INETRMOTIVE AIM605 Chevrolet Express GMC Savana Module Instruction Manual

June 9, 2024
INETRMOTIVE

INETRMOTIVE AIM605 Chevrolet Express GMC Savana Module

INETRMOTIVE-AIM605-Chevrolet-Express-GMC-Savana-Module-
PRODUCT

As of firmware version 4.70, the option of locking or unlocking non-OEM switches such as doors or cabinets with the OEM key is available. To enable this feature, specify which outputs are desired on the AIM Spec Sheet.

Introduction

The AIM605 provides three major functions to facilitate the production of emergency vehicles. First, it provides a fast idle feature that triggers from a number of configurable sources including battery voltage, a Parking Brake and a discrete input. Second, it provides 8 outputs that can be configured to turn on in response to a variety of vehicle data. These outputs are used to drive various external loads. Lastly, it remotely controls the door locks via the vehicle network, eliminating complicated wiring.

Installation Instructions

Disconnect the battery before proceeding with the installation.

CAUTION
All electronic products are susceptible to damage from Electrostatic Discharge or ESD. Ground yourself before handling or working with the module and harnessing by first touching the chassis ground, such as the barrel of the cigarette lighter.

It is the installer’s responsibility to route and secure all wiring harnesses where they cannot be damaged by sharp objects, mechanical moving parts and high heat sources. Failure to do so could result in damage to the system or vehicle and create possible safety concerns for the operator and passengers. It is important to avoid placing the module where it could encounter strong magnetic fields from high-current cabling connected to motors, solenoids, etc. Also avoid radio frequency energy from antenna or inverters next to the module. Finally, avoid high voltage spikes in vehicle wiring by always using diode-clamped relays when installing upfitter circuits.

AIM605 Module
Remove the lower dash panel below the steering column and find a suitable location to mount the AIM605 module. Do not mount the module where it will be exposed to excessive heat. Do not mount the module until all wire harnesses are routed and secure. The last step of the installation is to mount the module.

Data Link Harness (6-pin connector)

  1. Locate the vehicle’s OBDII Data Link Connector. It will be mounted below the lower left dash panel.
  2. Remove the mounting screws for the OBDII connector. Plug the Red connector from the AIM605 Data Link Harness into the vehicle’s OBDII connector. Ensure the connection is fully seated and secure with the supplied wire tie.
  3. Mount the pass-through connector from the AIM605 Data Link Harness in the former location of the vehicle’s OBDII connector.
  4. Secure the AIM Data Link harness so that it does not hang below the lower dash panel.

Fast Idle

The fast idle system controls engine idle RPM in response to a number of triggers in order to increase the electrical and mechanical output of the vehicle. By default, gas engines idle at 1500 RPM while diesel engines idle at 1200 RPM.

Fast Idle Engage Input (4-Pin Connector)

Engage Input
Attach the AIM605 Harness connector Pin #1 Green/White wire on the 4-pin connector to any equipment that provides a ground signal when the fast idle needs to be engaged. (PTO, pump, etc….).

Fast Idle Triggers

Trigger Name| Trigger Conditions| Disable Conditions
Manual Engage Input| Fast Idle Engage Input wire activated| Fast Idle Engage Input wires not active
VBAT Low (if enabled)| VBAT < 12.5V (default)| VBAT > 13.5V for > 5 minutes (default)
Parking Brake (if enabled)| Parking Brake applied| Parking Brake Released

Fast Idle Preconditions

The following preconditions must be met prior to initiating the Fast Idle operation:

  • Vehicle speed zero
  • Transmission in Park
  • The accelerator pedal must not be applied
  • Engine Coolant temperature less than 230ºF
  • Engine RPM must be greater than 200 and less than 2800
  • Service Brake not applied
  • A parking Brake must be applied if this feature is enabled

Pin Mode AIM Application

The outputs can be configured from the factor for various modes, as described below. Momentary mode is the most commonly used, where output is ‘active’ only when the proper conditions have been met.

Momentary:
Output follows the condition set but with a turn-on delay and a turn-off delay. Setting ‘On Delay’ and ‘Off Delay’ to zero causes the output pin to simply “follow” the condition set being true (ON) and false (OFF ).INETRMOTIVE-AIM605-Chevrolet-Express-GMC-Savana-Module-FIG-
\(4\)

Latching:
This mode will latch an output pin ON, starting ‘On Delay’ seconds after the conditions are met, and will keep it ON even after the conditions are no longer true. It will then latch the output OFF, following ‘Off Delay’ seconds after the conditions are met again. Think of it as toggle on-toggle off. The simplest use would be when using a momentary button as the only input condition and setting the Delays to zero. Thus a load could be turned on by pushing a momentary button and turned back off by pushing the button a second time.INETRMOTIVE-AIM605-Chevrolet-Express-GMC-Savana-Module-FIG-
\(5\)

