Great Wall GW491QE, Руководство по обслуживанию

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EF.1-60
Fault code
：
P0335 Failure with the signal of crankshaft position sensor.
”
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
Pull out the plug of rotating speed sensor from wiring harness, and a
multimeter may be used to verify whether the resistance between Pin 1 and Pin
2 of rotating speed sensor is within
770-950
Ω
when at 20
℃
.
No Change the sensor.
Yes
Repair or change the wiring
harness.
3
Check whether respective loops between the connection Pin 1 &2 of rotating
speed sensor and Pin 15 &34 of ECU are broken loops, or short circuit to
ground or power supply.
No Next step.
Yes Change the sensor.
4
Check whether the installation position of sensor satisfies relevant
requirements, and whether the signal panel of flywheel is intact.
No
Check and repair it based
on diagnosis.
Fault code
：
P0336 The failure is caused by an inappropriate signal of crankshaft position sensor.
”
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
Pull out the plug of rotating speed sensor from wiring harness, and a
multimeter may be used to verify whether the resistance between Pin 1 and Pin
2 of rotating speed sensor is within
770-950
Ω
when at 20
℃
.
No Change the sensor.
Yes
Repair or change the wiring
harness.
3
Check whether respective loops between the connection Pin 1 &2 of rotating
speed sensor and Pin 15 &34 of ECU are broken loops, or short circuit to
ground or power supply.
No Next step.
Yes Change the sensor.
4
Check whether the installation position of sensor satisfies relevant
requirements, and whether the signal panel of flywheel is intact.
No
Check and repair it based
on diagnosis.
Fault code
：
P0340 Failure with the signal of phase sensor.
”
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
Continue to proceed until
step 4.
2
Pull out the plug of phase sensor from wiring harness, and a multimeter may be
used to verify whether the voltage between Pin 1 and Pin 3 of phase sensor is
about 12V.
No Next step.
Yes
Repair or change the wiring
harness.
3
Check whether the loop between the connection pin 1 of phase sensor and Pin
87 of main relay is a broken loop, or short circuit to ground. And check
whether the pin 3 of phase sensor has been well grounded.
No Next step.
Yes
Continue to proceed until
step 6.
4
Check whether the voltage between the connection Pin 2 of phase sensor and
the negative electrode of power supply is about 9.9V.
No Next step.
Yes
Repair or change the wiring
harness.
5
Check whether the loop between the connection pin 2 of phase sensor and Pin
79 of ECU is a broken loop, or short circuit to power supply or ground.
No Next step.
Yes Change the sensor.
6 Check whether the signal panel of camshaft is intact.
No Change the signal panel
Fault code
：
P0443 Failure with the control loop of driving stage for carbon-canister control valve.
”
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
Continue to proceed until
step 4.
2
Pull out the plug of carbon-canister control valve from wiring harness, and a
multimeter may be used to verify the voltage between Pin 1 of the plug and the
negative electrode of power supply is about 12V.
No Next step.
Yes
Repair or change the wiring
harness.
3
Check whether the loop (on power supply end) of carbon-canister control valve
is a broken circuit or short circuit to ground.
No
Continue to proceed until
step 2.
M7.9.7 system service &diagnosis flow process based on fault code
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