FAIL-SAFE CHART HINT: If the power source voltage to the multiplex tilt and telescopic 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 sent to the multiplex tilt and telescopic ECU again. Fail-safe Operation
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 multiplex tilt and telescopic ECU stops the operation of the power tilt and power telescopic steering column system. (b) If the power source 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 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 control of functions of the multiplex tilt and telescopic ECU are limited as shown in the table below.
HINT:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS CHECK FOR INTERMITTENT PROBLEMS HINT: A momentary interruption (open circuit) in the connectors and/or wire harnesses between the sensors and ECUs can be detected using the Data List function of the Techstream. (a) Turn the power switch off. (b) Connect the Techstream ...