Initial Installation

WARNING: This page is about a different car, the 2017 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect and isolate the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), disconnect the IBS connector first before disconnecting the negative battery cable.
Remove the steering column opening cover. Refer to COVER, STEERING COLUMN OPENING, REMOVAL AND INSTALLATION .
Release the lower B pillar trim and move it aside without removing it. Refer to PANEL, B-PILLAR TRIM, LOWER, REMOVAL AND INSTALLATION and PANEL, B-PILLAR TRIM, UPPER, REMOVAL AND INSTALLATION .

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Apply a strip of biadhesive Velcro to the back of the T-Box module.

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Apply the Coroplast covering tape to the parts of the T-Box module in contact with the vehicle to prevent vibration noise when it is mounted on the vehicle.

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Clean the contact surface (1) where the T-Box module will be fixed using isopropyl alcohol, heptane or an equivalent degreaser.
Apply the adhesive Velcro strip to the internal dashboard bracket (1).

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Insert the T-Box (1), already connected to its harness, inside the dashboard, while keeping it vertical.

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Position the T-Box (1) on the internal dashboard bracket and turn it to the horizontal position with the wiring facing downwards.

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Fix the T-Box in position using the bands (1) provided.
NOTE:
Take care to position the bands so that they do not also pass over the innermost metal bracket.

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Apply a section of Coroplast (1) to the blade of the metal internal dashboard bracket onto which the relay holder slide will be fitted.

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Position the T-Box relay holder slide (1) (provided in the kit) on the hole in the internal bracket and secure it using the screw with the specific nut and two washers (provided in the kit).
NOTE:
Position the relay holder slide horizontally.

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Fit the relay holder with the T-Box relay on the slide and connect it to the T-Box wire harness.

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Pass the earth lead of the T-Box harness along the internal side panel and tie (1) it to the vehicle wire harness.

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Remove the nut on the earth pin near the central pillar and open the vehicle wiring retainers along the side panel.
Insert the T-Box earth lead into the wiring retainers (1a) and close them, then position the T-Box harness earth ring (1b) on the earth pin over any existent wiring and tighten securely.
NOTE:
If there are previously removed wires connected to this earth pin, be careful to insert the earth wire of the T-Box harness so that it is offset by 90° with respect to the previous ones.

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Cut and move aside the sheathing of the car wiring.
NOTE:
Take great care not to get the cables to be joined dirty as this will adversely affect the continuity of the electrical conduction. While heating the thermal shrinking tubs, as a result of the high temperatures reached, the drier and the heat shield must not, under any circumstances, come into contact with cladding parts or other components.
Find the ignition block cable (+50 - red/green cable cross-section 2.5 mm) within the front wiring, cut it and fit the thermal shrinking connection tubes (1) onto the two sets of cables within the wiring.
NOTE:
The air heater (drier) used in this procedure is commercially available.
Use an air heater (2a) with heat shield (2b) to heat the thermal shrinking tubes (2c) until the ring of solder melts; then wait for it to cool.
NOTE:
Apply insulating tape to the two wires individually and then combine the wires with the main wiring and tape again to create a more compact bundle.

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NOTE:
Fuse F36 is the third from the top (blue) in the right- hand row in the Body Computer.
Remove fuse F36 (+30) (1) from the Body computer and fit it into the turret fuse-holder of the T-Box harness.

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Connect the connector of the new T-Box harness (with twin fuse) (1) in the position previously occupied by fuse F36 of the Body Computer.
NOTE:
Fuse F51 is the third from the top (red) in the left-hand row in the Body Computer.
Remove fuse F51 (+15) from the Body computer and fit it into the turret fuse-holder of the T-Box harness.
Connect the connector of the T-Box harness (with twin fuse) (1) in the position previously occupied by fuse F51 of the Body Computer.

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Disconnect the Body Computer's D connector (1) and remove the block which covers the internal connections.
Connect the two cables CAN L (white) and CAN H (blue) of the T-Box harness (2) to the position corresponding to pins 52 (CAN L) and 51 (CAN H) respectively and replace the block which covers the internal connections of the Body Computer D connector.

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NOTE:
When done, restore the connector wiring with a new tie.
Disconnect the Body Computer's F connector (1) and remove the block which covers the internal connections.
Connect the door opening signal cable (green) of the new T-Box harness to the pin 11 position and replace the internal connection cover block of the Body Computer F connector.

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NOTE:
Tape should be applied to the bundle of cables to increase its compactness.
Install the wiring together with the other cables and fasten the cable retainers.
Tie the wiring and secure the T-Box harness to the car wiring.
Install the lower B pillar trim. Refer to PANEL, B-PILLAR TRIM, LOWER, REMOVAL AND INSTALLATION and PANEL, B-PILLAR TRIM, UPPER, REMOVAL AND INSTALLATION .
Install the steering column opening cover. Refer to COVER, STEERING COLUMN OPENING, REMOVAL AND INSTALLATION .
Connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.
On completion of installation of the T-Box module, connect the diagnosis instrument to the car's EOBD socket, locate the BCM module and check for errors.