DESCRIPTION If a malfunction is detected in the power supply circuit, the trailer brake control ECU (brake control with bracket relay) stores this DTC.
WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE
(a) Check the battery voltage. Standard Voltage:
(b) Disconnect the J172 trailer brake control ECU (brake control with bracket relay) connector. (c) Inspect both the connector case and the terminal for deformation and corrosion. OK: No deformation or corrosion. (d) Turn the ignition switch to ON. (e) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Reconnect the J172 trailer brake control ECU (brake control with bracket relay) connector. (b) Clear the DTCs. Click here (c) Turn the ignition switch off. (d) Turn the ignition switch to ON. (e) Perform a road test. (f) Check if the same DTC is output. Click here
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Toyota Tundra Service Manual > Rear View Monitor System(for Navigation Receiver Type): Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected ...