Nissan Sentra Service Manual: Component parts
Component Parts Location
- IPDM E/R, (Headlamp high relay, Headlamp low relay, Taillamp relay and Front fog lamp relay (if equipped))
- Stop lamp switch
- Parking brake switch
- Combination meter
- Combination switch (lighting and turn signal switch)
- BCM (view with combination meter removed)
- Optical sensor
- Front door switch LH (Other doors similar)
- Hazard switch
- Daytime light relay (if equipped)
Component Description
| Part | Description |
| BCM | Controls the exterior lighting system. |
| Combination switch (Lighting & turn signal switch) | Refer to BCS-9, "COMBINATION SWITCH READING SYSTEM : System Description" (with Intelligent Key system) or BCS-80, "COMBINATION SWITCH READING SYSTEM : System Description" (without Intelligent Key system). |
| IPDM E/R | Controls the integrated relays and supplies voltage to the load according to the request from the BCM via CAN communication. |
| Stop lamp switch | Transmits power when the brake pedal is pressed to operate stop lamps. |
| Combination meter | Refer to MWI-8, "METER SYSTEM : System Description". |
| Daytime light relay (if equipped) | Sends power to the daytime lamp when operated by the IPDM E/R. |
| Front door switch LH/RH | Transmits the door open signal to the BCM. |
| Rear door switch LH/RH | |
| Optical sensor | Optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to BCM to operate the autolight system. |
| Parking brake switch | Transmits the parking brake switch signal to the combination meter to operate the autolight system. |
| Hazard switch | Inputs the hazard switch signal to BCM. |
System
Headlamp system
HEADLAMP SYSTEM : System Diagram
HEADLAMP SYSTEM : System Description
LOW BEAM OPERATION
When the lighting switch is in 2nd position, the BCM receives input
requesting the h ...
Other materials:
System description
Component parts
Component parts location
Instrument lower finisher
Eco mode switch
The eco mode switch is installed to the instrument lower finisher.
When the ECO mode indicator lamp on the combination meter is
OFF and the ECO mode switch is pressed, the ECO mode is
active and ...
Dtc/circuit diagnosis
Sport mode switch
Component function check
1. Check sport mode switch operation
Turn ignition switch on.
Check sport mode indicator lamp turns on/off on combination meter when
turn sport mode switch
on/off.
Is the inspection result normal?
Yes >> inspection end.
No >> ...
Cooling fan control
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant
temperature, refrigerant pressure,
air conditioner ON signal. Then control system has 3-step control
[HIGH/LOW/OFF].
Cooling Fan Operation
Cooling Fan Relay Operation
Whe ...
