Nissan Juke Service and Repair Manual : System description

COMPONENT PARTS

Circuit Breaker

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 temperature 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.

Battery


Battery

HR*: Because of the frequent battery charge/discharge performed according to


HR*: Because of the frequent battery charge/discharge performed according to a driving condition and a battery condition, this model uses a charge/discharge capacity-enhanced battery. Therefore, it is recommended to use a genuine battery when replacement is needed.

Harness 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:
Never pull the harness or wires when disconnecting the connector.

[Example]

HARNESS CONNECTOR (SLIDE-LOCKING TYPE)


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 disconnection.

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

CAUTION:
Never pull the harness or wires when disconnecting the connector.

Be careful not to damage the connector support bracket when disconnecting the connector.

[Example]

HARNESS CONNECTOR (LEVER LOCKING TYPE)


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 connection.

CAUTION

:
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.

1. Control unit with single lever


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

Standardized Relay

NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS

Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.

TYPE OF STANDARDIZED RELAYS


TYPE OF STANDARDIZED RELAYS

1M 1 Make 2M 2 Make

1T 1 Transfer 1M1B 1 Make 1 Break


Wiring diagram


    Precaution
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    Diagnosis and repair workflow
    Work Flow OVERALL SEQUENCE DETAILED FLOW 1.INTERVIEW FOR MALFUNCTION Interview the symptom to the customer >> GO TO 2. 2.SYMPTOM CHECK Check the symptom from the customer's information. Check that any symptom occurs other than the interviewed symptom. Insufficient cooling/heat ...

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