Brake Fluid Level Switch Test

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the brake fluid level switch connector.
Check for continuity between the terminals (1) and (2) with the float in the down position and in the up position.
NOTE:
- If both the ABS/VSA indicator and the brake system indicator (Red) come on at the same time, check the ABS or the VSA system first: ABS (see GENERAL TROUBLESHOOTING INFORMATION ), VSA (see GENERAL TROUBLESHOOTING INFORMATION ).
- Remove the brake fluid completely from the reservoir. With the float down, there should be continuity.
- Fill the reservoir/subreservoir with brake fluid to the MAX (upper) level (A). With the float up, there should be no continuity.
- If the parking brake switch and brake fluid level switch are OK, but the brake system indicator (Red) does not function, do the gauge control module self-diagnostic function (see SELF-DIAGNOSTIC FUNCTION ).
Fig 1: Identifying Brake Fluid To MAX (Upper) Level
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Reconnect the brake fluid level switch connector.