Test 73B - Open Brake Fluid Level Switch Circuit
NOTE:
Perform TEST 73A
before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION
. For wiring schematics, see WIRING DIAGRAMS
in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE
after each repair.
CAUTION:
Always turn ignition off prior to disconnecting any module connector.
- Disconnect brake fluid level switch connector. Brake fluid level switch connector is located at brake fluid reservoir. Connect jumper wire between brake fluid level switch connector terminals. Turn ignition on. If BRAKE warning lamp illuminates, replace brake fluid level switch. If BRAKE warning lamp does not illuminate, disconnect jumper wire. Go to next step.
- Connect jumper wire between ground and terminal No. 2 (Gray/Black wire) on brake fluid level switch connector. If BRAKE warning lamp illuminates, repair open Black wire. If BRAKE warning lamp does not illuminate, go to next step.
- Leave jumper wire connected. Turn ignition off. Disconnect instrument cluster Gray connector. Using scan tool in ohmmeter mode, measure resistance at terminal No. 6 (Gray/Black wire) on instrument cluster Gray connector. If resistance is 5 ohms or greater, repair open Gray/Black wire. If resistance is less than 5 ohms, go to next step.
- Remove and inspect BRAKE warning lamp. Replace lamp if necessary. If lamp is okay, repair or replace instrument cluster. See appropriate INSTRUMENT PANEL article in the ACCESSORIES & ELECTRICAL section.