Audiovox PRO-9175FT4 4-Channel Remote Start / Keyless Entry System

Intended Use

This unit is intended for installation in vehicles with 12 Volt negative ground electrical systems, Gasoline or Diesel with true tach reference and automatic transmissions only.

Kit Contents

• PRO-9175 Control Module
• (2) - 4 Button Anti Code Grabbing Transmitters
• 4 Channel Code Learning Receiver
• External Superheterodyne Antenna/Receiver
• (1) - Multi Pin Input/Output Harness
• (1) - Six Pin Power Harness
• (1) - Four Pin Auxiliary Harness
• (1) - Two Pin I/O Harness
• (1) - Accessory 2 Pin Connector
• (1) - 2 Pin Door Lock Harness
• (2) - 30 Amp In-line Fuse Holders With Fuses
• (1) - Control Switch
• (1) - Programming Switch
• (1) - Ring Terminal
• (4) - 1/2" Long Screws
• (1) - Pin Switch
• (1) - Remote Start Warning Label
• (1) - Literature Package

System Overview and Vehicle Compatibility

The PRO-9175FT4 Remote Start/Keyless Entry System is designed exclusively for Automatic Transmission Vehicles. It offers selectable ignition control with timed outputs for diesel glow plug pre-heat (selectable feature #11). For diesel engines with instant fire (no glow plug pre-heat), feature #11 should remain in the default Gasoline mode. Consult your vehicle dealer for specific diesel ignition system details. For all installations, the vehicle must have a Tach Signal Input and an Automatic Transmission.

Installation of Major Components

Control Module

Select a mounting location inside the passenger compartment, typically behind the dashboard. Ensure the location is within 24 inches of the ignition switch wiring harness for the 6-pin main wiring harness. Avoid mounting near the steering shaft/column to prevent interference with vehicle control. Secure the module using cable ties or screws. Do not mount the module in the engine compartment as it is not waterproof.

Hood Pin Switch

This switch is required for safety shut down of the remote start unit, preventing activation if the hood is open, even when an RF command is issued. Mount the switch in an area under the hood away from water drain paths. Use provided brackets if necessary. The switch must be depressed at least 1/4 inch when the hood is closed. Drill a 1/4 inch hole, ensuring no existing wiring or fluid lines are behind the location. Secure the switch using a nut driver or socket. If using a bracket, mount the bracket first, then the switch.

Receiver/Antenna Assembly

Route the Superheterodyne Receiver Antenna Assembly from below the dashboard for optimal range. Choose a location above the vehicle's belt line for best reception. Metallic shielded windshield glass can inhibit RF reception; in such cases, route the antenna towards the rear window. Secure the antenna with the provided double-stick tape and consider securing the cable to a fixed support to prevent sagging.

Program Push Button Switch

Select a location accessible from the ignition switch for programming selectable features. Mounting on the lower dash panel in the driver's area is suggested. Ensure adequate clearance behind the chosen location and avoid drilling into existing wiring or fluid lines. Drill a 9/32" hole and mount the switch from the underside, securing it with a nut and star washer. Route wires towards the control module. For simultaneous use with the ignition switch, mounting the push-button switch to the left of the ignition switch is recommended.

Control Toggle Switch

Select a known and accessible mounting location, such as a lower dash panel, kick panel, or glove box. Inspect behind the location for adequate clearance and to ensure no existing wiring or fluid lines will be penetrated by drilling. Drill a 1/4" hole and mount the switch from the underside, securing it with a nut, star washer, and face plate. Orient the switch so the 'on' position is towards the driver.

Important Installation Notes

IMPORTANT: Do not plug in the 6-pin main power harness or the multi-pin input/output harness into the control module until all vehicle connections are made. Always disconnect the negative battery cable before making any connections.

The PRO-9175FT4 is strictly for vehicles with AUTOMATIC TRANSMISSIONS. Installation in manual transmission vehicles is prohibited and may result in serious injury or property damage.

