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.
|
Toyota Tundra Service Manual > Can Communication System: Check Bus 1 Lines for Short Circuit
DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 23 (CA1H) and 8 (CA1L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Symptom Trouble Area *1: w/ Pre-collision System *2: w/ Blind Spot Monitor Sys ...