Pressure Differential Warning Light Switch
- Attach a bleeder hose to bleed valve at either rear brake. Immerse other end of hose in container with brake fluid. Turn ignition on.
- Open bleed valve while pressure is being applied to brake pedal. Red BRAKE warning light should activate. Close bleed valve before pressure is released from pedal.
- Reapply brake pedal using moderate to heavy pressure. Red BRAKE warning light should go out. Repeat test on front brake system. System should function in same manner. Turn ignition off.
- If Red BRAKE warning light does not operate as specified for either system but comes on when electrical circuit is tested, Red BRAKE warning light switch portion of valve is defective.