DD2 Check FLS No. 2 Switch

- Disconnect 2-pin plug on Fluid Level Switch (FLS) located on brake master cylinder filler cap on hydraulic control unit reservoir.

Connector:

- Check for continuity between each pin and body ground.

- Is continuity present?

YES -- Replace brake master cylinder filler cap.

NO -- Service or replace cable harness circuit 542, 535, or 549.