OM-20G .cdr - InPower LLC
OWNERS MANUAL
Model ETM60
Electronic Throttle Module
for
Chevy/GMC Gas & Diesel Engines
with Automatic Transmissions
A. Introduction
DISC
R
P
D
UE
N
I
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ON
T
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The InPower Model ETM60 electronic throttle module is designed for installation in the following 2003/04 Chevy and
GMC truck, van and sport utility vehicles:
4.8 L Vortec Gas with Automatic Transmission
8.1 L Vortec Gas with Automatic Transmission
5.3 L Vortec Gas with Automatic Transmission
6.6 L Duramax Diesel with Automatic Transmission
6.0 L Vortec Gas with Automatic Transmission
Five modes of fast idle control are provided, including: three fast idle preset speeds (user adjustable), a variable
speed input (remote variable resistor), and Charge Protect, which will advance the engine speed from 680 rpm until it
senses sufficient voltage at the battery to maintain its charge (1700 rpm maximum).
The ETM60 electronic throttle installation requires customer supplied control wiring to select the required mode of
operation. This wiring connects to the ETM60 module via 0.25 inch Faston terminals. The ETM60 system is supplied
with a three foot data cable. This cable contains an 16-pin connector at one end and 0.25 inch Faston terminals at the
other end. The Faston terminals will connect at the ETM60 module and the 16-pin connector plug will attach to the
vehicle’s OBDII (On Board Diagnostic) data link connector (DLC). The DLC is usually located at the lower part of the
dash on the driver’s side.
B. Operation
When the vehicle is parked and Chassis Ready Conditions are satisfied the engine speed may be controlled by
one of the five available modes (three preset speeds, Charge Protect, or variable rpm). The preset speed may be
adjusted by three calibration potentiometers on the top of the ETM60 module.
Chassis Ready Conditions:
1. Parking brake is set
2. Gear shift in “Park” (automatic transmission only)
3. Foot is off service brake
4. Foot is off the accelerator pedal
5. Vehicle is stationary (no speed)
6. Engine is started and idling
Modes Of Operation
1. Three Preset RPM High Idle Modes:
Function:
Increase idle to a preset rpm value
Terminals:
RPM1, RPM2, RPM3
Activation:
Apply +12 V to terminal
Range of Calibration: 680 to 2000 rpm
Type of Adjustment:
Internal potentiometers
InPOWER LLC
3555 Africa Road
Galena, Ohio 43021 U.S.A
(866)548-0965
www.InPowerDirect.com
Page
1 of 4
Owners Manual
Document: OM-20
Date: March 2, 2004
Revision: G
Date: April 26, 2011
B. Operation (Cont’d)
2. Charge Protect Mode:
Function:
Control Terminal:
Activation:
RPM Range:
3. Variable RPM Mode:
Function:
Terminal:
Adjustment:
Enable:
Varies rpm to maintain battery charge voltage
CHRG
Apply +12V to CHRG terminal
680 to 1700 rpm
Varies rpm as a function of voltage on VRPM
VRPM
10K Ohm potentiometer between the VRPM terminal and ground
Turn potentiometer down to zero resistance, then slowly increase until desired
rpm is reached
Turn potentiometer down to zero and rpm will drop to standard idle speed
680 to 2000 rpm
Disengage:
RPM Range:
4. Mode Priorities:
A mode priority selection scheme is provided that will eliminate conflicts if more than one mode is
selected at a time. In the case of one or more modes being selected, the following priorities will
be established:
RPM1
Highest - Will override all other modes
RPM2
Second - Will override lower modes
RPM3
Third - Will override lower modes
Charge Protect
Forth - Will override lower modes
Variable RPM
Lowest - Will only activate when other modes
are off
NOTES:
1. The ETM60 system must be initialized anytime that the DLC cable is disconnected from the OBDII
connector. To initialize the system, first plug in the DLC cable, shut the Ignition Switch Off, then back On,
then start the engine.
