Installation
ComponentsToyota 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 > Wireless Door Lock Control System(w/ Smart Key System): Wireless Door Lock Tuner Circuit Malfunction (B1242)
DESCRIPTION
The electrical key and TPMS receiver assembly is used to receive radio waves
related to the entry functions of the electrical key transmitter sub-assembly. The
certification ECU (smart key ECU assembly) decodes the requested electrical key
transmitter sub-assembly operation by ide ...