OPERATION CHECK
CHECK FUNCTION
(a) Check that the key reminder warning buzzer sounds.
(1) With the driver door closed, insert the key into the ignition key cylinder and then make sure that the ignition switch is off or ACC.
(2) Check that the buzzer sounds intermittently if the driver door is opened.
(b) Check that the key reminder warning buzzer stops.
(1) Check that the buzzer stops sounding if any of the following operations is performed while the buzzer is sounding:
How To Proceed With Troubleshooting
Problem Symptoms TableToyota CH-R Service Manual > Navigation System: Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION
The stereo jack adapter assembly sends the sound signal from an external device
to the radio and display receiver assembly via this circuit.
The sound signal that has been sent is amplified by the radio and display receiver
assembly and then is sent to the speakers.
If there is an ...
Toyota CH-R Service Manual > Smart Key System(for Start Function): Lost Communication with ECM / PCM (U0100,U0140,U0142,U0155,U1117)
DESCRIPTION
These DTCs are stored when there is a CAN communication malfunction between the
certification ECU (smart key ECU assembly), ECM, main body ECU (multiplex network
body ECU) or combination meter assembly, and data from the option connector (bus
buffer ECU) cannot be received.
...