Nissan Sentra Service Manual: Control Units and Electrical Parts
PRECAUTIONS
- Never reverse polarity of battery terminals.
- Install only parts specified for a vehicle.
- Before replacing the control unit, check the input and output and functions of the component parts.
- Do not apply excessive force when disconnecting a connector.
- Do not apply excessive shock to the control unit by dropping or hitting it.
- Be careful to prevent condensation in the control unit due to rapid temperature changes and do not let water or rain get on it. If water is found in the control unit, dry it fully and then install it in the vehicle.
- Be careful not to let oil to get on the control unit connector.
- Avoid cleaning the control unit with volatile oil.
- Do not disassemble the control unit, and do not remove the upper and lower covers.
- When using a DMM, be careful not to let test probes get close to each other to prevent the power transistor in the control unit from damaging battery voltage because of short circuiting.
- When checking input and output signals of the control unit, use the specified check adapter.
Work Flow
STEP
DESCRIPTION
STEP 1
Get detailed information about the conditions and the
environment when the incident occurred.
The following are key pieces of information requi ...
How to Check Terminal
CONNECTOR AND TERMINAL PIN KIT
Use the connector and terminal pin kits listed below when replacing
connectors or terminals.
The connector and terminal pin kits contain some of the most common ...
Other materials:
Accelerator pedal released position
learning
Description
Accelerator Pedal Released Position Learning is a function of ECM to learn
the fully released position of the
accelerator pedal by monitoring the accelerator pedal position sensor output
signal. It must be performed each
time harness connector of accelerator pedal position sensor ...
Air fresheners
Most air fresheners use a solvent that could affect
the vehicle interior. If you use an air freshener,
take the following precautions:
Hanging-type air fresheners can cause permanent
discoloration when they contact vehicle
interior surfaces. Place the air freshener
in a location that all ...
Dtc/circuit diagnosis
U1000 can comm circuit
DTC Logic
Dtc detection logic
Consult display
Dtc detection condition
Possible cause
Can comm circuit
[u1000]
Av control unit is not transmitting or receiving
can communication signal for 2 seconds or
more.
CAN communication system.
...
