Toyota CH-R Service Manual > Smart Key System(for Entry Function): New Key cannot be Registered
DESCRIPTION
If a new electrical key transmitter sub-assembly could not be registered, wave
interference or a malfunction of the certification ECU (smart key ECU assembly),
electrical key transmitter sub-assembly, ID code box (immobiliser code ECU), steering
lock ECU (steering lock actuator or ...
Toyota CH-R Service Manual > Smart Key System(for Start Function): Ignition Hold Monitor Malfunction (B2271)
DESCRIPTION
This DTC is stored when a malfunction in the IG circuit or IG hold circuit of
the certification ECU (smart key ECU assembly) is detected.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B2271
...