Kussmaul 091-84-ETM62 User Manual

HIGH IDLE

MODEL # 091-84-ETM62

Applications

Chevy/GMC Vortec Gas and Duramax
Diesel Truck Engines

Pumper Trucks

Aerial Trucks

Power Take-Off (PTO) Systems

Emergency Vehicles

Service and Rescue Trucks

Hydraulic Systems

Air Compressors

Power Inverter Systems

Key Features

Five modes of operation

Engine Control Module programming for
speed presets not required

No requirement for Chevy/GMC options

Direct interface to engine controller data bus

Encapsulated electronics for maximum
environmental protection

Requires wiring to the chassis parking brake
switch

LED status and troubleshooting indicators

Electronic Throttle Module

Chevy/GMC Fast Idle Speed Control for Chassis
Requiring Hardwired Parking Brake Switch

The ETM62 Electronic Throttle Controller provides five
modes of engine rpm control for Chevy & GMC trucks, vans,
and buses equipped with automatic transmissions and the
following engines:

4.8 L Vortec V8 Gas

5.3 L Vortec V8 Gas

6.0 L Vortec V8 Gas

8.1 L Vortec V8 Gas

6.6 L Duramax Diesel

This controller supports GM chassis that do not provide a
parking brake position sensor message on the engine data
bus. As the system requires the parking brake to be set
before the engine speed is increased, the ETM62 controller
must be wired to the chassis parking brake switch.

Five selectable modes of fast engine idle operation include
three preset fixed speeds, a variable speed control via a
external potentiometer, and Charge Protect, 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. The ETM62 controller module is compact,
measuring only 2 x 4 inches. Wiring terminations utilize 0.25
inch Faston (blade) terminals.

The ETM62 controller mounts under the dash and is supplied
with a three foot cable that plugs into the vehicle’s OBDII
Data Link Connector. A terminal is provided to wire into the
chassis parking brake position switch.

System Diagram

Vehicle On Board
Diagnostic (OBDII)
Data Link Connector

Customer Wiring

RPM1

RPM2

RPM3

CHRG

VRPM

PKBRK

1

0) Fully Released

1) Brake Applied

+12 V Ignition

Preset RPM 1

Preset RPM 2

Preset RPM 3

Charge Protect

Variable RPM
Control

0

Parking Brake
Position Switch

Ground

091-84-ETM62

Electronic Throttle

Customer

Interface

Wiring

System

DLC

Cable

Product Data Sheet

ETM62 Series Electronic Throttle Modules

Specifications

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
Safety Interlocks The following conditions must be met

before the ETM62 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)

* Sensed by the ETM62 controller via the engine data bus.

Mechanical Drawing

4.00

3.50

PK BRK

BUS
GEAR
PK BRK
SR BRK
VSPEED
RPM1
RPM2
RPM3
CHRG
VRPM

VRPM

RPM3

CHRG

+12V

BUSS

RPM2

GND

RPM3

RPM2

RPM1

RPM1

0.1875

2.05

1.025

Chevy & GMC Engines and Chassis Supported*

(Model Years 2003, 2004 & 2005)

Engine Chassis

4.8 L Vortec Gas Silverado/Sierra 1500
Tahoe, Yukon
Express/Savana

5.3 L Vortec Gas Silverado/Sierra 1500
Express/Savana
Avalanche, Suburban,
Tahoe, Trailblazer EXT,
Envoy XL/UXL,
Yukon/XL Danali/XL

6.0 L Vortec Gas Silverado/Sierra 2500
Silverado/Sierra 3500
Express/Savana
Suburban, Yukon XL,
Yukon XL Danali

8.1 L Vortec Gas Silverado/Sierra 2500

Silverado/Sierra 3500

Avalanche, Suburban,
Yukon XL
Kodiac/Topkick C4500
Kodiac/Topkick C5500
Kodiac/Topkick C6500

Kodiac/Topkick C7500
Kodiac/Topkick C8500

6.6 L Duramax DieselSilverado/Sierra 2500
Silverado/Sierra 3500
Kodiac/Topkick C4500

* InPower is in the process of certifying that the above vehicles will
properly operate the ETM60 Series electronic throttles. Contact InPower
for the current list of certified vehicles.

System Data Link Connector (DLC) Cable

3 ft.

Connection to ETM62 Module (Faston terminals)

Kodiac/Topkick C5500

OBDII
Data Link
Connector

Preset speed calibration
potentiometers (3 places)

0.25 Inch Faston Terminals

0.50

All dimensions in inches. Not to scale.

Manufactured by InPOWER LLC

KUSSMAUL

ELECTRONICS CO., INC.

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: [e-mail]