Stereo Jack Adapter Assembly
Back-up BatteryToyota CH-R Service Manual > Wireless Door Lock Control System(w/ Smart Key System): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Wireless Door Lock Control System
DTC No.
Detection Item
Link
B1242
Wireless Door Lock Tuner Circuit Malfunction
...
Toyota CH-R Owners Manual > Steps to take in an emergency: If the electronic key does not operate properly (vehicles with a smart key system)
If communication between the electronic key and vehicle is interrupted
or the electronic key cannot be used because the battery is depleted, the smart
key system and wireless remote control cannot be used. In such cases, the doors
can be opened and the engine can be started by following the pr ...