The Steps For Implementation Of Failure Diagnosis According To Failure Information Records; Electronic Throttle Failure - Chery QQ6 Service Manual

11. The Steps for Implementation of Failure Diagnosis According to
Failure Information Records

11.1 Electronic Throttle Failure

Failure codes: P012, P0122, P0123 , P022, P0222, P0223, P1336, P154, P1558, P1559, P1564,
P1565, P1568, P1579, P1604
No.
Put the ignition switch to "ON".
1
2 Pull out the joint of throttle position sensor on
harness; use a multimeter to check if the
magnitude of voltage between its 3# and 5# pins
is around 12V and if a 5V voltage is present
between 6# and 2# pins.
3 Use a multimeter to check if the resistance
values between 1#, 4# and 6# pins of the sensor
are between 0.5kΩ and 1.6kΩ.
4 Meanwhile, use a multimeter to check if it is
break or short circuit between 1#, 4# and 6#
pins of throttle position sensor and ECU38#,
54#, 36#; or, turn blade of the throttle to observe
if its resistance value jumps and if the resistance
values between 1#, 4# and 6# change
accordingly with rotation of throttle.
5 Connect an adaptor between ECU and harness,
use a multimeter respectively check if it is break
or short circuit between 1#, 2#, 6# and 4# pins
of the sensor and 10#, 32#, 36# and 54# pins of
ECU joint.
Note: This auto adopts the electronic throttle body and has cancelled former step motor,
and the functions that were accomplished by the stop motor on a common throttle body
are now completely accomplished by the throttle driving motor. The electronic throttle
can not be repaired and failure rate of the throttle body is very low, if damaged,
replacing the assembly is the only choice to deal with the problem.
Special attention: The electronic throttle body can not be disassembled and repaired at
service station; in addition, after replacing electronic throttle body, be sure to let it carry
out self-study; otherwise, unsteady working at idle speed of engine may occur. See also
the section about electronic throttle for detailed study scheme. Maintenance of the
throttle body is analogous to that of the common valve body.
Operating steps Result Follow up steps
Next step
Yes Next step
No 5
Yes Next step
No Replace the sensor
Yes Replace the sensor
No Replace ECU
Yes Repair or replace
wire harness
No Replace ECU