Cause of malfunction | Elimination Method |
The coolant temperature, fuel level or oil pressure indicator in the lubrication system does not work | |
Bad pointer (see control devices) | Replace gauge or instrument cluster |
Faulty sensor (see control devices) | Replace sensor |
Damaged wires, oxidized or loose ends | Crimp terminals, replace faulty wires |
When the tank is full, the needle of the fuel gauge moves to zero (with an incomplete tank, the readings are correct) | |
Current collector of the fuel level sensor goes beyond the resistor winding | Bend the lever of the fuel level sensor |
The fuel gauge needle twitches and often deviates to zero | |
Weak touch of the sensor resistor by the current collector | Bend the Current Collector |
Break in the resistor winding of the fuel level sensor | Replace sensor |
The fuel reserve indicator lamp is constantly on | |
Short circuit of the sensor wire to «mass» | Eliminate the short |
Indicator lamps do not light up | |
Bulb burnt out | Replace lamp |
Poor clamping of the cartridge to the lamp base or contacts of the cartridge to the printed circuit board | Clean the contact surfaces, bend the lamp socket contacts or replace the board |
Corresponding sensor is defective | Replace sensor |
Damaged wires, oxidized or loose ends | Crimp terminals, replace faulty wires |
Speedometer not working | |
The nuts securing the tips of the flexible shaft of the speedometer have turned away | Tighten the nuts by hand |
The tips of the flexible shaft of the speedometer, the reciprocal sockets in the speedometer and in the speed sensor roller are worn out. Weak landing of the thrust ring on the shaft of the speedometer (at the top nut) | Replace Flex Shaft |
Faulty speedometer | Replace speedometer |
Breakage of the flexible shaft of the speedometer | Replace Flex Shaft |
Speedometer flexible shaft noise (As a rule, noise occurs in a certain range of speeds) | |
Mounting of the flexible shaft is made with small bending radii | Re-lay the flexible shaft, lubricate it with engine oil |
Flexible shaft shell deformed | Replace Flex Shaft |
Tachometer not working | |
Damaged instrument cluster power circuits, tachometer control circuit (from the generator), alternator, instrument cluster board tracks | Crimp terminals, replace faulty wires, instrument cluster |
Faulty tachometer | Replace tachometer or instrument cluster assembly |