STEP 1. Brake fluid level check
STEP 3. Brake fluid leak check
STEP 4. Using scan tool (M.U.T.-IIISE) data list
STEP 5. Brake fluid level switch check
STEP 6. Resistance measurement at brake fluid level switch connector.
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the brake fluid level switch connector (ground terminal) and the body ground.OK: The resistance should be 2 ohms or less
Is the check result normal?
Go to Step 7. The open circuit may be present in the ground circuit. Repair the wiring harness between the brake fluid level switch connector and the body ground.
STEP 7. Check of open circuit in BFSW line between ETACS-ECU connector and brake fluid level switch connector
STEP 8. Using scan tool (M.U.T.-IIISE) data list
STEP 9. Using scan tool (M.U.T.-IIISE) special function
STEP 10. Retest the system.