DESCRIPTION The navigation receiver assembly and stereo component amplifier assembly are connected via AVC-LAN communication. When an AVC-LAN communication error occurs between the navigation receiver assembly and stereo component amplifier assembly, this DTC will be stored.
HINT:
WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspection procedure. PROCEDURE
(a) If DTC B15C3 is output, perform the troubleshooting of DTC B15C3 first. Result
(a) Check that optional components (including associated wiring) which generate radio waves are not installed. Result
HINT:
(a) Remove optional components (including associated wiring). NOTICE: Do not remove optional components or associated wiring without the permission of the customer.
(a) Clear the DTCs (See page
(b) Recheck for DTCs and check if the same DTC is output again (See page
OK: No DTCs are output.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Disconnect the J135 navigation receiver assembly connector. (b) Disconnect the J141 stereo component amplifier assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Replace the stereo component amplifier assembly with a known good one (See page
(b) Clear the DTCs (See page
(c) Recheck for DTCs and check if the same DTC is output again. (See page
OK: No DTCs are output. Result
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Toyota Tundra Service Manual > Dynamic Radar Cruise Control System: Radar Cruise Control Presence Determination Malfunction (Engine / HV) (C1A52)
DESCRIPTION DTC C1A52 is stored when the ECM cannot recognize the millimeter wave radar sensor assembly. DTC No. Detection Item DTC Detection Condition Trouble Area C1A52 Radar Cruise Control Presence Determination Malfunction (Engine / HV) Approximately 17 seconds after the ignition switch is turne ...