© Copyright 2015 InPower LLC
ETM51 Owner’s Manual
4
Document: OM-54 Version Code: J
Date: Oct 15, 2009 Date: Dec 30 2015
2. Mounting
Mount the ETM51 Module under the dash or on a flat surface using the two mounting
holes. Ensure that you have sufficient distance to install the 36 inch DLC cable.
3. Installing the DLC Cable
Connect the two Faston terminals on the DLC cable to the ETM51 module terminals
(Yellow wire to CANH terminal and Green wire to CANL terminal). Route the cable to
the OBDII Data Link Connector and plug it in. The OBDII connector is usually located
on the lower part of the dash on the driver’s side. Using a cable tie, secure the plug
to the OBDII connector so that it will not vibrate out. We recommend routing the DLC
cable across the bottom of the plug/connector and looping the cable tie around the
plug, socket and cable to keep it out of the way.
4. Wiring the Mode Selection and SEIC Controls
The ETM51 module must be wried to the Ford SEIC blunt-cut wires and to the
customer-supplied Mode Selection controls. The wiring is different for diesel and gas
applications, so please refer to the appropriate wiring diagrams on pages 6 and 7. You
will also need a good quality chassis ground (battery negative) signal and a +12 volt
supply fed from the Ignition Switch.
Note that on gas engine installations, Ford requires the +12 volt supply to
be “clean” - i.e. it should have no other loads on the same circuit that could
generate electrical noise.
4A. Idle Speed Mode Controls
Determine the combination of fast idle speed modes you will need (variable RPM
control and/or up to three fixed preset speeds). You will need a 10k Ohm potentiometer
for the variable RPM control (VRPM) and a switch or relay contact for the fixed speed
presets (RPM1, RPM2 and RPM3). You will also need a Fast Idle On/Off switch.
Wire these devices as shown in the Wiring Diagram for your respective engine: Diesel
(page 6) or Gas (page 7). Make sure to have a good quality chassis ground and a +12
volt fused supply fed from the Ignition Switch. Refer to the Ford Body Builders book
for location of these circuits.
Note on Variable RPM control: We recommend a ten-turn potentiometer such as those
available from Williams Controls (www.wmco.com) or Digikey (www.digikey.com).
4B. Ford SEIC Wiring
Install the wires between the ETM51 module and the Ford SEIC as shown in the
wiring diagrams. On F-Series trucks, the SEIC wires are located above the parking
break pedal. On E-Series vans, they are located in the engine compartment on the top
driver’s side of the firewall. On F650 chassis, they are located under the hood on the
passenger side. Refer to the Ford SEIC documentation for more details.
© Copyright 2015 InPower LLC
ETM51 Owner’s Manual
5
Document: OM-54 Version Code: J
Date: Oct 15, 2009 Date: Dec 31, 2015
Setup and Calibration
The only calibration required is to select each of the three preset modes (RPM1,
RPM2 and RPM3) and adjust the three respective ten turn potentiometers on
the ETM51 to the desired RPM. (900 to 2250 RPM on gas engines and 1200 to
2300 RPM on the 2005-10 diesel engines; 900 to 3000 RPM on the 2011+ diesel
engines). Each complete turn of the potentiometer will increase or decrease the
idle speed by roughly 300 RPMs. Adjustments may be made with a 1/16(1.6mm)
or smaller screwdriver.
Specifications
Electrical
Input Voltage (+12V Terminal): 8 to 16 V
Input Current (+12V Terminal): 37mA
Mechanical
Weight: 0.17lbs
Connections: Faston 0.25 inch terminals
Case Material: Cyolac thermoplastic (UL 94VO)
Encapsulation Material: Epoxy potting compound, resistant to
most fuels, oils, acids and cleaning
agents.
Reference:
See www.fleet.ford.com/truckBBAS/index.htm
PTO
RPM
RPM3
RPM2
RPM1
VRPM
RPM3
BUS
SR BRK
PK BRK
GEAR
APDL
RPM2
RPM1
VRPM
VSPD
REF
+12V
GND
CANH
CANL
RPM3
RPM1 RPM2
4.00
0.1875 dia.
3.50
2.05
1.025
0.25 in. Faston Terminals
0.50
All dimensions in inches. Not to Scale.
Mechanical Drawing
