900 L4-1985cc 2.0L SOHC Turbo VIN S FI (1984)
If the fluid in the brake fluid reservoir should drop to an inadmissibly low level, the switch will close and the warning lamp will light up.
Lamp test
When the engine is started by the ignition switch being turned to the start position, a positive voltage is supplied from terminal 50 of ignition switch
20. The current flows through the diode, thus lighting the lamp. The diodes prevent the current from flowing back.
On cars with automatic transmission, the current also flows through start inhibitor switch 77.
Fault-tracing hints
The brake fluid level warning lamp will be operative when the ignition switch is in the drive position.
1. Check the brake fluid level warning circuit by pressing the button on the brake fluid reservoir. The float will then be earthed and the lamp should
light up.
2. Check fuse 5 and check that the supply to it is live.
3. Check the bulb and check that the supply to its terminals in the combined instrument is live.
4. Check the connectors, cable harnesses and the earth connection.
