System Pre Check

RABS Speed Sensor Mini-Schematic:

DESCRIPTION
Code 6 is generated by the module's detection of an interruption in the continuous signal from the speed sensor while rolling, caused by an intermittent open internal to the speed sensor, Circuit 519 (LG/BK) or Circuit 523 (R/PK), or a damaged speed sensor ring. This condition can be detected any time the brake pedal is not applied and 20 seconds has elapsed since the ignition self-test.

POSSIBLE CONTRIBUTING BASE BRAKE COMPONENT/VEHICLE WIRING CONCERNS
- Terminal backout in the module harness connector at Pins 3 and 10
- Terminal backout in the RABS speed sensor harness connector at Pins A and B.
- Bulkhead connector (between engine compartment and instrument panel) terminal backout or loose connection.
- Anti-lock electronic control unit or RABS speed sensor connectors are not fully mated with component.
- Intermittent open/short circuit in Circuits 519 (LG/BK) or 523 (R/PK).
- Damaged speed sensor (possibly metal shavings on pole piece).
- Damaged speed sensor ring (possibly teeth missing).