Wiring the 6 Pin Main Power Harness

• RED w/ WHITE Trace Wire: +12 Volt Battery 1 Source. Connect to a constant +12 VDC source via the provided 30 Amp fuse and holder. Powers the control circuit and ignition 1 & 2 relays.
• RED Wire: +12 Volt Battery 2 Source. Connect to a different constant +12 VDC source via a 30 Amp fuse and holder. Powers the start and accessory relays. If the vehicle lacks a second battery feed wire at the ignition switch, both wires can be connected to the vehicle's battery.

IMPORTANT: The installing technician is responsible for determining the load factor of vehicle circuits and adequately fusing power wires. For loads exceeding 24 Amps continuous, use two fuses per power wire.

• YELLOW Wire: Starter Output. Connect to the low current start solenoid wire of the ignition switch harness. This wire provides +12 volts only when the ignition switch is in the 'start' (crank) position. This connection is critical to prevent the vehicle from starting in gear. It must be connected to the vehicle side of the starter cut relay (if present) or between the starter inhibit relay and the neutral safety switch for electrical neutral switch configurations.
• BLUE Wire: Ignition 1 Output. Connect to the ignition 1 wire from the ignition switch. Provides +12 volts when the key is in 'ON'/'RUN' or 'START'/'CRANK' positions. For diesel vehicles, connect to the ignition circuit powering glow plugs if pre-heating is required.
• GREEN Wire: Ignition 2 Output. Connect to the ignition 2 wire from the ignition switch. Provides +12 volts when the key is in 'ON'/'RUN' and sometimes 'START'/'CRANK'. Shows 0 volts when the key is in 'OFF' or 'ACCESSORY'. (Refer to programming for 'START' mode output).
• VIOLET Wire: Accessory Output. Connect to the accessory wire from the ignition switch. Provides +12 volts when the key is in 'ACCESSORY', 'ON', or 'RUN' positions. Shows 0 volts when the key is in 'OFF' or 'START'/'CRANK'.

Wiring Diagram Description (Page 4): A diagram illustrates the 6-pin main power harness connections to the ignition switch key positions (OFF, ACCESSORY, ON/RUN, START), showing which wires (Purple, Blue, Red, Green, Yellow, Red/White) receive +12V in each position. It also shows the connection for the starter output wire to the starter motor via a neutral safety switch and optional start inhibit relay.

Wiring Connections: 12 Pin Input / Output Harness

• Black Wire: Chassis Ground Source. Connect to a clean, unpainted metal part of the chassis using a self-tapping screw and ring terminal.
• BLACK w/WHITE Tracer Wire: Control Switch. Connect to one wire of the control switch; the other wire connects to chassis ground. This wire enables/disables the remote starter. When connected to ground, the module is operative; when open circuit, it is disabled. Mount the switch for an upward or driver-facing 'ON' position.
• GREY Wire: Negative Inhibit Input 1. Connect to the hood pin switch. Route through the firewall using a grommet. This is a safety feature; failure to use it can result in injury.
• GREY w/ BLACK Tracer Wire: Negative Inhibit Input 2. Grounding this wire stops the remote starter. Connect to the output of the vehicle's brake light switch if it switches ground. If it switches +12V, use the Brown w/ Black tracer wire instead.
• BROWN Wire: Positive Inhibit Input 1. Applying +12V to this wire stops the remote starter. If the vehicle has a factory hood pin switch providing +12V, connect this wire to it.
• BROWN w/ BLACK Tracer Wire: Positive Inhibit Input 2. Applying +12V to this wire stops the remote starter. Connect to the output of the vehicle's brake light switch if it switches +12V. If it switches ground, use the Grey w/ Black tracer wire instead.

