Nissan Altima 2007-2012 Service Manual: Electrical units location

Electrical Units Location

ENGINE COMPARTMENT

PASSENGER COMPARTMENT

LUGGAGE COMPARTMENT

HARNESS CONNECTOR

Description

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.

Refer to the next page for description of the slide-locking type connector.

CAUTION: Do not pull the harness or wires when disconnecting the connector.

[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 disconnection.

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

CAUTION: • Do not 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)

• 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

A. Fasten

B.Loosen

C.Lever

2. Control unit with dual lever

A. Fasten

B.Loosen

C.Lever

3. SMJ connector

A. Fasten

B.Loosen

C.Lever

HARNESS CONNECTOR (DIRECT-CONNECT SRS COMPONENT TYPE)

• SRS direct-connect type harness connectors are used on certain SRS components such as air bag modules and seat belt pre-tensioners.

• Always pull up to release black locking tab prior to removing connector from SRS components.

• Always push down to lock black locking tab afte4r installing connector to SRS components.n When locked, the black locking tab is level with the connector housing.

CAUTION: • Do not pull the harness or wires when removing connectors from SRS components.

    Ground
    Ground Distribution MAIN HARNESS ENGINE ROOM HARNESS FRONT END MODULE HARNESS ENGINE CONTROL HARNESS BODY HARNESS BODY NO. 2 HARNESS HARNESS Harness Layout HOW TO READ HARNES ...

    Standardized relay
    Description 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 ...

    Other materials:

    Magnet clutch
    Description SYSTEM DESCRIPTION Front air control controls A/C compressor operation by ambient temperature and signal from ECM. Low Temperature Protection Control Front air control will turn the A/C compressor ON or OFF as determined by a signal detected by ambient sensor. When ambient te ...

    Additional service when replacing control unit
    Description When replacing ECM, this procedure must be performed. Special Repair Requirement 1.PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS Refer to SEC-15, "ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement" (Coupe) or SEC- 214, &qu ...

    Remote Engine Start (if so equipped)
    The button will be on the NISSAN Intelligent Key® if the vehicle has remote engine start. This feature allows the engine to start from outside the vehicle. The following features may be affected when the remote start feature is used: ● Vehicles with a manual climate control sys ...