DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning.
PROCEDURE
(a) Clear the DTCs. Click here (b) Check for DTCs. Click here OK: DTC U023A is not output.
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Toyota Tundra Service Manual > Navigation System: AV Signal Stoppage (Low Battery Voltage) (B158F)
DESCRIPTION This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the navigation receiver assembly dropping temporarily. DTC Code DTC Detection Condition Trouble Area B158F A video or audio signal is interrupted when the battery voltage drops. Navigation rece ...