Initial Installation
- 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
.
- Make a note or take a photo of the data on the label (1) at the rear of the module. This data is necessary for the test procedure at the end of the installation.
- Apply a strip of biadhesive Velcro to the back of the T-box module.
- 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.
- Verify that the Coroplast tape around the module wiring reaches the connector. Add some Coroplast tape if necessary.
- Apply the adhesive Velcro strip to the internal dashboard bracket (1).
- Insert the T-box module (1) with its harness connected to the inside the dashboard, keeping it vertical.
- Position the T-box module (1) on the internal dashboard bracket and turn it to the horizontal position with the wiring facing downwards.NOTE:
Take care to position the cable ties so that they
DO NOT
pass over the innermost metal bracket.
- Secure the T-box module in position using cable ties (1).
- Apply a section of Coroplast (1) to the blade of the metal internal dashboard bracket onto which the relay holder slide will be fitted.
- 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.
- Fit the relay holder with the T-box relay on the slide and connect it to the T-box wire harness.
- Pass the ground lead of the T-box harness along the internal side panel and tie (1) it to the vehicle wire harness.
- Remove the nut on the ground stud (1b) near the central pillar and open the vehicle wiring retainers along the side panel.
- Insert the T-box ground 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 ground stud, 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.
- Disconnect the electrical connector C3 (1) from the Body Control Module (BCM), and remove the inner connection covering block.
- Locate pin 1 on the connector, then cut and remove 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.
- Fit the thermal shrinking connection tubes (1) onto the two sets of cables within the wiring.
- 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:
The air heater (drier) used in this procedure is commercially available.
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.
NOTE:Fuse F36 is the third from the top (blue) in the right- hand row in the Body Computer.
- Remove fuse F36 (1) from the Body computer and fit it into the turret fuse-holder of the T-box harness.
- 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 fourth one from the bottom (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.
- Disconnect the electrical connector C6 (1) from the BCM.NOTE:
When done, restore the connector wiring with a new tie.
- Remove the block (1) which covers the internal connections (2).
- Locate pins 58 (CAN-H) and 57 (CAN-L) (1).
- Use the two signal taps (2) to bypass the two existing CAN H (blue) and CAN L (white) wires and the corresponding loose wires in the module harness.NOTE:
When done, restore the connector wiring with a new cable tie.
- Connect the door opening signal wire (green) of the new T-box harness to the pin 11 position (2) and replace the internal connection cover block.NOTE:
Tape should be applied to the bundle of cables to increase its compactness.
NOTE:Position the module wiring as far as possible from metal body parts with sharp edges so that it does not interfere when subsequently removing the interior fittings from the vehicle in preparation for installation.
- Secure the T-box harness to the car wiring (1) with cables ties.
- Install the lower B pillar trim. Refer to PANEL, B-PILLAR TRIM, LOWER, REMOVAL AND INSTALLATION or 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 OBD socket, locate the BCM module and check for errors.