2015 Acura TLX Base, 2.4L EngFACTORY OEM SERVICE PROCEDURE

Keyless Access Control Unit DTCS

2015-17 

DTC Description DTC type
B1601 Keyless access control unit internal (CPU) error Internal error
B1602 Keyless access control unit internal (EEPROM) error Internal error
B1627 RF1 unit disconnected (2-way transceiver or RF antenna) Signal error
B1632 MTR CONT signal error Signal error
B1640 RF unit not connected Signal error
B1641 RF2 unit transmitter/receiver circuit malfunction Signal error
B1645 Driver's door LF antenna circuit short Signal error
B1646 Driver's door LF antenna circuit open Signal error
B1647 Passenger's door LF antenna circuit Short Signal error
B1648 Passenger's door LF antenna circuit open Signal error
B1649 Driver side rear passenger door antenna circuit short Signal error
B1650 Driver side rear passenger door antenna circuit open Signal error
B1651 Passenger side rear passenger door antenna circuit short Signal error
B1652 Passenger side rear passenger door antenna circuit open Signal error
B1659 Front interior LF antenna circuit short Signal error
B1660 Front interior LF antenna circuit open Signal error
B1663 Rear interior LF antenna circuit short Signal error
B1664 Rear interior LF antenna circuit open Signal error
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U1281 Keyless access control unit lost communication with MICU Loss of communication
U128D Keyless access control unit lost communication with gauge control module Loss of communication

2018-20 

DTC Description DTC type
B1601 Keyless access control unit internal (CPU) error Internal error
B1602 Keyless access control unit internal (EEPROM) error Internal error
B1627 RF1 unit disconnected (2-way transceiver or RF antenna) Signal error
B1632 MTR CONT signal error Signal error
B1640 RF unit not connected Signal error
B1641 RF2 unit transmitter/receiver circuit malfunction Signal error
B1645 Driver's door LF antenna circuit short Signal error
B1646 Driver's door LF antenna circuit open Signal error
B1647 Passenger's door LF antenna circuit Short Signal error
B1648 Passenger's door LF antenna circuit open Signal error
B1649 Driver side rear passenger door antenna circuit short Signal error
B1650 Driver side rear passenger door antenna circuit open Signal error
B1651 Passenger side rear passenger door antenna circuit short Signal error
B1652 Passenger side rear passenger door antenna circuit open Signal error
B1659 Front interior LF antenna circuit short Signal error
B1660 Front interior LF antenna circuit open Signal error
B1663 Rear interior LF antenna circuit short Signal error
B1664 Rear interior LF antenna circuit open Signal error
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U1281 Keyless access control unit lost communication with MICU Loss of communication
U128D Keyless access control unit lost communication with gauge control module Loss of communication
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