Nissan Sentra Service Manual: Basic inspection
Diagnosis and repair work flow
Work flow
Detailed flow
1.Obtain information about symptom
Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurs.
>> GO TO 2.
2.Check symptom
- Check the symptom based on the information obtained from the customer.
- Check if any other malfunctions are present.
>> Go to 3.
3.Dtc/system diganosis
Perform a dtc/system diagnosis and repair or replace any malfunctioning part.
>> Go to 4.
4.Final check
Check that the ECO mode functions normally.
Does it operation normally? YES >> End of trouble diagnosis NO >> GO TO 2.
Wiring diagram
Eco mode system
Wiring diagram
...
Dtc/circuit diagnosis
Eco mode switch
Component function check
1. Check eco mode switch operation
Turn ignition switch ON.
Check ECO mode indicator lamp turns ON/OFF on combination meter when
turn ECO mode swit ...
Other materials:
P050A, P050B, P050E Cold start control
Description
ECM controls ignition timing and engine idle speed when engine is started
with pre-warming up condition.
This control promotes the activation of three way catalyst by heating the
catalyst and reduces emissions.
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P050A, P050B or P050E ...
Wheel alignment
Inspection
DESCRIPTION
Measure the wheel alignment under unladen conditions.
NOTE:
“Unladen conditions” means that fuel, engine coolant, and lubricants are
full. Spare tire, jack, hand tools and
mats are in designated positions.
PRELIMINARY
Check the following:
Tires for impro ...
Service
Never use electrical test equipment to check SRS circuits unless
instructed to in this Service Manual.
Before servicing the SRS, turn power switch OFF, disconnect battery
negative terminal and wait 3 minutes
or more.
For approximately 3 minutes after the cables are removed, it is stil ...
