SKSNG907, SKSNG907G, SKSNG907RV & SKSNG907RVG Installation Manual

There is a battery quick disconnect that should be used to disconnect the chassis battery ground before performing this bypass

The battery disconnect instructions are for general reference only. For instructions and chassis specific details, refer to your vehicles owner manual before performing this disconnect.

The battery disconnect instructions are for general reference only. For instructions and chassis specific details, refer to your vehicles owner manual before performing this disconnect.

Battery disconnect is located under the driver side dash to the right of the accelerator pedal

Remove access panel above and to the right of the accelerator pedal

Locate battery quick disconnect cable behind access panel

There is a red tab on the top of the disconnect cable. To release the cable from the post, the red tab needs to be pushed downward

Push the red tab downward to release the cable and pull towards the rear of the cable at the same time to remove cable from post

Carefully place battery disconnect cable to the side

ATTENTION: IF INSTALLING THIS SYSTEM ON A GASOLINE SPRINTER, PLEASE MAKE SURE THE FIRMWARE IS 5.23 OR ABOVE

Pull back weather seal from driver door jam

Using a pry tool remove intermediate panel between A pillar and kick panel

Remove the 2 x T20 screws from the sill cover

Remove sill cover and carefully set aside

Remove 1 x T20 from below hood release

Remove 1 x T20 from bottom of kick panel

Remove plastic push fastener next to knee bolster

Remove plastic push pin from kick panel (behind hood release)

Remove 3rd plastic push fastener from kick panel

Remove kick panel

Route hood release through kick panel opening

Be careful of OBD harness

Disconnect OBD harness

Carefully route hood release through opening and set trim piece panel aside

Un-clip PCM module from bracket in back of kick area (towards driver front tire)

Locate black 32 pin plug on PCM module

Unlatch and unplug black 32 pin connector from PCM module

Plug connector into mating black 32 pin plug on T-harness

Connect and latch 32 pin black plug from T-harness into PCM module where plug was removed in last step

Locate EIS module in driver kick (mounted to exterior wall below A pillar)

Unlatch and unplug 40 pin blue connector from top of EIS module

Connect 40 pin blue connector from EIS to mating connector on T-harness

Connect and latch blue or red 32 pin connector from T-harness to top of EIS module where plug was removed in previous step

Place and clip PCM module back into bracket

Remove battery from extra factory fob

One side of the battery emulator has a foam strip and text that reads ‘BOTTOM OF KEY’

Insert the battery emulator in the battery cavity of key with side that reads ‘BOTTOM OF KEY’ facing the side of the key with no buttons

IMPORTANT: When installing the key in the box, make sure that the plastic insert in the key box is pushing DOWN on the UNLOCK button. The insert must be holding the UNLOCK button DOWN on the key when the box is closed

Put key inside box and slide button pusher over the center of the UNLOCK button

Put lid on box and fasten the 4 screws. Confirm that the unlock button on the key is being pressed when the box is closed

Connect the 2 pin white plug from the key box to the 2 pin white port labeled ‘KEY’ on the module labeled ‘SmartKey Starter’

SKSNG907 and SKSNG907RV version 5.26 and up include a hood pin. Units are now shipping with a custom hood pin bracket to make mounting easier. If you did not receive a hood pin bracket and would like one, please contact us at sales@midcityengineering.com

MY 2025 Sprinters have an OEM hood pin. SKSNG907G & SKSNG907RVG do not include a hood pin & hood pin installation is not needed for MY 2025

Mount hood pin and bracket under hood in location shown in picture. When hood is opened, the hood pin should be grounded

Run wire from hood pin securely through firewall and run to driver side under dash area

MY 2025 Sprinters have an OEM hood pin. SKSNG907G & SKSNG907RVG do not include a hood pin & hood pin installation is not needed for MY 2025

Run wire from hood pin securely through firewall and run to driver side under dash area

Connect wire from hood pin to gray wire on included 6 pin pigtail (solder and insulate). Connect pigtail to 6 Pin EXP port on module labeled SKSPCM

Insulate all other wires on 6 pin pigtail that are not being used in other application (expansion port covered later in installation instructions)

Reconnect battery disconnect cable from to post from step 2

Ensure that cable locks into place on post. You should feel the tab lock into place. Once connected, you should not be able to remove cable from post without pressing red tab downward

Replace access panel

Make sure that vehicle is in a safe place to start engine

Close all doors on vehicle

On factory key fob, hit ‘LOCK-UNLOCK-LOCK’ buttons in sequence.

