Great Wall GW491QE, Руководство по обслуживанию

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EF.2-25
Methods฀for฀failure฀diagnosis฀/fault฀code฀to฀spare฀parts
(b) Fault code checklist for MT20U fault code reader
Fault
code
Description of failure
Fault
code
Description of failure
Fault
code
Description of failure
The pressure of inlet manifold too
high
K nock sensor has no
signal.
The voltage of accumulator is too high.
The pressure of inlet manifold too
low
58x crankshaft sensor
has no signal.
The knock control system has an error.
The temperature of inlet manifold
too high
58x crankshaft sensor
signal has an error.
The fault indicator light is short circuit to
accumulator.
The temperature of inlet manifold
too low
Camshaft sensor signal
is long and low.
The fault indicator light is short circuit to ground or
in an open circuit.
Coolant temperature too low short
/broken circuit with accumulator
Camshaft sensor signal
is long and high.
The air conditioner relay is short circuit to
accumulator.
Coolant temperature too high short
circuit to ground
Line diagram 1-4 is
short circuit to
accumulator.
The air conditioner relay is short circuit to ground or
in an open circuit..
Throttle position too high short
/broken circuit with accumulator
Line diagram 1-4 is
short circuit to ground
or in an open circuit.
EEPROM memory has an error.
Throttle position too low short
circuit to ground
Line diagram 2-3 is
short circuit to
accumulator.
FLASH memory has an error.
Oxygen sensor has no signal Line diagram 2-3 is
short circuit to ground
or in an open circuit.
The theft-prevention controller memory has an
error.
The ‘ thick’ time of oxygen sensor is
too long.
The carbon-canister
solenoid valve is short
circuit to accumulator.
The communication between ECM and theft
detector has an error.
The ‘thin’ time of oxygen sensor is
too long.
The carbon-canister
solenoid valve is short
circuit to ground or in
an open circuit.
The temperature of front evaporator is too high.
The loop of fuel injector A cylinder
1 has
an error.
Fan 1 is short circuit to
accumulator. The temperature of front evaporator is too low.
The loop of fuel injector B cylinder
3 has
an error.
Fan 1 is short circuit to
ground or in an open
circuit.
The temperature of rear evaporator is too high.
The loop of fuel injector C cylinder
4 has
an error.
Fan 2 is short circuit to
accumulator. The temperature of rear evaporator is too low.
The loop of fuel injector D cylinder
2 has an error.
Fan 2 is short circuit to
ground or in an open
circuit.
The air conditioner after-cycle trip valve
is short circuit to accumulator.
The fuel pump relay is short circuit
to accumulator.
The vehicle speed
sensor has no signal.
The air conditioner after-cycle trip valve
is short circuit to ground or in an open circuit.
The fuel pump relay is short circuit
to ground or in an open circuit.
Error idle-speed
control
Explanatory฀note
1.฀As฀code฀reader฀is฀able฀to฀read฀out฀any฀history฀fault฀code฀stored฀yet฀not฀being฀cleared฀inside฀the
computer,฀codes฀read฀out฀by฀code฀reader฀shall฀be฀valid฀only฀when฀any฀failure฀is฀indicated฀by฀fault
indicator฀light.
2.฀The฀display฀of฀ ———— on฀code฀reader฀indicates฀the฀system฀is฀working฀normally;฀and฀the
฀฀฀฀display฀of E indicates฀the฀key฀switch฀has฀not฀been฀opened฀yet.
3.฀It’s฀recommended฀to฀clear฀away฀any฀fault฀code฀at฀service฀station฀after฀failure฀has฀been฀solved฀each
฀฀฀฀time.
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