DIAGNOSIS SYSTEM
DIAGNOSIS FUNCTION
(a) The road sign assist system displays a warning message on the multi-information display to inform the driver that the system is unavailable when it is malfunctioning.
| Warning Message | Details | DTC/RoB |
|---|---|---|
| RSA Malfunction Visit Your Dealer | Road sign assist system is malfunctioning | Stored |
Terminals Of Ecu
Dtc Check / ClearLexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Vehicle Stability Control System: Brake Switch "A" Circuit Open (P057113)
DESCRIPTION The skid control ECU (brake actuator assembly) detects the brake operating conditions through a signal transmitted by the stop light switch. The skid control ECU incorporates a circuit to detect an open circuit. This DTC is output when an open circuit is detected in the stop light signal ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lighting System (w/ Automatic Headlight Beam Level Control System): Headlight LH Circuit (B2439,B243A)
DESCRIPTION The No. 1 headlight ECU sub-assembly LH and No. 1 headlight ECU sub-assembly RH internally boost the power supply voltage to ensure a constant supplied current for the lo/hi beam LED of their respective headlight. By monitoring the LED power supply voltage, abnormal current and malfuncti ...