Roll down driver side window

From outside vehicle, close and lock doors with factory key fob

Reach inside driver window and open door from inside handle

Alarm should sound (factory horn) and lights should flash

Press unlock on factory remote to disarm alarm

Mount SmartKey Starter® and SKSPCM module in secure location. Suggested location is to wiring harness in driver under dash

Mount key box in secure location. It is recommended to mount the key box further up into dash area for additional key security

Mount all modules away from any heat sources or moving parts

Re-assemble vehicle in reverse order of disassembly steps

The provided warning sticker must be installed in this location or your SmartKey Starter® warranty will be voided

Install provided warning sticker on intermediate panel between A pillar and kick panel

To install optional Compustar DAS sensor, connect data cable from DAS sensor to red port labeled Sensor on module labeled SmartKey Starter

Mount sensor and cable securely and not near any moving parts, pedals, or any heat sources.

Sensor must be mounted to something rigid in order to detect tilt and impact. An optional sensor mounting location is on the plastic dash panel to the left of the climate controls. Click here for picture.

The DAS sensor settings and sensitivity can be adjusted two ways: on the buttons on the sensor directly, or in the SmartKey Starter® menu. For menu instructions,click here to see Owners Manual and Operating Instructions

To adjust the sensor using the buttons on the sensor, lock doors with OEM remote and all doors closed to arm alarm.

Once the alarm is armed, there will be a 30 second window in which the buttons on the DAS sensor can be used to adjust sensitivity.

The SKSNG907 and SKSNG907RV with software version 5.26 and up include a 6 pin expansion port and pigtail. This is a 6 wire pigtail with a white plug. The gray wire is used for hood pin (required), as covered in step 20. With this port, you can also add optional expansions:

Physical valet switch (remote starter on/off). When purple wire is grounded, system is in valet mode (remote starter off)

External siren. Brown wire provides siren output (+) for use with included alarm

High idle off input (disables high idle during remote/auto start). Note: only available for SKSNG907RV. When yellow wire is grounded, high idle will be disabled during remote/auto start.

Shock/tilt sensor disable. Note: only if Compustar DAS sensor is added. When orange wire is grounded, DAS sensor will be disabled.

Black wire is used to supply a ground for siren and/or for use with a switch to use any of the above inputs

The gray wire is the hood pin input. This is not optional and covered in step 20.

Solder and insulate all connections. Insulate exposed end of any wire on this pigtail that is not used.

The SKSNG907RV includes an analog start/stop trigger to operate the remote start from an external trigger. The cable has a white 4 pin plug and, if using external start/stop triggers, will plug into the white or green 4 pin plug labeled Trigger Input on the module labeled SKSPCM. Refer to this diagram for wiring.

The trigger has 2 configurations, 1 wire or 2 wire. The 1 wire configuration (default) will start the engine when the start wire is grounded (green). The 2 wire configuration has a separate start wire (green) and stop wire (white). In the 2 wire configuration, a momentary ground on the start/stop wires will execute the command

The 1 wire configuration is the default setting. To change to the 2 wire configuration, you can use the SmartKey Starter® menu. The trigger configuration is in a hidden menu. For instructions getting into the hidden menu, please contact Mid City Engineering at 312-421-1114 or sales@midcityengineering.com

***Note: when using this auto start with external 1-wire trigger (latched ground to start and run) the system will re-start if a new signal is applied to start wire after run-time expiration. The system will continue running and re-starting if the system receives new commands to start.

For Sprinters without the volume and mute buttons on the steering wheel, if the SmartKey Starter firmware is below V5.25, you will need to use a USB programming tool to change this setting

If analog input(s) not being used, the 4 pin white input cable should not be plugged into the SKSPCM module.

Be sure to insulate all wires not used on the cable.