DESCRIPTION If the DCM (Telematics Transceiver) detects an error in communication between the DCM (Telematics Transceiver) and the airbag ECU assembly as a result of the DCM (Telematics Transceiver) self check, this DTC will be set.
WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE: The vehicle is equipped with an SRS (Supplemental Restraint System) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the Precaution in the SRS. Click here
PROCEDURE
(a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG) and wait for 10 seconds. (d) Turn the Techstream on. (e) Clear the DTCs. Body Electrical > SRS Airbag > Clear DTCs(f) Recheck for DTCs. Body Electrical > SRS Airbag > Trouble Codes
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
Reference Waveform:
(a) Remove the airbag ECU assembly but do not disconnect the connectors. Click here
(a) Disconnect the G9 DCM (Telematics Transceiver) connector. (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Replace the DCM (Telematics Transceiver). Click here NOTICE:
(a) Disconnect the G9 DCM (Telematics Transceiver) connector. (b) Disconnect the G50 airbag ECU assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Avalon Service & Repair Manual > Safety Connect System(for Hv Model): Health Check
HEALTH CHECK HEALTH CHECK Health Check provides an overall view of vehicle status including telematics. Health Check will provide DCM (Telematics Transceiver) software version, PRL version, and applicable DTCs and fault codes related to telematics. (a) Connect the Techstream to the DLC3. (b) Turn th ...