Time Hold:
The output pin goes ON after the conditions become true, and stays ON for the selected ‘On Time’, regardless of the conditions. Time is Not Applicable .INETRMOTIVE-AIM605-Chevrolet-Express-GMC-Savana-Module-FIG-
\(6\)

Time Delay:
Output is turned ON after the selected ‘delay’ time after the conditions are met. It stays on for selected ‘On time’, regardless of input conditions .INETRMOTIVE-AIM605-Chevrolet-Express-GMC-Savana-Module-FIG-
\(7\)

Flashing—Momentary:
Used for creating a flashing output. When conditions are met, output flashes. When conditions are no longer met, flashing stops. Flashing ON and OFF times (duty cycle) are controlled by entering the following values.INETRMOTIVE-
AIM605-Chevrolet-Express-GMC-Savana-Module-FIG- \(8\)

Flashing – Latching:
Same as above, except flashing will continue after conditions are no longer true, and will stop when conditions become true again—toggle ON, toggle OFF. Duty cycle is controlled by the ON and OFF times.INETRMOTIVE-AIM605
-Chevrolet-Express-GMC-Savana-Module-FIG- \(9\)

AIM605 Output pin-out definition

Outputs 2-8 are configurable by Intermotive as either active high (12V) or active low (ground). Each of these outputs are rated at 1/2A and are intended to drive relay coils or other low-current loads. Output 1 is a high current (8A max.) output and should be fused. The output sensing for Output 1 (Pin #2 Purple wire on the 4-pin connector) depends on the input at Pin #4 (Tan wire) on the 4-pin connector (i.e., 12V on Pin #4 will output 12V on Pin #2 when Output 1 is active).

The 8 outputs are defined as follows:

  • Pin #1 N/C
  • Pin #2 (Green Wire) Output 2
  • Pin #3 (White Wire) Output 3
  • Pin #4 (Gray Wire) Output 4
  • Pin #5 (Blue/White Wire) Door Unlock Input
  • Pin #6 N/C
  • Pin #7 N/C
  • Pin #8 (Brown Wire) Output 5
  • Pin #9 (Orange Wire) Output 6
  • Pin #10 (Blue Wire) Output 7
  • Pin #11 (Yellow Wire) Output 8
  • Pin #12 N/C
  • Pin #1 (Green/White Wire) General Purpose Input 1
  • Pin #2 (Purple Wire) Output 1
  • Pin #3 (Pink Wire) General Purpose Input 2
  • Pin #4 (Tan Wire) Output 1 Source

Connect the desired outputs to vehicle equipment as needed. Tape up unused leads. When connecting to relays, use relays with appropriate kick-back suppression, such as Digikey #PB682-ND. Unsuppressed relays will induce very high voltage spikes throughout modern vehicles’ sensitive computer electronics and should not be used, per Ford, GM, SAE, etc.

By default, all outputs are active low and configured as follows:

  • Output #1 (Purple wire) Engine Cranking
  • Output #2 (Green wire) TR = Park
  • Output #3 (White wire) Parking Brake Applied
  • Output #4 (Gray wire) TR = Reverse
  • Output #5 (Brown wire) Ignition On
  • Output #6 (Orange wire) Engine Running
  • Output #7 (Blue wire) Right Turn Signal On
  • Output #8 (Yellow wire) Left Turn Signal On

Door Unlock
The AIM605 can unlock the OEM doors via the OBDII interface if triggered while the vehicle is in Park with the ignition On. Momentarily (greater than half a second) applying battery power to pin 5 Blue/White wire on the 12-pin connector causes the unlock command to be sent.

By default, this feature unlocks the driver’s door but can be configured to unlock all doors.

Non-OEM Switch Lock/Unlock (Key in or out of Ignition)
The AIM605 can lock/unlock non-OEM switches (doors, cabinets, etc.) using the OEM key fob. Depending on the configuration, the lock and unlock outputs will be configured to 2 of the 8 outputs on the 12-pin connector. Each output is rated at 1/2A and is intended to drive relay coils or other low-current loads. When the key is in or out of the ignition, press the OEM key fob lock or unlock button 2 times to lock or unlock the non-OEM switches.

Reconnect the vehicle battery

During the VIN acquisition:
Scrolling LED’s between LED1 and LED5 indicates an error occurred while acquiring the VIN.

  • Verify that the chassis is supported by this product. If work was recently performed on this chassis, the VIN may have been cleared in the PCM.
  • A lit LED between LED 1 and LED 5 will indicate the following:
LED 1 Manufacturer Error
LED2 Model Error
LED3 Engine Error
LED4 Model Year Error
LED5 VIN Error

Post-Installation System Operation Test
Perform the following tests before actually mounting the module, to allow easy viewing of the diagnostic LEDs, if needed.

