Chery automobile Service Manual page 133

DETAILED TABLE OF DIAGNOSTIC TROUBLE CODES
Diagnostic trouble code: P0107 "Undervoltage in circuit of air intake pressure
sensor"
Item
Operation procedure
No.
Connect the diagnostic tester and adaptor,
1 and turn the ignition switch to "ON"
position.
Observe the "air intake pressure" in data
flow and verify that it is maintained at
2
101kPa (the exact value is determined by
the atmospheric pressure at that time).
Disconnect the connector of the air intake
pressure sensor on the wiring harness and
3
inspect with multimeter to verify that the
voltage between the 3# and 1# pins of the
connector is about 5V.
Verify that the circuits between the 17#,
33# and 37# pins of ECU and the 1#, 3#,
4
and 4# pins of the sensor connector are
short to ground.
Start up the engine, run at idle speed. Step
on the accelerator pedal slowly until the
nearly full opening, observe the "air intake
pressure" displayed on the diagnostic
5 tester and verify that the value is stable
without significant change; if step on the
accelerator pedal quickly until nearly full
opening, whether the value exceeds 90kPa
instantaneously.
Start up the engine, run at idle speed.
Observe
temperature" on the diagnostic tester to
6
verify that the indicated value is increased
along with the temperature increase of the
engine coolant.
the value of
G-24
Inspection
results
Yes
No
Yes
No
Yes
No
Yes
No
Yes
"Coolant
No
Follow-up
procedure
Proceed to next
step.
Proceed to Step 5
Proceed to next
step.
Proceed to Step 5
Proceed to next
step.
Repair or replace
the wiring
harness.
Proceed to next
step.
Refer to diagnosis
help.
Replace the
sensor.
Refer to diagnosis
help.
Replace the
sensor.