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BR -128 BRAKE SYSTEM MONITOR SCANTOOL DATA E70AF2E4 1. Connect scantool to Data Link Connector(DLC). 2. Ignition "ON" & Engine "ON" 3. Press the brake pedal. 4. Monitor the "BRAKE SWITCH" parameter on the scantool. Specification : Lateral G sensor : ± 0 G, YAW rate Sensor : ± 0 deg/s Fig 1) Test Condition : Ignition "ON" & Engine "OFF" Normal data (There are difference in displayed Normal data Fig1 SCMBR6559L 5. Whenever brake pedal is pushed down, is the brake switch’s scantool data changed ON/OFF? YES ▶ Fault is intermittent caused by poor connection in Yaw Rate & Lateral G sensor harness and/or HECU’s connector or was repaired and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, NO ▶ Go to "W/Harness Inspection" procedure. |