Wiring Connections: 4 Pin Auxiliary Output Harness

• YELLOW w/ BLACK Tracer Wire: +12 Volt Alarm By-Pass Output. Provides +12V output when the ignition key is 'ON'. Connect to the alarm system's ignition input. This allows remote starting with the alarm armed and door lock/unlock control while running. NOTE: Disconnect the alarm's ignition input from any other wire it is connected to.
• (2) WHITE Wires: Parking Light Flasher. These are the common and normally open contacts of the parking lamp relay. For +12V switched systems, connect one White wire to a fused +12V battery source and the second White wire to the vehicle's parking light wire. For chassis ground switched systems, connect one White wire to chassis ground and the second White wire to the vehicle's parking light wire.
• LIGHT BLUE Wire: Ignition 3 / Shock Disable Output. Provides a 300mA ground output 3 seconds before remote start initialization and for 4 seconds after shutdown. A relay is typically required. This wire can be used for:
  • Shock Sensor By-Pass: Connect to terminal #86 of an external relay, with #85 to fused +12V. Cut the shock sensor trigger wire and connect one end to terminal #30 and the other to #87a.
  • Ignition 3 Output: For vehicles requiring a third ignition wire, connect to terminal #86 of an external relay, with #30 & #85 to a fused +12V (min 25A) source, and #87 to the vehicle's third ignition wire.
  • GM VATS Key Override: To bypass GM VATS, connect Light Blue wire to terminal #86 of an external relay, #85 to fused +12V. Cut the VATS wire (#1), connect ignition switch side to #87a and the other side to #30. Connect a selected resistor from #87 to the second VATS wire (#2).

Diagram Description (Page 6): A diagram illustrates the brake switch positive shutdown detail, showing how the brake light switch connects +12V to the Brown/Black wire when the brake is depressed. Another diagram shows the parking light flasher connections for both +12V switched and ground switched systems.

Diagram Description (Page 7): A diagram details the GM VATS By-Pass circuit, showing the connections to a relay, diode, resistor, and the vehicle's ECM/VATS control module.

Wiring Connections: 3 Pin Door Lock/Unlock Harness

This harness provides pulsed ground or +12 volt outputs for door lock/unlock circuits, with a maximum switching capability of 300mA. Confirm factory relay ratings do not exceed this limit. Connect the 3-pin connector to the control module.

3 Wire Ground Switched Door Lock Circuits

• RED Wire: Pulsed ground lock output. Connect to the low current ground signal wire for the factory door lock switch/relay.
• GREEN Wire: Pulsed ground unlock output. Connect to the low current ground signal wire for the factory door unlock switch/relay.

Diagram Description (Page 8): Shows the Tachometer Input wiring detail, connecting the Dark Green/Orange wire to the negative side of the ignition coil. It also illustrates the 3 Wire Ground Switched Door Lock/Unlock Wiring Detail.

3 Wire Ground Switched 2 Step Door Locks

The RED wire provides a ground pulse for locking. The GREEN wire provides a ground pulse for unlocking the driver's door, potentially requiring an optional relay. The RED/BLACK wire provides a second pulse ground output for unlocking. Wiring details involve connecting to factory relays or optional relays, considering whether vehicle motors are ground or +12V switched.

Diagram Description (Page 9): Illustrates the 3 Wire Ground Switched 2 Step Door Locks wiring, including connections for optional relays for driver's door lock/unlock and the Red/Black wire.

3 Wire Positive Switched 2 Step Door Locks

The GREEN wire provides a +12 volt pulse for locking. The RED wire provides a +12 volt pulse for unlocking the driver's door, potentially requiring an optional relay. The RED/BLACK wire provides a pulse ground output that may require a relay to invert polarity for factory door lock control.

Diagram Description (Page 10): Shows the 3 Wire Positive Switched 2 Step Door Locks wiring, including connections for optional relays and polarity inversion.

3 Wire Positive Switched Door Locks

The RED wire provides a +12 volt pulse for unlocking, connecting to the factory door unlock switch/relay. The GREEN wire provides a +12 volt pulse for locking, connecting to the factory door lock switch/relay.

