Monitor SCANTOOL Data
- Connect scantool to Data Link Connector (DLC).
- Ignition "ON" & Engine "ON"
- Press the brake pedal.
- Monitor the "BRAKE SWITCH" parameter on the scantool.
Specification : Lateral G sensor: ± 0 G, YAW rate Sensor: ± 0 deg/s
- 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, bending, corrosion, contamination.
NO
- Go to "W/Harness Inspection" procedure.