACHO-SET: Setting of number of cylinders
ENGINE-4: Select the proper number of cylinders from 3, 4, 5, 6, and 8.
WARM-UP: Setting of warm-up function
SPECIAL: Choose ON or OFF of special display.
TACHO-REV: Setting of warning value for engine speed
TACHO-BAR: Choose ON or OFF of bar display.
WARNING-BUZZER: Choose ON or OFF of buzzer sound.
AUTO-WARNING: Choose ON or OFF of auto warning display.
DIMMER: Choose AUTO or MANUAL of illumination control.
AUTO-DIMMER: Auto dimmer control
MANUAL-DIMMER: Manual dimmer control
AUTO-LEVEL3: Select one from three levels of brightness in auto dimmer mode.
MANUAL-3: Select one from five levels of brightness in manual dimmer mode.
CONTROL-OUT: Setting of control output function
OPEN: Disconnection of wire and/or sensor is detected.
SHORT: Short circuit of wire and/or sensor is detected.
ERROR: Serial error is detected.

Refer to the operation manual for the details.