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Product Data Sheet

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.

Applications

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

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

Preset RPM 1

Preset RPM 2

Preset RPM 3

Charge Protect

Variable RPM
Control

Ground

091-84-ETM62

Electronic Throttle

System Diagram

Customer Wiring

Customer

Interface

Wiring

Vehicle On Board
Diagnostic (OBDII)
Data Link Connector

System 

DLC

Cable

RPM1

RPM2

RPM3

CHRG

VRPM

+12 V Ignition

PKBRK

Parking Brake
Position Switch

0

1

0) Fully Released
1) Brake Applied

HIGH IDLE

MODEL # 091-84-ETM62

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