Brake Warning Lamp; Resistance-Fuel Level Relationship - Suzuki Samurai 1986 Service Manual

[Gauge unit]
Use ohmmeter to confirm that level gauge unit
changes in resistance with change of the float
position. Float position-to-resistance relation-
ship can be plotted in a graph as shown below.
F
Fig. 21-20

Resistance-Fuel Level Relationship

Fig. 21-21

21-7. BRAKE WARNING LAMP

The brake warning lamp system consists of the
brake fluid level switch installed to the master
cylinder reservoir and the lamp inside the
combination meter.
This circuit includes a parking brake switch
which gives a warning for unreleased parking
brake.
OPERATION
Brake fluid level warning lamp circuit consists of
brake fluid level switch installed in master
cylinder reservoir, brake fluid level warning lamp
in gage cluster and check relay.
Also, this circuit is additionally provided with
parking brake switch which warns that parking
brake is applied.
warning lamp comes on, if ignition switch is
turned ON and parking brake is applied.
For bulb check, warning lamp comes on briefly
during engine starting regardless of brake fluid
level position and parking brake operation.
Because point of check relay is closed.
After engine is started, release parking brake.
If lamp gose off, brake fluid level is adequate.
When warning lamp dose not operate, use circuit
diagram as reference to check bulb, wiring, etc.
F : Full
E : Empty
B
Fig. 27-22
when engine is stopped,
check relay
2. Warning lamp
: Black 3. Parking brake switch
4. Main switch
5. Battery
21-13