Chery automobile Service Manual page 470

Malfunction
Components
symptoms
The speedometer
speedometer does not
does not function or
function or there is a large
have an error between
excessive the indicated
error. speed and the
actual speed.
The indicator
needle of
The water water
temperature temperature
meter does meter does
not function. not function
after engine
starting.
Malfunction
reasons
(1) The
Speed Sensor of
speedometer.
(2) The indicator
needle
speedometer
jammed.
The (3) Output shaft
driving gear of
gearbox
seriously
out or the gear's
engagement
clearance
excessive.
(4)
speedometer
damaged.
(5) The engine is
damaged.
(6)
connecting circuit
is faulty.
(1) The
temperature meter
is damaged.
(2) The
temperature
sensor
ineffective.
(3) The circuit of
water temperature
meter is open.
(4) The voltage
regulator
damaged.
(5) The ECU is
damaged.
T-30
Malfunction diagnosis
and troubleshooting
Hall
(1) If the speedometer does
not function, firstly inspect
the engagement of Hall
of
Speed Sensor and the drive
is
gear to verify that there is
any malfunction.
everything is normal, then
remove and inspect the
is
speedometer.
worn
(2) In the case of only
inaccurate
malfunction, it is caused
is
usually by the damage of
the interior part of the
The
meter.
is
(3) Inspect
between the speed signal
and the ECU, and the
signal wire between engine
The
and instrument.
water (1) Open the engine bonnet
and pull out the connector
of the water temperature
water sensor. Inspect whether the
resistance
is temperature
normal; if it is normal,
inspect the signal from
sensor to the ECU, and
signal from the ECU to
instrument.
is (2) If the above circuits are
normal, connect it to the
connector of combination
instrument and turn on the
ignition switch. Inspect to
see whether
appears at the yellow/red
wires of water temperature
sensor connector.
voltage appears,
indicates that the water
temperature
damaged; if there is no
voltage, it indicates that
Remarks
If
indication
the link
of water
sensor is
voltage
If
it
sensor is