INSTALLATION INSTRUCTIONS
Electric programmable SPEEDOMETER
2650-1512-00
QUESTIONS:
If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s),
please contact Auto Meter Technical Service at 815-899-0801.
You may also email us at service@autometer.com.
Additional information can also be found at http://www.autometer.com/tech_faq.aspx
General Information
This electric speedometer utilizes a LCD to display odometer and trip odometer mileage. Momentarily pressing the Trip/Reset button on the dial
window cycles the odometer, trip 1, and trip 2 displays on the LCD. Pressing and holding the Trip/Reset button for more than two seconds while
in either trip mode, will reset the trip odometer currently being displayed. The odometer cannot be reset.
Auto Meter electric speedometers are pre-calibrated. When converting from a cable driven speedometer further calibration may not be needed if:
1. The transmission’s speedometer cable take off is 1000 RPM at 60 MPH (97 km). Most vehicles meet this requirement.
2. The vehicle is equipped with a 16-pulse/revolution sender.
3. The speedometer that includes a 2-wire sender is pre-calibrated to 8 pulses/revolution to match this sender.
If the above conditions have not been met, the speedometer must be recalibrated (see calibration section). Also, if the vehicle’s tire size and/
or differential ratio has changed, the speedometer needs to be recalibrated.
NOTE: The odometer on this speedometer will show some mileage less than 5 miles (8 km). This is a result of factory testing to insure optimum quality.
Speedometer Senders
The speedometer is designed to operate with an electrical speed sender. The speed sender signal range must be between 500 and 400,000
pulses/mile (310 and 248,500 pulses/km). Any speed sender or electronic module that meets the following two conditions can be used:
1. Pulse rate generated is proportional to vehicle speed.
2. Output voltage within the ranges listed below:
• Hall effect sender, 3-wire (5 to 16V)
• Sine wave generator, 2-wire (1.4 VAC min.)
• 5V Square wave (CMOS)
Recommended – Auto Meter Hall effect sender, 3-wire 16 pulses/revolution.
5291 Standard 7/8 – 18 thread
5292 Ford, plug in
Installation Tips
1. A 12 V power source MUST be used to power this speedometer. A 12V motorcycle battery is a good alternative for cars without batteries.
A battery with minimum 5 amp hour rating is recommended.
2. Wherever possible, solder wire connections and avoid crimp-type connectors. This will minimize loose connections that could cause problems later.
3. Make sure you have a good ground to engine and battery negative terminal.
4. Wire installations should be neat and tied down to prevent tugging and fraying of wires at connections.
Wiring
CAUTION!
As a safety precaution, the power wire to this product should be fused before
connecting it to the positive (+) side of the 12 VDC battery. We recommend using a
1 Amp fuse.
Auto Meter Hall-Effect senders (Square Wave)
- Models 5291 (standard 7/8-18 thread) & 5292
(Ford Plug in Sensor), 3 wire sender, cruise.
WHITE OR CLEAR
RED
GROMMET BLACK
GND
Remove cap for cruise
control cable, otherwise
leave cap installed. 12 Volt Dash Light
(white)
3-Wire Sender a se
oc
int
FUSE Back of bu
lb
ht
speedometer ap
lig Ground
Sn
(SEE CAUTION) (black)
12V
IGNITION Use 20 AWG stranded or
SWITCH heavier wire for hook-up
Most OEM style or Factory Installed,
2 wire senders (Sine Wave) (OR) Violet Orange VSS to ECM
(see Note)
Red
IMPORTANT
When using most OEM/factory installed
(2 wire) senders, you must calibrate the
speedometer before it will function properly. Black
GND
Use 20 AWG stranded or
heavier wire for hook-up
OR IF COMPUTER
IF NO CONTROLLED,
COMPUTER TAP ONTO
HI-SIDE V.S.S.
HI SIGNAL
HI
Good Engine Ground
GROMMET LO
LO
Sine NOTE: The speedometer signal output wire (VSS)
Sine PCM,
Wave produces a +5 volt DC Square wave signal.
