Chery automobile Service Manual page 158

Diagnostic trouble code: P0506 "Idle speed lower than nominal idle speed"
Item
Operation procedure
No.
Connect the diagnostic tester and adaptor,
1 and turn the ignition switch to "OFF"
position.
Verify that the adjusting screw of throttle,
2 accelerator
condition of throttle are in good condition.
Verify that the working condition of idle
3
speed regulator is correct.
A. Verify that there is under pressure in the
fuel supplying system;
B. Verify that there is blockage in the fuel
4
injector;
C. Verify that there is blockage in the
exhaust system.
pedal stay and
G-49
Inspection
results
Yes
working
No
Yes
No
Yes
No
Follow-up
procedure
Proceed to next
step.
Proceed to next
step.
Carry out
necessary
Overhaul.
Proceed to next
step.
Carry out
necessary
Overhaul.
Carry out
necessary
Overhaul.
Refer to diagnosis
help.