Nissan Sentra B18 (2020-2025) Service Manual: Corrosion Protection
Description
To provide improved corrosion prevention, the following anti-corrosive measures have been implemented in NISSAN production plants. When repairing or replacing body panels, it is necessary to use the same anti-corrosive measures.
Anti-Corrosive Precoated Steel (Galvannealed Steel)
To improve repairability and corrosion resistance, a new type of anti-corrosive precoated steel sheet has been adopted, replacing conventional zinc-coated steel sheet.
Galvannealed steel is electroplated and heated to form zinc-iron alloy, which provides excellent and long term corrosion resistance with cationic electrodeposition primer.
NISSAN Genuine Service Parts are fabricated from galvannealed steel. Therefore, it is recommended that GENUINE NISSAN PARTS or equivalent be used for panel replacement to maintain the anti-corrosive performance built into the Nissan Sentra vehicle at the factory.
Phosphate Coating Treatment and Cationic Electrodeposition Primer
A phosphate coating treatment and a cationic electrodeposition primer, which provide excellent corrosion protection, are employed on all body components.
CAUTION:
Confine paint removal during welding operations to an absolute minimum.
NISSAN Genuine Service Parts are also treated in the same manner. Therefore, it is recommended that GENUINE NISSAN PARTS or equivalent be used for panel replacement to maintain anti-corrosive performance built into the Nissan Sentra vehicle at the factory.
Anti-Corrosive Wax
To improve corrosion resistance, anti-corrosive wax is applied inside the body sill and inside other closed sections. Accordingly, when replacing these parts, be sure to apply anti-corrosive wax to the appropriate areas of the new parts. Select an excellent anti-corrosive wax which will penetrate after application and has a long shelf life.
|
1. |
Anti-corrosive wax |
2. |
Body caulk |
3. |
Panel adhesive |
Undercoating
The underside of the floor and wheelhouse are undercoated to prevent rust, vibration, noise and stone chipping. Therefore, when such a panel is replaced or repaired, apply undercoating to that part. Use an undercoating which is rust preventive, soundproof, vibration-proof, shock-resistant, adhesive, and durable.
Precautions in Undercoating
Never apply undercoating unless specified. Avoid areas such as the areas above the muffler and three-way catalyst which are subjected to heat.
Never undercoat the exhaust pipe or other parts which become hot.
Never undercoat rotating parts.
Apply
cavity wax after applying undercoating. 
|
Undercoated areas are shaded. |
Body Sealing
Description
Description
The following figure shows the areas which are
sealed at the factory. Sealant which has been applied to these
areas should be smooth and free from cuts or gaps. Ca ...
Other materials:
Head Lamp
Consult Function (bcm - Head Lamp)
CONSULT Function
(BCM - HEAD LAMP)
DATA MONITOR
Note:
The following table includes information (items)
inapplicable to this Nissan Sentra vehicle. For information (items) applicable to
this vehicle, refer to CONSULT display items.
...
Body side trim
Exploded View
Rear body side welt
Front body side welt
Tether clip
Front pillar finisher
Metal clip
Dash clip
Dash side finisher
Harness protector
Front kicking plate inner
Center pillar lower finisher
Rear kicking plate inner
Cap
Center pillar upper finisher
Rear p ...
Air conditioning cut control
AIR CONDITIONING CUT CONTROL : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed*
Piston position
Air conditioner
cut control
IPDM E/R
↓Air ...