2. On GM gas engine vehicles the PCM engine computer will cause the engine speed to momentarily drop
back to normal idle speed every time the air conditioner pump cycles either on or off. On ETM60 units
with Revision C (identified as “ETM-60C”) the A/C function will be disabled when in fast idle mode to
prevent this on/off cycling.
Status Indicators
A 10 segment LED provides status and problem detection information. Refer to the following table for coding of
these functions.
LED
BUSS
BUSS
GEAR
GEAR
PK BRK
PK BRK
SR BRK
SR BRK
VSPEED
VSPEED
RPM1
RPM1
RPM2
RPM2
RPM3
RPM3
CHRG
CHRG
VRMP
VRPM
Status
On Solid
Flashing
On Solid
Flashing
On Solid
Flashing
On Solid
Flashing
On Solid
Flashing
On Solid
Flashing
On Solid
Flashing
On Solid
Flashing
On Solid
Flashing
Off
On Solid
Indication
Module ON and functioning
Module ON, but a problem was detected
Transmission in PARK
Transmission not in PARK
Park Brake set
Park Brake not set
Service Brake set
Service Brake not set
Vehicle is stationary
Vehicle is moving
RPM1 mode selected, engine at fast idle
RPM1 mode selected, engine not at fast idle (Chassis ready cond. not satisfied*)
RPM2 mode selected, engine at fast idle
RPM2 mode selected, engine not at fast idle (Chassis ready cond. not satisfied*)
RPM3 mode selected, engine at fast idle
RPM3 mode selected, engine not at fast idle (Chassis ready cond. not satisfied*)
CHRH mode selected, engine at fast idle
CHRG mode selected, engine not at fast idle (Chassis ready cond. not satisfied*)
VRPM terminal at zero resistance value (engine at idle)
VRPM terminal increases above threshold level (0.6v) and engine speed
increases accordingly.
VRPM
Flashing
VRPM terminal increases above threshold level (0.6v) but engine does not
respond with elevated speed.
* See Chassis Ready Conditions on page 1 for required conditions.
InPOWER LLC
3555 Africa Road
Galena, Ohio 43021 U.S.A
(866)548-0965
www.InPowerDirect.com
Page
2 of 4
Owners Manual
Document: OM-20
Date: March 2, 2004
Revision: G
Date: April 26, 2011
C. Installation
1. Getting Started
The recommended location for the ETM60 system is under the dash due to the proximity of the wiring connections
and cable length. The unit should not be located in the engine compartment, or any location that is not
protected. You will need a crimping tool for the 0.25 inch Faston (blade) terminals, and a wire stripping tool. Be sure
to follow the crimping tool instructions for the proper wire size and terminals.
2. Mount the ETM60 Module
Mount the ETM60 module under the dash using the two mounting holes. Ensure that you have sufficient distance to
install the 36 inch long DLC cable.
3. Install the DLC Cable
Connect the three Faston terminals on the DLC cable to the ETM60 module terminals (Black wire to GND terminal,
Red wire to +12V terminal, and White wire to BUSS terminal). Route the cable to the OBDII (On Board Diagnostic)
Data Link Connector and plug it in. The OBDII connector will be 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 that you
route the cable of the plug back across the bottom of the connector and loop the cable tie around the plug, socket and
cable, thereby keeping the cable out of the way. Also ensure that the entire cable is routed and secured to keep it out
of the way.
4. Wire the Mode Selection Controls
The following wiring is required by the customer to select the operating modes required to run the ETM60 system. You
will need to supply contact closures such as a toggle switch or relay contact to supply +12 volts at the ETM60
terminals for the three preset rpm modes and the Charge Protect mode. It is important that the +12 volts used to
feed the mode select terminals is from the Ignition Switch power source. That is, it must be +12 volts when
the Ignition Switch is On, and zero volts when the Ignition Switch is Off.
