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:
C1130 Engine signal
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1130
ENGINE SIGNAL 1
When a malfunction is detected in ECM system.
ECM
ABS actuator and electric unit
(control unit)
CAN communication line
...
Precaution for work
When removing or disassembling each component, be careful not to damage
or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
When removing (disengaging) components with a screwdriver or similar
tool, be sure to wrap the component
with a ...
Anti-lock Braking System (ABS)
WARNING
The Anti-lock Braking System (ABS) is a
sophisticated device, but it cannot prevent
accidents resulting from careless
or dangerous driving techniques. It can
help maintain vehicle control during
braking on slippery surfaces. Remember
that stopping distances ...
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