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GM Throttle Features
  • User-adjustable speed presets
  • Engine control module programming for speed presets not required
  • No Chevy/GMC options required
  • Direct interface to engine data bus
  • LED status and troubleshooting indicators
GM Throttle Applications
  • Emergency vehicles
  • Work trucks
  • Transit and shuttle buses
  • Pumper trucks
  • Service and rescue vehicles
  • Hydraulic systems
  • Air compressors
  • Power inverter systems
  • Warning light systems
GM Throttle Models
Below is the current listing of supported GM truck and Van chasses, with the recommended throttle product.

For all GM compatible throttles, please consult our Application Guide to ensure a throttle will work with your vehicle. There are multiple vehicle and engine types, with many different software configurations. See our Application Guide for assistance.
Throttle Model Years Engines Transmission Engine
ETM-64 2002-2007* Gas/Diesel Automatic Various
ETM-67A 2007i-2009* Gas/Diesel Automatic Various
ETM-68A 2007i-2009* Gas/Diesel Automatic Various
ETM-61 2003-2007* Gas/Diesel Manual Various
ETM-64
The ETM-64 Electronic Throttle Controller works with certain Chevy & GMC trucks, vans, buses and sport utility vehicles equipped with automatic transmissions. Five available 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. 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). The ETM-64 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.
ETM-67A
The ETM-67A Electronic Throttle Controller provides four modes of engine rpm control for certain Chevy & GMC trucks, vans, buses and sport utility vehicles equipped with gas or diesel engines and automatic transmissions. These modes include three preset fixed speeds and Charge Protect, which will automatically increase engine speed to maintain the battery charge. The three fixed speed preset modes are selected by applying +12 volts to the RPM1, RPM2 or RPM3 mode input terminals. The three fast idle presets can be individually adjusted by calibration potentiometers accessible on the top of the module. Ten LED indicators are provided to display the selected operating mode, system status, and error conditions. The fast idle function includes interlock safeguards that must be satisfied before the engine speed can be increased. These enablers include: transmission in Park, parking brake set, engine running, vehicle stationary (no speed), foot off service brake, and foot off accelerator. The ETM-67A 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.
ETM-68A
The ETM-68A Electronic Throttle Controller provides three modes of engine rpm control for certain Chevy & GMC trucks, vans, and buses equipped with gas or diesel engines and automatic transmissions. The three fixed speed preset modes are selected by applying +12 volts to the RPM1, RPM2 or RPM3 mode input terminals. The three fast idle presets can be individually adjusted by calibration potentiometers accessible on the top of the module. Ten LED indicators are provided to display the selected operating mode, system status, and error conditions. The fast idle function includes interlock safeguards that must be satisfied before the engine speed can be increased. These enablers include: transmission in Park, parking brake set, engine running, vehicle stationary (no speed), foot off service brake, and foot off accelerator. The ETM-68A 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.
ETM-61
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 ETM-61 controller module is compact, measuring only 2 x 4 inches. Wiring terminations utilize 0.25 inch Faston (blade) terminals. Installation is simplified with a wiring harness that plugs into the vehicle's engine data bus, eliminating the need to wire into chassis sensors or the accelerator pedal module. The ETM-60/61 module mounts under the dash and is supplied with a three foot cable that plugs into the vehicle's OBDII Data Link Connector.
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