Wave GND ECM,
2 Wire 2 Wire This signal may be able to be used as a VSS
Sender COMPUTER
Sender signal with some OEM and aftermarket ECM’s
V.S.S. and cruise control units.
Mounting
1. Mount this instrument in a 3-7/8" dia. hole.
2. Cut a 3 /8" dia. hole in the firewall for the speedometer wires. Place a rubber grommet
in the hole and route the wires through the grommet to the engine compartment.
3. Connect the speedometer wires as shown in the wiring sections.
4. Secure the speedometer to the dashboard using the provided bracket and hardware.
Calibration (Electric Speedometer calibration made easy!)
To calibrate your electric speedometer:
1. With the power off, push and hold the Trip/Reset button. While holding the button, start the vehicle and continue to hold the button until the
pointer sweeps to full scale and stays at full scale. You may now release the button.
2. Drive to the beginning of a pre-marked 2 mile (2 kilometer) distance and stop. It does not matter how far away it is to get to this pre-marked
2 mile (2 kilometer) mile distance. Do NOT shut the engine off. Push and release the Trip/Reset button. The pointer will drop to half scale.
3. Drive the 2 mile (2 kilometer) distance. The pointer will remain at the half scale position no matter what speed you drive. It will be normal to see the
LCD odometer counting rapidly as it is receiving a speed signal. If you have to stop during the calibration, that is o.k. The speedometer will simply
stop counting pulses during this time.
4. At the end of the 2 mile (2 kilometer) distance, stop and press and release the Trip/Reset button. The pointer will drop to 0 and the calibration is stored.
You are now finished.
Remember the accuracy of your 2 mile (2 kilometer) distance will directly affect the accuracy of your speedometer.
The following list contains factors that can affect speedometer accuracy and how to minimize them during calibration.
1. Tire diameter increases slightly as vehicle speed increases. To minimize this error drive at an average speed of 45 MPH (75 KPH) during calibration.
2. Tire diameter increases slightly as tire air pressure is increases. To minimize this error, check the vehicle’s tires to ensure correct air pressure.
3. Tire diameter changes with vehicle load. Minimize this error by having an average load in the vehicle during calibration.
4. Minimize tire slippage error by not breaking traction during calibration.
Note: Always recalibrate speedometer after any tire size or differential ratio change.
SERVICE
For service send your product to Auto Meter in a well packed shipping carton. Please include a note explaining what the problem is along with your phone number. If you are sending product
back for a warranty adjustment, you must include a copy (or original) of your sales receipt from the place of purchase.
12 MONTH LIMITED WARRANTY
Auto Meter Products, Inc. warrants to the consumer that all Auto Meter High Performance products will be free from defects in material and workmanship for a period of twelve (12) months from date of the
original purchase. Products that fail within this 12 month warranty period will be repaired or replaced at Auto Meter’s option to the consumer, when it is determined by Auto Meter Products, Inc. that the product
failed due to defects in material or workmanship. This warranty is limited to the repair or replacement of parts in the Auto Meter instruments. In no event shall this warranty exceed the original purchase price of
the Auto Meter instruments nor shall Auto Meter Products, Inc. be responsible for special, incidental or consequential damages or costs incurred due to the failure of this product. Warranty claims to Auto Meter
must be transportation prepaid and accompanied with dated proof of purchase. This warranty applies only to the original purchaser of product and is non-transferable. All implied warranties shall be limited in
duration to the said 12 month warranty period. Breaking the instrument seal, improper use or installation, accident, water damage, abuse, unauthorized repairs or alterations voids this warranty. Auto Meter
Products, Inc. disclaims any liability for consequential damages due to breach of any written or implied warranty on all products manufactured by Auto Meter.
FOR SERVICE SEND TO: AUTO METER PRODUCTS, INC. 413 W. Elm St., Sycamore, IL 60178 USA (866) 248-6357
Email us at service@autometer.com
© 2010 Auto Meter Products, Inc.
2650-1512-00 06/02/10
