Tesla Model S: Forward Junction Box - 2nd Generation - 40 Amp Fuse (RWD) (Remove and
Replace)
Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
minimum rating of class 00 (500V) must be worn any time a high
voltage cable is handled. Refer to Tech Note TN-15-92-003, "High
Voltage Awareness Care Points" for additional safety information.
Note: This procedure only applies to RWD vehicles with the
2nd generation High Voltage configuration. The Forward Junction Box
(FJB) is part of the DCDC converter for vehicles with the 1st
generation High Voltage Configuration.
Special tools required for this procedure:
Supplier
|
Part Number
|
Description
|
Tesla |
1058193-00-A |
Fuse Puller, large (blue) |
Tesla |
1051659-00-A |
Access Service Tool, Frunk
|
Removal
- Perform the vehicle electrical isolation procedure (refer
to procedure).
- Remove the underhood storage unit (refer to procedure).
- Position the frunk access service tool.
- Disconnect the clips (x4) that secure the coolant hose to the
crossbar.
- Remove the crossbar from the vehicle.
- Release the bolts (x6) that secure the forward junction box
cover (torque 6.5 Nm). Remove the cover.
Warning: Before continuing, put on high voltage gloves.
- Use a small, insulated screwdriver or similar tool to pry open
the cover on the RH side of the FJB.
Warning: Do not use a metallic tool to open the
cover.
- Use a multimeter to check voltages between:
- B+ to ground
- B- to ground
- B+ and B-
Warning: If any voltage reading is more than 10V,
the contactors are not fully opened. Discontinue this
procedure immediately. Contact a Field Service Engineer
before performing any further work.
- Remove the screws (x3) that secure the plastic cover (torque 3
Nm).
- Use the fuse puller to remove the fuse.
Installation
Installation procedure is the reverse of removal.
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Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
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Removal
Remove the LH lower 'B' post trim (refer to procedure).
Remove the plastic trim that covers the seat belt fixing on the
driver's seat.
Remove the bolt that secures the fixed seat belt end to
Removal
Lower window glass.
Using a suitable tool release outer belt seal, starting at the
mirror and working backwards.
Caution: Protect paintwork from possible damage during
this procedure.
Caution: Take care not to damage component(s).