Location of sensors of control devices: 1 - vehicle speed sensor; 2 – a combination of devices; 3 – the switch of a control lamp of a parking brake; 4 – the switch of a control lamp of not fastened seat belt; 5 - sensor of the fuel level indicator and fuel reserve control lamp; 6 - door limit switches; 7 - brake fluid level sensor; 8 - oil pressure sensor; 9 - coolant temperature sensor
Instrument cluster
Removal and installation
Disconnect the wire from the negative terminal («–») battery.
Remove the instrument cluster frame by unscrewing the fastening screw.
Screws of fastening of a combination of devices
Remove the instrument cluster from its socket by unscrewing the four mounting screws.
Instrument cluster connectors
Separate contact sockets of a combination of devices.
Installation is carried out in the reverse order of removal.
Checking the technical condition
Speedometer
Checking the correctness of the speedometer readings should be carried out on a special stand in the conditions of a car service station.
When the tires are worn out or the pressure in them deviates from the norm, the error of the speedometer increases.
Speedometer error
Speed, km/h | Tolerance, km/h |
120 | 123,5-129,6 |
140 | 144,4-151,0 |
160 | 165,4-172,4 |
180 | 186,3-193,8 |
200 | 207,2-215,2 |
20 | 20,0-24,6 |
40 | 40,0-44,0 |
60 | 60,8-65,4 |
80 | 81,4-86,8 |
100 | 102,5-108,2 |
Tachometer
Install and connect the control tachometer in accordance with the operating instructions.
Attention!
- Reversing polarity when connecting a tachometer can damage its transistor and diodes.
- When removing and installing the tachometer, try not to drop it and protect it from strong impacts.
With the engine running, compare the readings of the control tachometer with the readings of the standard tachometer. If the measurement tolerance limits are exceeded, replace the tachometer.
Tachometer error
Engine crankshaft speed, min-1 | 1000 | 2000 | 3000 | 4000 | 5000 | 6000 | 7000 |
Tolerance, min-1 | ±100 | ±125 | ±150 | ±150 | ±150 | ±180 | ±210 |
Fuel gauge
To test operation, disconnect the fuel level sensor connector.
Connect a test lamp with a power of 3.4 W and an operating voltage of 12 V to the contacts «2» And «3» cable part of the fuel level sensor connector.
Switch on the ignition and check that the control lamp lights up and the fuel gauge needle moves to the position «F» (full tank).
Fuel level sensor
Check the resistance between the contacts with an ohmmeter «2» And «3» sensor at each float position («E» – empty tank; «1/2» - half a tank; «F» - full tank).
Check the smoothness of the change in resistance when moving the float from the position «E» to the position «F».
Resistance between terminals of the fuel level sensor
float position | F (full tank) | 1/2 | E (empty tank) |
Resistance, Ohm | 4,0 | 32,5 | 110 |
Fuel reserve sensor
Connect test lamp (operating voltage 12 V and power 3.4 W) and the battery in series to the sensor terminals. Submerge the sensor in water.
When the thermistor is immersed in water, the control lamp of the indicator should not burn, when taken out of the water it should burn.
Note. If defective, replace fuel level sensor assembly.
Attention! After completing this check, wipe the sensor dry and install it in the fuel tank.
Coolant temperature gauge
In the engine compartment, disconnect the connector from the coolant temperature sensor.
Turn the ignition on and check that the coolant temperature gauge needle is in the «cold».
Switch off the ignition.
Connect test lamp (operating voltage 12 V and power 3.4 W) to the contact of the cable part of the sensor connector and to «mass».
Turn on the ignition. The control lamp should be on, and the pointer should be in the position «hot».
If the test result does not match the above, replace the temperature gauge, then check the system again.
Coolant temperature sensor
Check the resistance between the contacts with an ohmmeter «2» sensor and «weight».
If the resistance is not as specified in the table, replace the sensor.
Resistance between the contact of the coolant temperature sensor and «weight» at different temperatures
Temperature,°С | 60 | 85 | 110 | 125 |
Resistance, Ohm | 118 | 49,0 | 25,0 | 14,6 |
Oil pressure sensor
With the engine off, check for continuity between the oil pressure sensor terminal and «weight».
With the engine running, check that there is no continuity between the sensor terminal and «weight».
If the test result does not match the above, replace the sensor.
Oil pressure warning lamp
Disconnect the connector from the oil pressure sensor and connect the sensor wire pin to «weight».
Turn on the ignition and check that the control lamp lights up. If the lamp does not light, check the lamp and wires.
Brake fluid level sensor
Disconnect the sensor connector located on the brake fluid reservoir.
Pressing down on the sensor (float) any rod, make sure there is a chain between the contacts «1» And «2» sensor.
Brake fluid level warning lamp
Start the engine. Release the parking brake.
Disconnect the brake fluid level sensor connector.
Connect the pins of the cable part of the sensor connector to «weight».
Make sure the control lamp lights up.
The switch of a control lamp of lay brake system
Push type parking brake warning light switch (limit switch) located under the parking brake lever. To adjust the position of the switch, it is necessary to move the switch bracket up or down with the parking brake system drive lever set to the lowest position.
Check for continuity between the terminal and the switch body when the switch contacts are closed (with the upper position of the parking brake lever).
Make sure that there is no circuit between the terminal and the body of the switch when opening the contacts of the switch (when the parking brake lever is lowered).
If the test results do not match the above, replace the switch or check its connection to «weight».
The switch of a control lamp of not fastened seat belt
Disconnect the switch connector.
Check for continuity between switch contacts.
When the seat belt is fastened, the resistance should be equal to infinity.
With the seat belt unfastened, the resistance should be zero.
Seat belt warning lamp
With the ignition on, check the operation of the control lamp.
When the seat belt is fastened, the control lamp should not light up.
When the seat belt is not fastened, the control lamp should be on.