Nissan Sentra Service Manual: Commercial Service Tools
Special Service Tools
The actual shape of the tools may differ from those illustrated here.
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Symptom diagnosis
Noise, vibration and harshness (NVH) troubleshooting
NVH troubleshooting chart
Locate the area where noise occurs.
Confirm the type of noise.
Specify the operating condition of engine.
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Other materials:
P1225 TP Sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1225
CTP LEARNING-B1
(Closed throttle position
learning bank 1)
Closed throttle position learning value is excessively
low.
E ...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW CUSTOMER
Interview the customer to obtain as much information as possible about the
conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.SYMPTOM CHECK
Verify symptoms.
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M&a branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the combination meter for damage,
bend and loose connection
(unit side and connector side).
Is the inspection result nor ...