A. Preset Speed Modes
If you are using any of the three preset speed modes (RPM1, RPM2 or RPM3) you will need to supply a separate
contact closure to each preset terminal. The contacts need to supply +12 volts (Ignition Switch power) to activate the
preset modes.
B. Charge Protect Mode
If you are using the Charge Protect mode you will need to supply a contact closure between the CHRG terminal on the
ETM60 and the +12 V Ignition Switch power.
C. Variable RPM Mode
If you are using the Variable RPM mode you will need to supply a 10,000 ohm variable resistor (potentiometer)
between the VRPM terminal on the ETM60 module and ground. We recommend a ten-turn potentiometer.
D. Setup and Calibration
The only calibration required is to select each of the three preset rpm modes (RPM1, RPM2 & RPM3) and adjust the
three respective calibration potentiometers on the top of the ETM60 module to the desired speed (680 through 2,000
RPM). Adjustments can be made with a 1/16” (1.6 mm) or smaller screw driver. Each potentiometer is a ten turn
module, with an increase or decrease of about 300 rpms per complete turn.
InPOWER LLC
3555 Africa Road
Galena, Ohio 43021 U.S.A
(866)548-0965
www.InPowerDirect.com
Page
3 of 4
Owners Manual
Document: OM-20
Date: March 2, 2004
Revision: G
Date: April 26, 2011
E. Wiring Diagram
Customer Wiring
Black
Fuse
Red
GND
+12 V
OBDII (On Board
Diagnostic) Data
Link Connector
3 Ft. Wire Harness
(Supplied with ETM60)
BUS
White
View looking into connector:
Ground
(Black)
BUS
(White)
1 2 3 4 5 6 7 8
ETM60
Electonic
Throttle
RPM1
RPM 1
RPM2
RPM 2
RPM3
RPM 3
CHRG
Charge
Protect
VRPM
+12 V
Ignition*
RPM Control
9 10 11 12 13 14 15 16
Ground
+12 V
(Red)
* This +12 volts must be fed from
the Ignition Switch and must be
properly fused.
F. Mechanical Drawing
4.00
3.50
RPM3 RPM2 RPM1
RPM1
RPM2
RPM3
CHRG
VRPM
0.25 Inch Faston Terminals
GND
+12V
BUSS
BUS
GEAR
PK BRK
SR BRK
VSPEED
RPM1
RPM2
RPM3
CHRG
VRPM
System Data Link Connector (DLC) Cable
3 ft.
0.1875
OBDII
Data Link
Connector
2.05
1.025
Connection to ETM60 Module (Faston terminals)
Preset speed calibration
potentiometers (3 places)
0.50
All dimensions in inches. Not to scale.
G. Specifications
Electrical
Input Voltage (+12V Terminal):
Input Current (+12V Terminal:
Mechanical
Weight:
Connections:
Case Material:
Encapsulation Material:
8 to 16 volts
30 mA
0.17 lbs
Faston 0.25 inch terminals
Cyolac thermoplastic (UL 94VO)
Epoxy potting compound, resistant to
most fuels, oils, acids, and cleaning
Agents.
H. Customer Support
Technical Support
For product support, contact InPower at 740-548-0965 or 866-548-0965. Product bulletins and owner’s manuals
are available on our web site: www.InPowerDirect.com.
Warranty
InPOWER LLC warrants its products to be free from defects in material and workmanship under normal use, care
and maintenance for a period of two (2) years from the date of shipment. Please see
www.inpowerdirect.com/warranty.htm for specifics or call 866-548-0965 for a copy of our warranty policy.
Customer Evaluation
InPower wants to ensure total customer satisfaction. Please download a product evaluation form at
www.InPowerDirect.com/Customer_evaluation.htm or call us toll free at 866-548-0965 to be sent a form by mail.
InPOWER LLC
3555 Africa Road
Galena, Ohio 43021 U.S.A
(866)548-0965
www.InPowerDirect.com
Page
4 of 4
Owners Manual
Document: OM-20
Date: March 2, 2004
Revision: G
Date: April 26, 2011
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