Note: For complex door lock circuits (resistive, polarity reversal, 5-wire alternating), consult the AS 9159 Door Lock Interface or Audiovox service information.

Wiring the 4 Pin Auxiliary Output Harness

This harness provides low current outputs for various functions:

• Black w/ Blue Trace Wire: Pulsed Ground Output Before Start. Provides a 1-second, 300mA pulsed ground output 1.5 seconds before remote start activation or when unlocking. Useful for disarming factory theft deterrent systems.
• Black w/ Light Green Trace Wire: Pulsed Ground Output After Start. Provides a 1-second, 300mA pulsed ground output after the vehicle starts. Used to re-lock doors if they unlock automatically when the anti-theft system disarms.
• Black w/ Red Trace Wire: Pulsed Ground Output After Shutdown. Provides a 1-second, 300mA pulsed ground output after the remote start unit shuts down. Used to re-lock doors if they unlock upon ignition transition to off.
• Black w/ Yellow Trace Wire: Ground Output During Start (Crank). Provides a 300mA ground output while the starter is active. Can be used for Crank Low/Bulb Test wires or ECM wake-up wires in some vehicles. Note: Outputs are low current; use a relay if the circuit requires more than 300mA.

Blue and Green w/Black Trace Wires - 2 Pin Accessory Output Harness

• Dark Blue Wire: Delayed 300 mA Pulsed Output/Channel 3. A transistorized, low current output activated by the transmitter's trunk/key button. Use to drive an external relay coil. Press and hold for trunk release, or press/release twice within 2 seconds for remote start. WARNING: Connecting to high current outputs will damage the control module. Connect to terminal #86 of an AS-9256 relay (or equivalent), with #85 to fused +12V.
• Green w/ Black Trace Wire: 300mA Latched Channel 4 Output. Provides a 300mA switched output when channel four is accessed via the transmitter button (active up to 8 seconds). Must be connected to a relay. Connect to terminal #86 of a VF45F11 P&B relay (or equivalent), with #85 to fused +12V. WARNING: Connecting to outputs exceeding 300mA will damage the control module.

Diagram Description (Page 12): Shows the Channel 3 Relay Wiring Detail for the Dark Blue wire.

Dark Blue/Black and Green/White - 2 Pin Input/Output Harness

• Dark Blue/Black Trace Wire: External Trigger Input. Allows activation from an external source like a paging system. A ground pulse will start the vehicle. Connect to a ground pulsed output from the controlling circuit.
• Green w/ White trace Wire: Entry Illumination Ground Output. Provides a 30-second, 300mA ground output when the remote unlocks doors. Connect to an external relay for interior entry lighting.

Diagram Description (Page 13): Shows the Entry Illumination Detail for the Green/White wire.

RF Programmable Features

The following features can be programmed using the transmitter and programming switch:

Diesel Operation Note: When selecting Diesel modes (10, 15, or 20), ignition circuits power up 10, 15, or 20 seconds before the start circuit to allow for glow plug warming. This feature is not necessary for instant-start diesel engines. Ensure a true tach reference is connected when using Diesel modes.

To Program Selectable Features:

1. Turn the ignition key to the ON position.
2. Press and release the pushbutton switch 3 times.
3. Immediately turn the ignition key OFF, then back to ON.
4. Press and release the pushbutton switch 2 times.
5. Use channel one button on the transmitter to advance to the desired feature.
6. Use channel 3 button on the transmitter to change the selection. (Parking lights will flash once or twice to indicate the current setting).

Note: Allow no more than 15 seconds between steps during programming, or programming will terminate.

Programming Tach Rate

Tach programming is required for unit operation. If tach is not programmed, the unit will flash parking lights 7 times. Proper tach programming ensures the unit recognizes when the vehicle is running. The unit learns tach rate from single ignition coils, multiple coil packs, or single injectors.

