02/03/2020 13:50:14
HV Harness - Rear Drive Unit to HVJB - Small Rear Drive Unit (Remove and Replace)
Correction Code 44500902
Warning
Only technicians who have been
trained in High Voltage Awareness and have completed all required certification
courses (if applicable) are permitted to perform this procedure. Proper personal
protective equipment (PPE) and insulating HV gloves with a minimum rating of
class 0 (1000V) 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.
Special tools required for this procedure:
Supplier | Part Number | Description |
Tesla | 1051629-00-A | Cap, Connection, Rosenberger, H4Z001-000/52 |
Removal
- Position the vehicle in preparation for raising it, but keep the vehicle at ground level at this time.
- Perform the vehicle HV disablement procedure (refer to procedure).
-
Remove the high voltage junction box (HVJB) cover (refer to procedure).
WarningPerform all of the voltage checks listed in the procedure. If any voltage reading is more than 10V, the high voltage contactors are not fully opened. Due to the risk of electrocution, contact Service Engineering before performing any further work.
-
Remove the nuts (x2) that
secure the B+ and B- battery/drive inverter HV cables to the HVJB (torque 9
Nm).
NoteIt is not necessary to replace the fastener(s) after it is removed. The threaded area has a reusable dry sealant, which looks similar to adhesive patch material.
- Remove the bolt that secures the HV fuse ground strap to the body (torque 5.5 Nm).
- Release the edge clips (x2) that secure the HV harness to the body of the vehicle.
- Carefully release the grommet from the body.
- Remove the mid aero shield (refer to procedure).
-
Remove and discard the screws (x4) that secure the B+ and B- HV cables to
the rear drive unit (torque 7 Nm).
- Install protective caps over both HV cables to protect the terminals and seals.
-
Release the cable ties (x2) that secure the HV cables to the body of the
vehicle.
- Lower the vehicle.
- Working from inside the vehicle, remove the HV harness.
Installation
Installation procedure is the reverse of removal, except for the following:
CAUTION
Replace all patchbolt(s).
- Apply P-80 emulsion to the cable grommet and ensure that grommet is fully seated.
- Apply P-80 emulsion to the
connector seals on the HV cables before securing the HV cables to the drive
unit.CAUTIONDo not apply P-80 emulsion to the HV terminals.