SYSTEM DIAGRAM 1. for Driver Side: 
2. for Passenger Side:  |
Toyota Tundra Service Manual > Blind Spot Monitor System: Lost Communication with ECM / PCM "A" (U0100,U0125,U0126,U0129,U0142)
DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor. HINT: If CAN communication system DTCs are stored, they may also be stored for other systems. DTC Code DTC Detection Condition Trouble Area U0100 Lost communication ...
