Nissan Leaf. Manual - part 999

PG-8

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Circuit Breaker

INFOID:0000000010593505

The PTC thermistor generates heat in response to current flow. The

temperature (and resistance) of the thermistor element varies with

current flow. Excessive current flow will cause the element's temper-

ature to rise. When the temperature reaches a specified level, the

electrical resistance will rise sharply to control the circuit current.

Reduced current flow will cause the element to cool. Resistance falls

accordingly and normal circuit current flow is allowed to resume.

12V Battery

INFOID:0000000010593506

NOTE:

VCM charges the 12V battery for 5 minutes when the vehicle power is not turned ON for a set period of time

(120 h). Refer to 

EVC-59, "AUTOMATIC 12V BATTERY CHARGE CONTROL : System Description"

.

Harness Connector

INFOID:0000000010593507

NOTE:

The color of the high voltage harnesses and connectors is orange. Do not carelessly touch these harnesses

and connector.

HARNESS CONNECTOR (TAB-LOCKING TYPE)

• The tab-locking type connectors help prevent accidental looseness or disconnection.

• The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the figure

below.

CAUTION:

To prevent damage to the parts, never pull the harness or wires when disconnecting the connector.

SEL109W

Type

51R

20 hour rate capacity

[V – Ah]

12 – 43

Cold cranking current (For reference value)

[A]

410

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COMPONENT PARTS

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[Example]

HARNESS CONNECTOR (SLIDE-LOCKING TYPE)

• A new style slide-locking type connector is used on certain systems and components, especially those

related to OBD.

• The slide-locking type connectors help prevent incomplete locking and accidental looseness or disconnec-

tion.

• The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the figure

below.

• After connecting the connector, check that the slider is located in the correct position.

CAUTION:

• To prevent damage to the parts, never pull the harness or wires when disconnecting the connector.

• To prevent damage to the parts, be careful not to damage the connector support bracket when dis-

connecting the connector.

SEL769DA

PG-10

< SYSTEM DESCRIPTION >

COMPONENT PARTS

[Example]

HARNESS CONNECTOR (LEVER LOCKING TYPE)

• Lever locking type harness connectors are used on certain control units and control modules such as ECM,

ABS actuator and electric unit (control unit), etc.

• Lever locking type harness connectors are also used on super multiple junction (SMJ) connectors.

• Always confirm the lever is fully locked in place by moving the lever as far as it will go to ensure full connec-

tion.

CAUTION:

SEL769V

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COMPONENT PARTS

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Always confirm the lever is fully released (loosened) before attempting to disconnect or connect these

connectors to avoid damage to the connector housing or terminals.

HIGH VOLTAGE HARNESS CONNECTOR (2-STEP TYPE, 3-STEP TYPE)

• 2-step type and 3-step type connectors are used for specific high voltage parts.

• For secure connection, check that the slider is pressed all the way when connecting the high voltage con-

nector.

2-Step Type

DISCONNECT

LKIA0670E

1.

Control unit with single lever
A. Fasten
B. Loosen
C. Lever

2.

Control unit with dual levers
A. Levers
B. Fasten
C. Loosen

3.

SMJ connector
A. Lever
B. Fasten
C. Loosen

JPCIA0037ZZ