Nissan Sentra Service Manual: 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.

- Control unit with single lever
- Fasten
- Loosen
- Lever
- Control unit with dual lever
- Lever
- Fasten
- Loosen
- Smj connector
- Lever
- Fasten
- Loosen
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 after installing connector to
srs components.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.

Electrical units location
Engine compartment
Passenger compartment
Luggage compartment
...
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:
Audible reminders
Brake pad wear warning
The disc brake pads have audible wear warnings.
When a disc brake pad requires replacement, it
makes a high pitched scraping sound when the
vehicle is in motion, whether or not the brake
pedal is depressed. Have the brakes checked as
soon as possible if the warning sou ...
Unbalance steering wheel turning force (torque variation)
Description
Unbalance steering wheel turning force (torque variation).
Diagnosis Procedure
1.PERFORM SELF-DIAGNOSIS
With CONSULT
Turn the ignition switch OFF to ON.
Perform EPS self-diagnosis.
Is any DTC detected?
YES >> Check the DTC. Refer to STC-14, "DTC Index&quo ...
Headlamp (hi) circuit
Description
The IPDM E/R (intelligent power distribution module engine room) controls the
headlamp high relay based on
inputs from the BCM over the CAN communication lines. When the headlamp high
relay is energized, power
flows through fuses 41 and 42, located in the IPDM E/R. Power then flo ...
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