INFINITI Q70 HYBRID 2017 Dismantling Guide

6-2 High Voltage Battery Pack Removal
6-2.1 Exploded View1. Battery inlet duct A 2. High Voltage battery assembly 3. DC/DC converter outlet duct
4. Battery outlet duct B 5. Battery outlet duct A 6. Battery inlet duct B
7. Battery cooling fan 8. DC/DC converter inlet duct
6-2.2 Removal Procedure 1. Discharge high voltage battery. Refer to
3-3 Discharge Procedures (DG–18).
2. Remove the service plug. Refer to
Alternate Procedure 2 (Remove Service Plug) (DG–26).
3. Insert an appropriate tool into the gap between the trunk lamp case and front trunk trim panel to remove the trunk lamp case.
4. Disconnect the trunk lamp harness connector.
5. Remove the trunk lid weather strip.
6. Remove the front trunk trim retainer clips.
AAYIA0036ZZ
DG–41

7. Remove the front trunk trim panel (1) and remove the trunk floor trim panel (2) .
8. Remove the battery inlet duct A (1) , DC/DC converter outlet duct (2) and battery outlet duct B(3) .
9. Remove the DC/DC harness (1) , the 12-volt battery vent tube (2) and the high voltage harness clip (A) .
Grip the tip of the tube to remove the 12-volt battery
vent tube.
AAYIA0070ZZ
AAYIA0071ZZ
JSCIA0011ZZ
DG–42

10. Remove cover on 12-volt battery positive terminal.
11. Remove the mounting bolts (A) and then remove the12-volt battery cover (1) .
12. Remove 12-volt battery by removing the negative battery cable (1) , positive battery cable (2) and frame (3) .
To prevent damage to the parts:
a) Disconnect the negative battery cable first
b) Immediately cover the battery cables with insulated tape.
13. Remove the terminal cover bolts (A) and nut (B) , then remove the terminal cover (1) .
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
14. Disconnect the high voltage harness connectors (A) . Touching high voltage components without wearing
appropriate personal protective equipment (PPE) will
cause electrocution.
AAYIA0072ZZ
AAYIA0074ZZ
JSCIA0013ZZ
JSCIA0014ZZ
DG–43

DANGER
•Touching high voltage components without
wearing appropriate Personal Protective
Equipment (PPE) will cause electrocution.
•
Immediately cover the terminals of the
disconnected high voltage harness connectors
using insulated tape so that they are notexposed.
•
Immediately protect the terminals of the
disconnected battery junction box using
insulated tape so that they are not exposed.
15. Grasp the rubber base of the gas discharge tube (1) and remove from the vehicle-side discharge port (body
member) .
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
16. Hook approximately 15mm (A) from the end of the gas discharge tube (1) onto the tube base on the battery and
check that the flange on the end of the tube does not
come off from the tube base.
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
17. Remove the mounting nut (A) and then disconnect the harness from the fuse box on the left side of the trunkroom.
AAYIA0075ZZ
JSCIA0015ZZ
JSCIA0016ZZ
JSCIA0279ZZ
DG–44

18. Disconnect the capacitor harness connector (A) andremove the ground cable mounting bolts (B) .
: Vehicle front
19. Disconnect the high voltage harness connector (A) and harness connector (B) .
: Vehicle front
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
DANGER
Immediately protect the terminals of the disconnected
high-voltage harness connector socket using insulated
tape so that they are not exposed.
20. Disconnect the fusible link connectors (2) that are integrated with the 12-volt positive battery cable (1) .
JSCIA0280ZZ
JSCIA0281ZZ
AAYIA0043ZZ
AAYIA0073ZZ
DG–45

21. Disconnect the atmospheric pressure sensor harnessconnector (A) .
22. Disconnect the high voltage battery cooling fan motor harness connector.
23. Release the two rear seat cushion retainers.
24. Lift up and pull out the rear seat cushion (1) and then remove the rear seat back nuts (3) . Lift up the rear seat
back (2) and remove it.
A
AAYIA0406ZZ
AAYIA0044ZZ
DG–46

25. Remove the 4 clips () and the HPCM cover (1) .
26. Disconnect the HPCM harness connectors (1) , and remove the HPCM mounting bolts, nuts and
then the HPCM (2) .
AAYIA0045ZZ
AAYIA0076ZZ
DG–47

27. Remove the high voltage battery pack mounting bolts (A)from the passenger compartment side.
: Vehicle front
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
NOTE:
It is possible to access the mounting bolts (1) when the
noise insulation sheet that is attached to the body panel
behind the rear seat back is removed.
28. Remove the high voltage battery pack mounting bolts (A) from the trunk side.
: Vehicle front
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
AAYIA0047ZZ
JSCIA0017ZZ
JSCIA0022ZZ
JSCIA0018ZZ
DG–48

29. Place a plywood panel (A) on top of the spare tire, thenlift the high voltage battery pack upwards (1) and slide a
cardboard panel (B) underneath it (2) .
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
30. Pull the cardboard (A) together with the high voltage battery pack (1) toward the rear of the vehicle.
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
31. Follow the procedure below to remove the high voltage battery pack from the trunk room.
DANGER
Touching high-voltage components without wearing appropriate Personal Protective
Equipment (PPE) will cause electrocution.
a. Attach carabiners (A) in the positions as shown in the figure, and then connect a slinger (B)to them.
JSCIA0019ZZ
JSCIA0020ZZ
JSCIA0021ZZ
DG–49

b. Using an engine crane (A) to lift up the high voltage battery pack (1) and remove it from thetrunk room.
• Be careful that the engine crane does not contactthe trunk lid.
• Apply protection so that no scratches or other damage occurs on the vehicle body or trunk lid.
32. Remove the DC/DC outlet duct, battery outlet duct B, and battery inlet duct A.
33. Remove the DC/DC inlet duct. Clip (A) is not visible because it is located on the reverse side of the DC/DC
inlet duct (1) . Remove as shown in the figure.
DANGER
Touching high-voltage components without wearing
appropriate Personal Protective Equipment (PPE) will
cause electrocution.
JSCIA0284ZZ
JSCIA0282ZZ
AAYIA0048ZZ
DG–50