Nissan Sentra Service Manual: Normal operating condition
Compass
Compass : description
Compass
- The electronic compass is highly protected from changes in most magnetic
fields. However, some large
changes in magnetic fields can affect it. Some examples are (but not limited
to): high tension power lines,
large steel buildings, subways, steel bridges, automatic car washes, large
piles of scrap metal, etc. While
this does not happen very often, it is possible.
- During normal operation, the compass mirror will continuously update the
compass calibration to adjust for
gradual changes in the vehicle's magnetic "remnant" field. If the vehicle is
subjected to high magnetic influences,
the compass may appear to indicate false headings, become locked, or appear
that it is unable to be
calibrated. If this occurs, perform the calibration procedure.
- If at any time the compass continually displays the incorrect direction
or the reading is erratic or locked, verify
the correct zone variance.
Symptom chart

Description
The low washer fluid warning lamp is still illuminated even after washer
fluid is added.
The low washer fluid warning lamp is not illuminated even though the
washer tank is emp ...
Combination meter
Exploded view
Combination meter
Front cover
Removal and installation
Removal
Remove cluster lid a. Refer to ip-19, "removal and installation".
Remove ...
Other materials:
Idle air volume learning
Description
Idle Air Volume Learning is a function of ECM to learn the idle air volume
that keeps each engine idle speed
within the specific range. It must be performed under any of the following
conditions:
Each time electric throttle control actuator or ECM is replaced.
Idle speed or i ...
P0300, P0301, P0302, P0303, P0304 Misfire
DTC Logic
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
Sensor
Input signal to ECM
ECM function
...
Daytime light relay circuit
Description
The bcm sends a daytime light request to the ipdm e/r via the can
communication lines. The power flows
through fuse 29 located in fuse block j/b to the daytime light relay coil. When
the ipdm e/r operates the daytime
light relay, power is sent to the daytime lamps.
Diagnosis proc ...
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