DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects an open or short circuit in the manual (SOS) switch.
WIRING DIAGRAM w/o Sliding Roof![]() ![]() CAUTION / NOTICE / HINT HINT: Before performing this diagnostic procedure, make sure to perform Health Check and confirm that the DCM/VIN registration information is correct. Click here
PROCEDURE
(a) Choose the model to be inspected.
(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 > Telematics > Clear DTCs(f) Recheck for DTCs. Body Electrical > Telematics > Trouble Codes
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect the G9 DCM (Telematics Transceiver) connector. (b) Disconnect the O10 roof console box sub-assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Replace the DCM (Telematics Transceiver). Click here NOTICE:
(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 > Telematics > Clear DTCs(f) Recheck for DTCs. Body Electrical > Telematics > Trouble Codes
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect the G9 DCM (Telematics Transceiver) connector. (b) Disconnect the O9 roof console box sub-assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Replace the DCM (Telematics Transceiver). Click here NOTICE:
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Toyota Avalon Service & Repair Manual > Electric Parking Brake System(for Hv Model): Short circuit in Power source circuit (C13A1)
DESCRIPTION C13A1 is stored if the power supply relay in the parking brake ECU assembly has a short circuit. C13A1 is stored if the power switch is off and a voltage of 2.5 V or higher is applied to the IG terminal and an electric parking brake switch assembly malfunction or wire harness malfunction ...