INFINITI M HYBRID 2013 Dismantling Guide

6-3 Lithium-ion (Li-ion) Battery Pack Removal
6-3.1
Exploded View
1. Battery inlet duct A 2. Li-ion battery assembly 3. DC/DC converter outlet duct
4. Battery outlet duct B 5. Battery outlet duct A6. Battery inlet duct B
7. Battery cooling fan 8. DC/DC converter inlet duct
6-3.2 Removal Procedure 1. Remove the service plug. Refer to Alternate Procedure 2.
2.

Insert an appropriate tool into the gap between the trunk lamp case and front trunk trim panel to
remove the trunk lamp case.
3. Disconnect the trunk lamp harness connector.
4. Remove the trunk lid weather strip.
5. Remove the front trunk trim retainer clips. AAYIA0036ZZ
41

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

9. Remove the mounting bolts (A) and then remove the 12V
battery cover (1) .
10. Disconnect the fusible link connectors (2) that are integrated with the 12V positive battery cable (1) .
11. Remove 12V 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.
12. Remove the terminal cover bolts (A) and nut (B) , then remove the terminal cover (1) . Touching high voltage components without wearing
appropriate

PPE will cause electrocution. AAYIA0072ZZ
AAYIA0073ZZ
AAYIA0074ZZ
JSCIA0013ZZ
43

13. Disconnect the high voltage harness connectors (A) .
T ouching high voltage components without wearing
appropriate PPE will cause electrocution. • Touching high voltage components without
wearing
appropriate PPE will cause
electrocution.
• Immediately cover the terminals of the
disconnected
high voltage harness connectors
using insulated tape so that they are not
exposed.
• Immediately protect the terminals of the
disconnected
battery junction box using
insulated tape so that they are not exposed.
14. Grasp the rubber base of the gas discharge tube (1) and remove from the vehicle-side discharge port (body
member) . Touching high voltage components without wearing
appropriate

PPE will cause electrocution.
15. 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. Touching high voltage components without wearing
appropriate

PPE will cause electrocution. JSCIA0014ZZ
AAYIA0075ZZ
JSCIA0015ZZ
JSCIA0016ZZ
44

16. Remove the mounting nut (A) and then disconnect the
harness from the fuse box on the left side of the trunk
room.
17. Disconnect the brake power supply backup unit harness connector (A) and remove the ground cable mounting
bolts (B) . : Vehicle front
18.

Disconnect the high voltage harness connector (A) and
harness connector (B) . : Vehicle front
Touching high voltage components without wearing
appropriate

PPE will cause electrocution. Immediately protect the terminals of the disconnected
high

voltage harness connector socket using
insulated tape so that they are not exposed. JSCIA0279ZZ
JSCIA0280ZZ
JSCIA0281ZZ
AAYIA0043ZZ
45

19. Disconnect the Li-ion battery cooling fan motor harness connector.
20.
Release the two rear seat cushion retainers.
21. 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. AAYIA0044ZZ
AAYIA0045ZZ
46

22. Remove the 4 clips ( ) and the HPCM cover (1) .
23.
Disconnect the HPCM harness connectors (1) , and remove the HPCM mounting bolts, nuts and
then the HPCM (2) .
24. Remove the high voltage battery pack mounting bolts (A) from the passenger compartment side. : Vehicle front
NO

TE:
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. Touching high voltage components without wearing
appropriate

PPE will cause electrocution. AAYIA0076ZZ
AAYIA0047ZZ
JSCIA0017ZZ
JSCIA0022ZZ
47

25. Remove the high voltage battery pack mounting bolts (A)
from the trunk side. : Vehicle front
Touching high voltage components without wearing
appropriate

PPE will cause electrocution.
26. Place a plywood panel (A) on top of the spare tire, then lift the high voltage battery pack upwards (1) and slide a
cardboard panel (B) underneath it (2) . Touching high voltage components without wearing
appropriate

PPE will cause electrocution.
27. Pull the cardboard (A) together with the high voltage battery pack (1) toward the rear of the vehicle. Touching high voltage components without wearing
appropriate

PPE will cause electrocution. JSCIA0018ZZ
JSCIA0019ZZ
JSCIA0020ZZ
48

28. Follow the procedure below to remove the high voltage battery pack from the trunk room.
Touching high voltage components without wearing appropriate PPE will cause
electrocution.
a.
Attach carabiners (A) in the positions as shown in the figure, and then connect a slinger (B)
to them.
b. Using an engine crane (A) to lift up the high voltage battery pack (1) and remove it from the trunk room. JSCIA0021ZZ
JSCIA0284ZZ
49

• Be careful that the engine crane does not contact
the trunk lid.
• Apply protection so that no scratches or other damage occurs on the vehicle body or trunk lid.
29. Remove the DC/DC converter inlet duct clips (A) and then the DC/DC converter inlet duct (1) . Touching high voltage components without wearing
appropriate

PPE will cause electrocution.
30. Remove the battery cooling fan mounting bolts (A) and remove the battery cooling fan (1) . Touching high voltage components without wearing
appropriate

PPE will cause electrocution. JSCIA0282ZZ
AAYIA0048ZZ
AAYIA0049ZZ
50