To Learn Tach:

1. Turn the ignition key to the ON position.
2. Press and release the program switch 3 times.
3. Immediately turn the ignition key OFF.
4. Press and hold the program switch while starting the vehicle with the ignition key.
5. When the tach signal is sensed, parking lights will flash.
6. Release the program switch; parking lights will stay on for 3 seconds to confirm tach signal storage.

Diagnostics

Set programmable feature #7 to "Diagnostics On" mode. Hold the program switch and turn the ignition key to ON. Flashes indicate the reason for the last remote start shutdown:

• 1 Flash: Run Timer Expired
• 2 Flashes: Low, or No Tach Signal
• 3 Flashes: Positive Or Negative Shutdown
• 4 Flashes: Control Switch Moved To Off
• 5 Flashes: RF Shut Down, Remote Signal Received, or Manual Start Input Wire Reactivated
• 6 Flashes: High RPM Signal Received
• 7 Flashes: Tach Has Not Been Programmed

Timed Start Program

This feature allows automatic vehicle starts at timed intervals (every 2 or 4 hours, up to 48 hours) for warming the engine and battery. Factory preset is 4-hour intervals.

To Select 2 or 4 Hour Timer:

1. Start with the Enable switch (Red Handle) in the "On" Position.
2. Turn the ignition on then off.
3. Within 10 seconds of turning the key off, cycle the enable switch: Off, On, Off, On (2 times) for a 2-hour interval, or Off, On, Off, On, Off, On, Off, On (4 times) for a 4-hour interval. Lights will flash 2X or 4X accordingly.

Note: The selected interval remains in memory until manually changed.

Timed Start Operation:

To begin the timer, within 10 seconds of turning off the ignition, activate the RF command to start 2 times (press trunk/key button 4 times). Lights will flash 4 times. The vehicle will start automatically every 2 or 4 hours. To cancel, start the vehicle via RF or ignition key.

Multi Coil Pack Adaptor (Optional)

Used for vehicles with single point ignition coil or single injector where tach signal is unavailable. Connect Green/Black wires to the negative side of ignition coil(s). For independent coils per cylinder, connect to alternate coils, mapping firing order. For 2-cylinder firing per coil pack, connect to tach side of each coil pack. Connect Yellow wire to a +12 volt ignition 1 source. Connect Green wire to the (Green) or (Orange/Green) tach input.

Diagram Description (Page 15): Shows wiring for the Multi Coil Pack Adaptor, illustrating connections to ignition coils and the remote start unit.

Testing Your Installation

CAUTION: Installation testing is the responsibility of the installing technician. Failure to test properly may result in injury or property damage.

Hood Pin Safety Shut Down Test:

1. With the driver's window down, start the vehicle using the RF transmitter.
2. Reach inside, pull the hood release.
3. Raise the hood and confirm the remote start unit shuts down.

If the test fails, recheck the pin switch connection to the Gray/Black wire. DO NOT RELEASE VEHICLE UNTIL HOOD PIN FEATURE IS CONFIRMED.

Manual Shut Down / Enable Circuit Test:

1. Place the control switch in the 'on' (Closed To Ground) position.
2. Start the vehicle using the RF transmitter.
3. The vehicle should start and run.
4. Move the switch to the 'off' (Open From Ground) position; the vehicle should shut off.

If the test fails, recheck the enable switch connection to Ground and the Black/White wire. DO NOT RELEASE VEHICLE UNTIL MANUAL SHUT DOWN FEATURE IS CONFIRMED.

Neutral Start Safety Test:

The Yellow Starter wire must be connected to the ignition switch side of the Neutral Start Switch. This prevents starting in any gear other than Park or Neutral.

1. Set the parking brake.
2. Block drive wheels.
3. Temporarily disconnect the Brown/Black positive shut down wire from the vehicle's brake switch.
4. Start the engine using the ignition key.
5. Step on the brake pedal and shift to reverse.
6. Allow transmission to shift, then turn the ignition switch off (do not remove the key).
7. With the brake pedal depressed, attempt to start the vehicle using the RF transmitter. The car should not start.
8. Repeat with the gear selector in Drive. If the unit attempts to start, recheck the Yellow Wire's connection.

