DTC U0101-00: Lost Communication With TCM; DTC U0131-00: Lost Communication With Power Steering Control Module [07/2015 - ]: Contents

DTC No.	Detection Item	Trouble Area	Warning Indicate	Memory	Fail-safe Operation	Note
U010100	Lost Communication with TCM	Communication error with combination meter	Air bag system warning light Fig 1: Identifying Flashing Pattern: 14 Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002 Flashing pattern: 14 Priority ranking: 5	DTC Stored	Not applicable	Drive cycle: Not applicable Self test type: CMDTC self test, ODDTC self test
U013100	Lost Communication With Power Steering Control Module	Communication error with combination meter	Air bag system warning light Fig 2: Identifying Flashing Pattern: 14 Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002 Flashing pattern: 14 Priority ranking: 5	DTC Stored	Not applicable	Drive cycle: Not applicable Self test type: CMDTC self test, ODDTC self test

SYSTEM MALFUNCTION LOCATION	U010100: TCM communication error U013100: Power steering ECU communication error
DETECTION CONDITION	U010100 Center airbag sensor assembly does not receive CAN signal from TCM for 5 s or more, or receives CAN signal error from TCM for 0.4 s. U013100 Center airbag sensor assembly does not receive CAN signal from Power steering ECU for 5 s or more, or receives CAN signal error from Power steering ECU for 0.4 s.
FAIL-SAFE FUNCTION	Not applicable
POSSIBLE CAUSE	Malfunction in CAN line between the center airbag sensor assembly and TMC Malfunction in CAN line between the center airbag sensor assembly and Power steering ECU Malfunction in CAN line between the center airbag sensor assembly and combination meter
SYSTEM WIRING DIAGRAM	Not applicable