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Firstech CM-900 User Manual

Firstech CM-900
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7
STEP 2: Test wire and make connection. With the vehicle off the wire should test 0 Volts AC. At idle the
tach wire should test between 1 to 5 Volts AC. As the vehicle RPM’s increase the voltage on the meter
will also increase. Always solder tach connections.
STEP 3: Learn tach. While the vehicle is at idle, hold the foot brake and press and hold the remote start
button on the remote control for 3 seconds.
The parking lights will flash once to confirm a good tach signal. The parking lights will flash three times to
indicate the tach did not learn. Two seconds following the three flashes, the number of parking light
flashes will indicate the cause of the error;
Alternator Sensing Option 2-10 Setting 3
Alternator sense is an optional method the control module can use to verify if the engine is running. This
is different than tachless sensing so the yellow/black wire connection must be made. IMPORTANT: No
other option programming is required.
STEP 1: Change Option 2-10 to setting 3 - Alternator Sensing.
STEP 2: Test wire and make connection. The stator wire is found at the vehicle’s alternator. Change
your meter to DC before testing for this wire.
A. At rest, with the ignition off, the stator wire should test 0V DC.
B. Turn the ignition to the run position. The stator wire should now test between 1 6V DC.
C. Start the vehicle with the key. The stator wire should now test between 12 14V DC at idle.
STEP 3: Process complete no further programming required.
Assumed Timed Crank Option 2-10 Setting 4
Assumed Time Crank is the last feature of Option 2-10 for remote starting. This is intended for vehicles
with built-in anti-grind feature or that do not have a +12V Positive starter wire at the ignition harness. This
option will send a 3 second crank signal to the vehicle. This option can be used on vehicles with built in
anti-grind systems.
Automatic Transmission Remote Start Function
Hold the button for 3 seconds to remote start an automatic transmission vehicle. If you are in range
and the vehicle is ready to remote start, the parking lights will flash once.
If you are in range and the parking lights flash three times followed by a certain number after that, there
is a remote start error. Refer to the “remote start error diagnostic” table under the Troubleshooting
section of this manual for details.
Upon confirmation that your vehicle is running, the parking lights will light solid. The remote start run time
can be set for 3, 15, 25, or 45 minutes. Option 3-01 will adjust the remote start run time. This should be
Number of Parking Light
Flashes
Tach Error
1
Option 2-10 is not on setting 2
2
Key is in the off position
3
Bad tach signal. Find a different wire.

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Firstech CM-900 Specifications

General IconGeneral
BrandFirstech
ModelCM-900
CategoryRemote Starter
LanguageEnglish

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