LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Nissan-Datsun
>>
2012
>>
Sentra SE-R
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System - DTCS P0171 To P0507 (Qr25DE)
>>
DTC P0506: ISC System
>>
On Board Diagnosis Logic
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
On Board Diagnosis Logic
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0506
0506
Idle speed control system RPM lower than expected
The idle speed is less than the target idle speed by 100 rpm or more.
Electric throttle control actuator
Intake air leak