Troubleshooting Brake Indicator
When the ignition is turned on, the brake system indicator flashes to check the operation, when the engine is running, it should go out, if it flashes for a longer time or flashes while driving, the brake fluid level should be checked immediately. Perhaps there was a depressurization, and the failure of one brake circuit, which can be seen from the increased free play of the pedal.
Indicator check: see text «Checking the indicator» In chapter «Troubleshooting the coolant indicator».
If the indicator flashes while the engine is running, despite the fact that the level of brake fluid in the reservoir is above the mark «min», try disconnecting the plug from the brake fluid reservoir level sensor.
If the light goes out, then the sensor in the tank is faulty - replace the tank.
Location of hydraulic switches:
Left: On a 4-cylinder engine, a hydraulically actuated 0.3 bar switch is located on top of the oil filter flange (1) here, instead of a switch, a switch and a sensor are installed together). On the bottom of the oil filter flange is a 1.8 bar hydraulically actuated switch (2).
Right: 0.3 bar hydraulically actuated switches in 5-cylinder engine (1) and 1.8 bar (2) located on the left side of the engine.
In this plug connection (arrow), located at the rear of the left cylinder head, contains all the wires to the oil temperature sensor, oil pressure sensor and both hydraulic switches.
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