Speedometer - Chery automobile Service Manual

System components and functions are as follows:
Name of Component
Combination
instrument
Speed sensor
Water temperature sensor
Fuel sensor
Warning switch for fuel level
The indicator needle of speedometer is moving as

Speedometer

per the signal from speed sensor, indicating the
driving speed of the car.
The indicator needle of tachometer is moving as per
Tachometer the signal from ignition, indicating the engine
rotation speed.
Water The indicator needle of water temperature meter is
temperature moving as per the signal from sensor, indicating the
meter engine coolant temperature.
The indicator needle of fuel meter is moving as per
Fuel meter the signal from sensor, indicating the remaining
fuel quantity in the fuel tank.
The odometer, counting the car's gross traveling
Odometer distance as per the pulse signal from speed sensor,
may switch over within short distance.
The dual short-range odometer, counting the car's
Dual short-range
traveling distance as per the pulse signal from the
Odometer
speed sensor, and may be reset by the switch.
The regulator circuit installed in the power module
Power module is supplying current to various components of the
instruments through fuse S21 10A.
This board is containing the circuitry systems of
various meters and measuring instruments, warning
lamps and indicator lamps, as well as warning
Circuit board
activating circuits for the engine oil level, odometer
and short-range odometer and the circuit system of
various indicator lamps.
Installed in gearbox, this sensor transmits the pulse
signal according to the output shaft rotation speed
to the combination instrument.
This sensor, which converts the engine coolant
temperature into resistance, transmits the relevant
signal to the combination instrument.
This sensor, which converts the residual fuel oil
level in the fuel tank into resistance, transmits the
relevant signal to the combination instrument.
When the fuel level drop down to the preset level,
the level sensor signal activates the circuit in the
fuel meter and switches on the warning lamp.
T-23
Function