WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the DCM (telematics transceiver), refer to Registration. Click here PROCEDURE
(a) Check that the engine can be started by pressing the engine switch.
HINT: If registration is not performed after replacing any of the following parts, the remote engine start and stop will not be available.
(a) Perform remote engine start and stop registration. Click here (b) Check if the problem symptom recurs.
(a) If DTC B2285 is output, perform troubleshooting for DTC B2285 first.
(a) Disconnect the G9 DCM (telematics transceiver) connector. (b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
HINT: The steering locks when any door is opened with the shift lever in P and the engine switch off. The steering unlocks when the engine switch is turned on (ACC).
(a) Disconnect the G9 DCM (telematics transceiver) connector. (b) Disconnect the G40 certification ECU (smart key ECU assembly) connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Hv Model): Driving Support ECU (C1A01)
DESCRIPTION If the forward recognition camera detects a malfunction in the internal circuit of the driving support ECU assembly, DTC C1A01 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A01 Driving Support ECU 2 seconds after the power switch is turned on (IG), a malfunctio ...