HIGH IDLE Electronic Throttle Module Fast Idle Speed Control for 2003 - 2006 Chevy & 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: Silverado, Sierra, 4.8 L Vortec V8 Gas 5.3 L Vortec V8 Gas Kodiac C4500-C5500, 6.0 L Vortec V8 Gas TopKick C4500-C5500, 8.1 L Vortec V8 Gas Express, Savana, Avalanche, 6.6 L Diesel* 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 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 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. MODEL # 091-84-ETM64 Applications 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 System Diagram 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 VRPM Customer Provided Wiring OBD-II Data Link Connector RPM1 System DLC Cable Customer Interface Wiring RPM2 RPM3 CHRG +12 V Fast Idle Modes Preset RPM 1 Preset RPM 2 Preset RPM 3 Charge Protect Variable RPM Ground 0 Selectable A/C disable mode for engine speed stability during fast idle operation Hardwired parking brake switch interlock input LED status and troubleshooting indicators 091-84-ETM64 Electronic Throttle PKBRK Parking Brake Position Switch 0) Fully Released 1) Brake Applied 1 Ground Product Data Sheet PDS-44A 091-84-ETM64 Series Electronic Throttle Modules Specifications Modes of Operation A. Preset RPM Modes Function: Number of presets: Input identification: Activation: Range of calibration: Calibration method: B. Charge Protect Mode Function: Input identification: Activation: RPM range: C. Variable RPM Mode Function: Input identification: Adjustment: RPM range: Power Requirements Input Voltage: Input Current: Increases idle to a preset rpm Three RPM1, RPM2 & RPM3 Apply +12 V to input to select mode 680 to 2000 rpm Internal potentiometers (3) Varies rpm to maintain battery charge CHRG Apply +12 V to input to select mode 680 to 1700 rpm Varies rpm as a function of external resistance change VRPM 10k Ohm potentiometer between input terminal and ground 680 to 2000 rpm Safety Interlocks 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) A/C Inhibit Mode 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. Parking Brake Input 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. 8 to 16 volts dc (from Ignition Switch) 30 milliamps Mechanical Drawing 4.00 3.50 System Data Link Connector (DLC) Cable 0.1875 2.05 1.025 RPM3 RPM2 RPM1 +12V KUSSMAUL ELECTRONICS CO., INC. 170 CHERRY AVENUE WEST SAYVILLE, NY 11796-1221, TEL: 631-567-0314, FAX: 631-567-5826, TOLLFREE 800-346-0857, WORLD WIDE WEB: http//www.kussmaul.com E-MAIL: sales@kussmaul.com ACON BUS GEAR PK BRK SR BRK VSPEED RPM1 RPM2 RPM3 CHRG VRPM PK BRK BUSS GND 3 ft. OBDII Data Link Connector Connection to 091-84-ETM64 Module (Faston terminals) Preset speed calibration potentiometers (3 places) RPM1 VRPM RPM3 RPM2 CHRG 0.25 Inch Faston Terminals 0.50 All dimensions in inches. Not to scale. Manufactured by InPOWER LLC ...