  1. Place the transmission in Park and start the engine. Note: Vehicle may enter Fast Idle if VBAT is low. Either wait to see if the battery charges and Fast Idle stops, or place a charger on the vehicle to disable the VBAT low trigger to allow testing of other triggers.
  2. Manually engage the Fast Idle Input by having aftermarket vehicle equipment ground the Input wire. Engine speed will increase to the set RPM level. If this does not occur, check harness connections. Also, see diagnostics below.
  3. When Fast Idle is engaged, keep the Input wire grounded, and depress the Service Brake for 1 second. Fast idle will temporarily disengage anytime the Service Brake is pressed, and will automatically reengage after approximately 2 seconds once the Brake pedal is released.
  4. Place the transmission shift lever in the “Neutral” position. (Input wire still grounded). Verify the vehicle does not go into Fast Idle.
  5. Lock all of the vehicle’s doors and momentarily (greater than half a second) apply battery power to pin 5 Blue/White wires on the 12-pin connector. Verify that all of the doors unlock, or just the driver’s door depending on the configuration.

If the AIM605 fails any of the above tests, check harnesses and review instructions, or check the diagnostics below. If necessary, call InterMotive Technical Support at 530-823-1048.

Diagnostics
Diagnostic mode is entered by momentarily pressing the Red “Test” button on the module. The module provides diagnostic LEDs which illuminate according to the following table. To exit this mode simply cycle the key or momentarily press the “Test” button again.

LED # Diagnostic Mode LED Descriptions
1 Output 1 is On
2 Output 2 is On
3 Output 3 is On
4 Output 4 is On
5 Output 5 is On
6 Output 6 is On
7 Output 7 is On
8 Output 8 is On
9 Fast Idle Input Active
10 Door Unlock Input Active
STATUS Continuously flashes two-digit status

codes. See the Status Code table

Fast Idle Status Codes
Status Codes provide the current status of the Fast Idle system. The on-board “Status” LED will flash a 2-digit code as shown in the table. The first digit will flash, wait for one second, flash the second digit, then wait four seconds before the next code. The Status Codes continue to flash until the module is reset (cycle key), or the test input is momentarily grounded again.

AFIS Status Codes

Status

Code

| Description
1-1| Ready for fast idle
2-3| Triggered: Parking Brake
2-4| Triggered: VBAT Low
2-8| Triggered: Engage Input
3-1| RPM > 2800
3-2| RPM < 200
3-3| TR not = to PARK
3-4| VSS not = to 0 MPH
3-5| Service Brake applied
3-6| TFT > 250
3-7| Need to cycle TR
3-8| ECT > 230ºF
3-9| Need to Apply PB
3-10| No Security Access

System Operation

The AIM605 provides three major functions to facilitate the production of emergency vehicles. First, it provides a fast idle feature that triggers from a number of configurable sources including battery voltage, parking brake, and a discrete input. Second, it provides 8 outputs that can be configured to turn on in response to a variety of vehicle data. These outputs are used to drive various external loads. Lastly, it remotely controls the door locks via the vehicle network, eliminating complicated wiring.

Fast Idle
The fast idle system controls engine idle RPM in response to a number of triggers in order to increase the electrical and mechanical output of the vehicle. By default, gas engines idle at 1500 RPM while diesel engines idle at 1200 RPM.

Fast Idle Triggers

Trigger Name| Trigger Conditions| Disable Conditions
Manual Engage Input #1| Fast Idle Engage Input wire activated| Fast Idle Engage Input wires not active
VBAT Low (if enabled)| VBAT < 12.5V (default)| VBAT > 13.5V for > 5 minutes (default)
Parking Brake (if enabled)| Parking Brake applied| Parking Brake Released

Fast Idle Preconditions

The following preconditions must be met prior to initiating the Fast Idle operation:

  • Vehicle speed zero
  • Transmission in Park
  • The accelerator pedal must not be applied
  • Engine Coolant temperature less than 230ºF
  • Engine RPM must be greater than 200 and less than 2800
  • Service Brake not applied
  • A parking Brake must be applied if this feature is enabled

Door Unlock (Ignition On)
The AIM605 can unlock the OEM doors via the OBDII interface if triggered while the vehicle is in Park with the ignition On. Momentarily (greater than half a second) applying battery power to pin 5 Blue/White wire on the 12-pin connector causes the unlock command to be sent. By default, this feature unlocks the driver’s door but can be configured to unlock all doors.

Non-OEM Switch Lock/Unlock (Key in or out of Ignition)
The AIM605 can lock/unlock non-OEM switches (doors, cabinets, etc.) using the OEM key fob. When the key is in or out of the ignition, press the OEM key fob lock or unlock button 2 times to lock or unlock the non-OEM switches .INETRMOTIVE-AIM605-Chevrolet-Express-GMC-Savana-Module-FIG-
\(13\)

Submit product registration atwww.intermotive.net
If the AIM605 fails any step in the Post Installation Test, review the installation instructions and the loaded configuration by running the Graphical User Interface application. If necessary, call InterMotive technical support @ 530-823-1048.

InterMotive Inc.
12840 Earhart Ave. Auburn, CA 95602.
Phone: (530)-823-1048
Fax: (530)-823-1516
www.intermotive.net.
products@intermotive.net.

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