CAUTION: Reconnect the Brown/Black wire disconnected in step 3. DO NOT RELEASE VEHICLE UNTIL NEUTRAL SAFETY FEATURE IS CONFIRMED.

Mechanical Neutral Safety Switch Considerations

Mechanical neutral safety switches do not offer electrical safety. To prevent remote start operation if the key is left in the ignition, a safety wire must be connected from the remote start device to the vehicle's Park/Neutral ECM Input or key-in sensor.

Park / Neutral ECM Input:

This is the preferred installation method. It involves reconfiguring control switch wiring and adding a 4000 series diode. Connect the diode's cathode (striped end) to the vehicle's reference wire (e.g., Orange/Black in GM vehicles), and the anode (non-striped end) to one side of the remote start enable switch. Connect the other side of the enable switch to the Black/White enable input wire of the remote start unit.

Key In Sensor Circuits:

If the ECM reference wire is unavailable, two alternative key-in sensor circuits can be used. These methods ensure the vehicle will not start in gear if the key is in the ignition. Note: If the operator inserts the ignition key while the remote start is active, the vehicle will shut down. This behavior differs from normal operation and must be explained to the customer.

Method 1: Involves connecting a control wire from the driver's door pin switch to the key-in sensor switch, cutting the key-in sensor switch wire to the chime module, and using a relay and diode. A second diode may be needed for the hood open/shut down circuit.

Method 2: Involves similar connections but uses a diode to connect the ignition cylinder side of the key-in sensor switch wire to the Remote Start Negative Safety Shut down Wire (Gray/Black).

Diagram Description (Page 17): Shows a typical GM Park/Neutral ECM input circuit and mentions key-in sensor circuits.

Diagram Description (Page 18): Illustrates Method 1 for connecting to the key-in sensor circuit, including relay and diode connections.

Diagram Description (Page 19): Illustrates Method 2 for connecting to the key-in sensor circuit.

After completing alternate configurations, retest using the NEUTRAL START SAFETY TEST.

Completing the Installation

1. Place the red rubber handle cover over the control switch for identification.
2. Mount the control module securely behind the dash, ensuring it does not inhibit vehicle controls.
3. Harness and tie all wiring away from hot or moving parts, especially around the steering shaft and column.
4. Apply caution labels in the engine compartment.
5. Check vehicle wipers, lights, horn, etc., for proper operation.
6. Replace all removed panels and retest the system.
7. Explain all activated features and safety systems to the customer.

Wiring Diagram Overview (Page 20)

The comprehensive wiring diagram shows connections for the Antenna Receiver Assembly, Control Module (PRO-9175FT4), Program Switch, and various input/output harnesses:

• Auxiliary Outputs: Black/Blue (Before Start), Black/Green (After Start), Black/Red (After Shutdown), Black/Yellow (During Crank).
• Door Lock Outputs: Red/Black (Neg. 2nd Unlock), Green (Pos Lock, Neg. Unlock), Red (Neg. Lock, Pos. Unlock).
• Input/Output Wires: Yellow/Black (to controlling alarm ignition input), Green/Orange (to vehicle tach signal), Black (to chassis ground), Gray/Black (negative inhibit wire), Blue/Black (external negative trigger input), Green/White (low current dome/illumination output), Dk. Blue (Channel 3 output), Green/Black (Channel 4 output).
• Parking Light Source: White wires connect to +12V for positive switched or chassis ground for negative switched parking lights.
• Other Connections: Brown/Black (positive shutdown to brake light switch), Brown (positive inhibit wire), Black/White (control safety switch/hood pin switch), Gray (negative shutdown wire/hood pin switch), Light Blue (Ignition 3 output, 300mA max current).