Fail-Safe Chart

STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: FAIL-SAFE CHART

HINT
If the power voltage to the ECU returns to normal within 10 seconds during tilt or telescopic operation, the operation will be resumed. If it returns to normal after 10 seconds have elapsed, the operation restarts when a tilt or telescopic operation signal is again input to the ECU.

FAIL-SAFE OPERATION





1. FAIL-SAFE FUNCTION

(a) If a malfunction in the tilt position sensor signal or telescopic position sensor signal occurs while operating the power tilt or power telescopic function, the tilt and telescopic ECU stops the operation of the power tilt and power telescopic steering column system.

(b) If the power voltage to the ECU drops below approximately 8 V while operating the power tilt or power telescopic function, the ECU stops the operation of the power tilt and power telescopic steering column system.

(c) If the tilt and telescopic ECU detects that the motor has locked during the operation of the power tilt or power telescopic function, the ECU stops the operation of the power tilt and power telescopic steering column system.

(d) If the communication of an ECU that is related to the power tilt and power telescopic steering column system is interrupted, the tilt and telescopic ECU effects the controls listed below.





HINT
* *1: All ECUs that are related to the power tilt and power telescopic steering column system.
* *2: The operation is permitted if the engine switch signal is ON while the signal from main body ECU is interrupted.
The operation is prohibited if the engine switch signal is OFF while the signal from main body ECU is interrupted.
* *3: In case that the signal from main body ECU is interrupted after the operation was started, the operation will be continued if the engine switch signal is ON.
The operation is prohibited if the engine switch signal is OFF while the signal from main body ECU is interrupted.