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Trouble shooting guide
Problem
Tachometer will not work.
lights are off.
Tachometer will not work.
dot is on steady.
Tachometer will not work.
dot is flashing.
Tachometer will not
read at low RPM.
Tachometer will not
read at high RPM.
Tachometer will read
when the engine is off
DAKOTA DIGITAL offers complete service and repair of its product line. In addition, technical consultation is available to help you work
through any questions or problems you may be having installing one of our products. Please read through the Troubleshooting Guide. There, you will
find the solution to most problems.
Should you ever need to send the unit back for repairs, please call our technical support line, (605) 332-6513, to request a Return
Merchandise Authorization number. Package the product in a good quality box along with plenty of packing material. Ship the product by UPS or
insured Parcel Post. Be sure to include the RMA number on the package, and include a complete description of the problem with RMA number, your
full name and address (street address preferred), and a telephone number where you can be reached during the day. Any returns for warranty work
must include a copy of the dated sales receipt from your place of purchase. Send no money. We will bill you after repair.
DAKOTA DIGITAL warrants to the ORIGINAL PURCHASER of this product that should it, under normal use and condition, be proven
defective in material or workmanship for the lifetime of the original vehicle it was installed in, such defect(s) will be repaired or replaced at Dakota
Digital's option.
This warranty does not cover nor extend to damage to the vehicle's systems, and does not cover diagnosis, removal or reinstallation of the
product. This Warranty does not apply to any product or part thereof which in the opinion of the Company has been damaged through alteration,
improper installation, mishandling, misuse, neglect, or accident. Dakota Digital assumes no responsibility for loss of time, vehicle use, owner
inconvenience nor related expenses.
Dakota Digital will cover the return standard freight once the product has been evaluated for warranty consideration, however the incoming
transportation is to be covered by the owner.
This Warranty is in lieu of all other expressed warranties or liabilities. Any implied warranties, including any implied warranty of
merchantability, shall be limited to the duration of this written warranty. No person or representative is authorized to assume, for Dakota Digital, any
liability other than expressed herein in connection with the sale of this product.
WARNING: This product can expose you to chemicals including lead, which is known to the
State of California to cause cancer and birth defects or other reproductive harm. For more
information go to
Possible Cause
No power to DSL1.
No input signal.
DSL-1 set for wrong input
type.
Grounding interference.
Wrong output type.
High voltage boost required.
DSL-1 set for wrong input
type.
Tach signal is too low.
DSL-1 set for wrong input
type.
Ignition wire too close to
sensor signal wire.
Signal In and OUT wires
routed too close.
Ground interference.
Sensitivity set incorrectly
SERVICE AND REPAIR
Dakota Digital Limited Lifetime Warranty
www.P65Warnings.ca.gov
Solution
Check the power and ground terminals
on the DSL-1. Should be 11-15 V dc.
Test for 1-20 volts AC at the signal
in terminal with the engine running.
Change the Setup – SIG option.
See instructions on page 1.
Make sure both the speed sensor and
DSL-1 are grounded at the same point.
Try switching from normal output
to the high voltage output.
Use HI VOLT to drive gauge and jumper
NOT USED terminal over to HI VOLT.
Change the Setup – SIG option to LO.
See instructions on page 1.
Check sensor connections for ground
problems or shorts. Test the ground
connection between DSL-1 and sensor.
Check for another device loading down
the sensor.
Change the Setup – SIG option to HI.
See instructions on page 1.
Route the sensor signal and ignition
or injector wires away from each other
to avoid interference.
Route the input and output wires away
from each other to avoid feedback.
Make sure the speed sensor and DSL-1
are grounded together.
Change the Setup – SIG option to HI.
6
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