Test 73B - Open Brake Fluid Level Switch Circuit
NOTE:
For connector terminal identification and wiring diagrams, see BODY CONTROL COMPUTER
section in this article. Perform TEST VER-1
VERIFICATION TEST 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 No. 1 (Black wire) and No. 2 (Gray/Black wire). 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 brake fluid level switch connector terminal No. 2 (Gray/Black wire) and chassis ground. 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, check resistance of instrument cluster Gray connector terminal No. 6 (Gray/Black wire). 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 the INSTRUMENT PANEL article.