Pyro Disconnect - HV Battery (Remove and Replace)
Correction code
1630011502
FRT
1.08
NOTE: Unless
otherwise explicitly stated in the procedure, the above correction code and
FRT reflect all of the work required to perform this procedure, including
the linked procedures. Do
not stack correction codes unless explicitly told to do so.
NOTE: See Flat Rate Times to learn more about FRTs and how they are
created. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com.
NOTE: See Personal Protection to make
sure wearing proper PPE when performing the below procedure.
- 1467483-00-B - M3/Y Ancillary Bay Service Insulator Kit
- 1057602-00-A Ratchet, 1/4" Sq Dr, HV Insulated
- 1057606-00-A Skt, 1/4" Sq Dr, 13mm, HV Insulated
- 1131071-00-A Dummy Disconnect, Pyro, Safety
- 1108272-00-B Cap, Logic Conn, Inv, 3DU
- 1076927-00-A Resistance meter, microohm, Hioki RM 3548
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 at all times a high voltage
cable, busbar, or fitting is handled. Refer to Tech Note TN-15-92-003, High Voltage Awareness
Care Points
for additional safety
information.
Torque Specifications
Description | Torque Value | Recommended Tools | Reuse/Replace | Notes |
---|---|---|---|---|
Bolts (x2) that attach the pyrotechnic battery disconnect to the HV battery |
![]() 9 Nm (6.6 lbs-ft) |
|
Replace |
Remove
-
Remove the ancillary bay cover. See
PENTHOUSE COVER (Remove and Replace).
WarningHV insulating gloves and leather glove protectors must be worn throughout the remainder of this procedure. Do not remove gloves or protectors until otherwise noted.
- Inspect ancillary bay for any missing insulators. Install insulators from the service insulator kit as required.
- Remove the pyrotechnic battery disconnect insulator.
-
Remove and discard the bolts (x2) that
attach the pyrotechnic battery disconnect to the HV battery, and then remove the
pyrotechnic battery disconnect from the vehicle.
TIpUse of the following tool(s) is recommended:
- Insulated tools:
- 13 mm socket
- Ratchet/torque wrench
- Insulated tools:
- Install the dummy disconnect where the pyrotechnic battery disconnect was removed.
Install
-
Perform a zero adjust of the
Hioki resistance meter in preparation to measure resistances later in this
procedure.
WarningHV insulating gloves and leather glove protectors must be worn throughout the remainder of this procedure. Do not remove gloves or protectors until otherwise noted.
- Remove the pyro disconnect dummy.
- Use an IPA wipe to clean the HV mating surfaces of the shunt, busbar, and the pyrotechnic battery disconnect.
-
Set the multimeter to the
"LoZ" (low impedance) mode.
NoteFor Fluke multimeters without "LoZ" mode on the mode selector, see Multimeter (LoZ Setting).
-
Measure the voltage between the busbar
(left) and shunt (right) for at least 10 seconds, so as to balance the voltage across
the pyrotechnic battery disconnect mounting points.
NoteThe voltage displayed on the multimeter is not as important as balancing the mount points.
- While still measuring the voltage, have an assistant position the pyrotechnic battery disconnect into the HV battery for installation. Make sure to align the pins of the connector with the new pyrotechnic battery disconnect, and then press the pyrotechnic battery disconnect down onto the busbars.
-
Install new bolts (1104475-00-F x2)
that attach the pyrotechnic battery disconnect to the HV battery, and mark the bolts
with a paint pen after they are torqued.9 Nm (6.6 lbs-ft)TIpUse of the following tool(s) is recommended:
- Insulated tools:
- 13 mm socket
- Ratchet/torque wrench
- Insulated tools:
-
Use the Hioki resistance meter to
measure the resistance at the HV joint between the newly-installed pyrotechnic battery
disconnect and the module 2 busbar.
NotePreform zero adjust to Hioki meter prior to measuring.NoteThe maximum acceptable resistance is 0.060 mΩ (60 μΩ). If there is too much resistance in the High Voltage joint, remove the fastener, clean areas with isopropyl alcohol, install fastener back and test again.
-
Use the Hioki resistance
meter to measure the resistance at the HV joint between the newly-installed
pyrotechnic battery disconnect and the shunt.
NotePreform zero adjust to Hioki meter prior to measuring.NoteThe maximum acceptable resistance is 0.045 mΩ (45 μΩ). If there is too much resistance in the High Voltage joint, remove the fastener, clean areas with isopropyl alcohol, install fastener back and test again
- Remove the service insulator kit.
-
Install the ancillary bay cover. See
PENTHOUSE COVER (Remove and Replace).
NoteBefore installing the ancillary bay cover, inspect the ancillary bay cover seal and confirm there is no visual damage. If the seal is torn and/or delaminated, replace the ancillary bay cover.