Toyota CH-R Service Manual > Immobiliser System(w/ Smart Key System): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Immobiliser System
DTC No.
Detection Item
Link
B2779
Engine Starter Communication Malfunction
B2784
Antenna Coil Open / Short
B278A
...
Toyota CH-R Service Manual > Smart Key System(for Entry Function): Back Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
If the entry lock and unlock functions do not operate for the back door only,
the request code may not be being transmitted from the back door. If the entry functions
for other doors operate properly, communication between the electrical key transmitter
sub-assembly and electrical ...