Fail-Safe Chart

FAIL-SAFE CHART

1. FAIL SAFE OPERATION
- If there is a problem with sensor signals or actuator systems, the skid control ECU prohibits power supply to the ABS and TRACTION actuator assembly and informs the ECM of VSC system failure. The ABS and TRACTION actuator assembly turns off each solenoid and the ECM shuts off VSC control (traction control signal) from the skid control ECU accordingly, which turns out to be as if the ABS, TRAC and VSC systems were not installed. The ABS control will be prohibited, but EBD control continues as much as possible. If the EBD control is impossible, the BRAKE warning light comes on to warn the driver.
- If system components have any malfunction before starting control, immediately stop the operation. If system components have any malfunction during control, gradually stop the control so as not to trigger a sudden change in vehicle conditions. If it is impossible to control the systems, the warning light comes on to inform the driver of termination of the systems.

Fail-Safe Chart:

Fail-Safe Chart:

HINT: If the hydraulic brake booster encounters a malfunction, brake performance is gradually lost and ABS, BA, TRAC and VSC systems are prohibited.

HINT: A malfunction in either the ABS or BA system will result in an identical operation, with ABS, BA, TRAC and VSC system control prohibited.