KUSSMAUL 091-84-ETM64 Operational manual

Product Data Sheet
Electronic Throttle Module
Fast Idle Speed Control for 2003 - 2006 Chevy &
Applications
Key Features
Five modes of fast idle operation
Engine Control Module programming for
speed presets not required
No Chevy/GMC options required
Direct interface to engine controller data bus
Hardwired parking brake switch interlock input
LED status and troubleshooting indicators
Chevy/GMC Vortec Gas
Pumper Trucks
Aerial Trucks
Power Take-Off (PTO) Systems
Emergency Vehicles
Service and Rescue Trucks
Hydraulic Systems
Air Compressors
Power Inverter Systems
HIGH IDLE
MODEL # 091-84-ETM64
GMC Vehicles with Gas and Diesel Engines
The 091-84-ETM64 Electronic Throttle Controller provides
five modes of engine rpm control for Chevy & GMC trucks, vans,
and buses equipped with automatic transmissions for the following:
Engines: Chassis:
4.8 L V8 Gas
5.3 L V8 Gas
6.0 L V8 Gas
8.1 L V8 Gas
6.6 L Diesel*
Vortec
Vortec
Vortec
Vortec
Silverado, Sierra,
Kodiac C4500-C5500,
TopKick C4500-C5500,
Express, Savana, Avalanche,
Suburban, Tahoe, Trailblazer,
Envoy, Yukon
*6.6 L Duramax Diesel will only
work with 2003-2005 model years.
The 091-84-ETM64 system can be set up to use either the engine
data bus message for the parking brake interlock or a hardwired
input from the parking brake switch.
Five available modes of fast engine idle operation include three
preset fixed speeds, a variable speed control via an external
potentiometer, and which will automatically
increase engine speed to maintain the battery charge. Ten
LED indicators are provided to display the selected operating
mode, system status, and error conditions. A set-up jumper
option is provided that can allow the air conditioner system to
either be enabled or disabled during fast idle operation
(disabling the A/C allows for a more stable engine speed).
Charge Protect,
The 091-84-ETM64 controller module is compact, measuring only
2 x 4 inches. Wiring terminations utilize 0.25 inch Faston (blade)
terminals. The controller mounts under the dash and is
supplied with a three foot cable that plugs into the vehicle’s
OBD-II Data Link Connector. A terminal is provided to wire into
the chassis parking brake position switch.
Preset RPM 1
Preset RPM 2
Preset RPM 3
Charge Protect
Variable RPM
Ground
System Diagram
Customer Provided Wiring
RPM1
RPM2
RPM3
CHRG
VRPM
+12 V
PKBRK
Parking Brake
Position Switch
0
1
0) Fully Released
1) Brake Applied
Fast Idle Modes
OBD-II Data
Link Connector
System
DLC
Cable
Customer
Interface
Wiring
091-84-ETM64
Electronic Throttle
Ground
PDS-44A
Selectable A/C disable mode for engine
speed stability during fast idle operation

091-84-ETM64 Series Electronic Throttle Modules
Specifications
1.025
0.1875
2.05
3.50
4.00
0.50
All dimensions in inches. Not to scale.
Mechanical Drawing
Modes of Operation
A. Preset RPM Modes
Function: Increases idle to a preset rpm
Number of presets: Three
Input identification: RPM1, RPM2 & RPM3
Activation: Apply +12 V to input to select mode
Range of calibration: 680 to 2000 rpm
Calibration method: Internal potentiometers (3)
B. Charge Protect Mode
Function: Varies rpm to maintain battery charge
Input identification: CHRG
Activation: Apply +12 V to input to select mode
RPM range: 680 to 1700 rpm
C. Variable RPM Mode
Function: Varies rpm as a function of external
resistance change
Input identification: VRPM
Adjustment: 10k Ohm potentiometer between
input terminal and ground
RPM range: 680 to 2000 rpm
Power Requirements
Input Voltage: 8 to 16 volts dc (from Ignition Switch)
Input Current: 30 milliamps
System Data Link Connector (DLC) Cable
3ft.
Connection to 091-84-ETM64 Module
OBDII
Data Link
Connector
Preset speed calibration
potentiometers (3 places)
GND
+12V
BUSS
VRPM
CHRG
RPM3
RPM2
RPM1
RPM1
RPM2
RPM3
0.25 Inch Faston Terminals
BUS
GEAR
PK BRK
SR BRK
VSPEED
RPM1
RPM2
RPM3
CHRG
VRPM
ACON
170 CHERRY AVENUE WEST SAYVILLE, NY 11796-1221, TEL: [phone], FAX: [phone],
TOLLFREE 800-346-0857, WORLD WIDE WEB: http//www.kussmaul.com E-MAIL: [email protected]
ELECTRONICS CO., INC.
KUSSMAUL
Manufactured by InPOWER LLC
PK BRK
Safety Interlocks
A/C Inhibit Mode
Parking Brake Input
The following conditions must be met before the
091-84-ETM64 controller will initiate a fast idle mode:
1. Engine Running at idle speed
2. No vehicle speed
3. Automatic transmission in PARK
4. Service brake not depressed
5. Accelerator pedal not depressed
6. Parking brake set (hardwired input from switch, or
default to engine data bus message)
Due to an inherent speed instability in the GM engine
controller during fast idle operation the 091-84-ET64
controller disables air conditioner operation during fast idle
operation. A terminal (”ACON”) is provided that when
wired to +12 volts will override the A/C disable and allow
the A/C to operate during the fast idle mode. In this mode
the engine speed will momentarily drop every time the
A/C compressor cycles on or off.
A terminal (”PK BRK”) is provided that allows a hardwired
connection to the parking brake switch. This can be used
if the vehicle configuration does not provide a data bus
message for the parking brake sensor status (e.g.,
Chassis with a non-GM instrument cluster). With no
connection to the PK BRK terminal the system will default
to use the data bus message for the fast idle interlock.
Or, the terminal can be wired to the parking brake switch,
which applies a ground to indicate that the parking brake
is applied.
(Faston terminals)