Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Brake Fluid Level Sensor/Switch: Testing and Inspection

INSPECT BRAKE FLUID LEVEL WARNING SWITCH
a. Inspect the continuity.
1. Remove the reservoir tank cap and the strainer.
2. Disconnect the connector.
3. Measure the resistance according to the value(s) below.

Float up (switch off): 10 kOhms or higher

4. Use a syphon, etc., to take fluid out of the reservoir tank.
5. Measure the resistance according to the value(s) below.

Float down (switch on): Below 1 Ohm

6. Refill the reservoir tank with brake fluid.