Great Wall GW491QE, Руководство по обслуживанию

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EF.1-55
Fault code
：
P0122 The signal voltage in the loop of throttle position sensor is too low.
”
S.N. Operation steps
Check
result
Follow-up steps
1 Connect with the diagnosis instrument, and place the ignition switch to the ON
”
position. Next step.
Yes Next step.
2
Observe whether the value of item absolute opening degree of throttle valve
”
in data stream
is within 4%-10%.
No Continue to proceed until step 5.
Yes Next step.
3
Step on the gas slowly until it’s full opened, and observe whether the value of item absolute
opening degree of throttle valve
”
in data stream is increased to a degree of 85%-95% when the
opening degree of throttle valve is being increased.
No Continue to proceed until step 5.
Yes Change the sensor.
4
Repeat step 3 to observe the item absolute opening degree of throttle valve
”
in data stream,
and whether any abrupt change exists during the change of value.
No Next step.
Yes
Repair or change the wiring
harness. 5
Pull out the plug of throttle valve sensor from wiring harness, and check whether respective
loops between Pin 32/17/16 of ECU and the connection Pin 1/2/3 of sensor are broken loops,
or short circuit to ground. No Next step.
Yes Diagnosis help.
6
A multimeter may be used to check whether the voltage between Pin 1 and Pin 2 of the plug is
about 5V.
No Continue to proceed until step 5.
Fault code
：
P0123 The signal voltage in the loop of throttle position sensor is too high
”
S.N. Operation steps
Check
result
Follow-up steps
1 Connect with the diagnosis instrument, and place the ignition switch to the ON
”
position. Next step.
Yes Next step.
2
Observe whether the value of item absolute opening degree of throttle valve
”
in data stream is
within 4%-10%.
No Continue to proceed until step 5.
Yes Next step.
3
Step on the gas slowly until it’s full opened, and observe whether the value of item absolute
opening degree of throttle valve
”
in data stream is increased to a degree of 85%-95% when the
opening degree of throttle valve is being increased.
No
Continue to proceed until step 5.
Yes Change the sensor.
4
Repeat step 3 to observe the item absolute opening degree of throttle valve
”
in data stream,
and whether any abrupt change exists during the change of value.
No Next step.
Yes
Repair or change the wiring
harness. 5
Pull out the plug of throttle valve sensor from wiring harness, and check whether respective
loops between Pin 32/17/16 of ECU and the connection Pin 1/2/3 of sensor are broken loops,
or short circuit to ground. No Next step.
Yes Diagnosis help.
6
A multimeter may be used to check whether the voltage between Pin 1 and Pin 2 of the plug is
about 5V.
No Continue to proceed until step 5.
Fault code
：
P0130“Failure caused by inappropriate signal for upstream sensor”
Note: The diagnosis flow process below is applicable to cases excluding that P0135 is not produced simultaneously; if P0135 is
produced simultaneously, you need to settle the failure with P0135 first before performing a check and repair as per the flow process
below.
S.N. Operation steps
Check
result
Follow-up steps
1 Connect with the diagnosis instrument, and place the ignition switch to the ON
”
position. Next step.
Yes Diagnosis help.
2
Start the engine and have it running at idle-speed until the cooling-fluid temperature reaches its
normal value. Observe the change of value at the item oxygen sensor voltage
”
on diagnosis
instrument, and whether the displayed value makes a rapid change within 100mV~900mV.
No Next step.
Yes
Repair or change the wiring
harness. 3
Check whether respective loops between Pin 36 &18 of ECU and the connection Pin A
(corresponding to the grey connection line of oxygen sensor) and B(corresponding to the black
connection line of oxygen sensor) of sensor are broken loops. No Change the sensor.
M7.9.7 system service &diagnosis flow process based on fault code
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