Toyota Camry Hybrid AHV40 Manual page 361

BE-100
When key battery is low
Step
To operate the smart key system when the key battery is low, hold the key against the power
a)
switch as shown below while depressing the brake pedal.
The main body ECU receives the stop light switch signal and transmits a key certification
b)
request signal to the certification ECU.
The certification ECU does not receive an ID code response from the tuner, so it actuates the
c)
transponder key amplifier built into the power switch.
d) The transponder key amplifier outputs an HV immobilizer radio wave to the key.
The key receives the radio wave, and returns a radio wave response to the transponder key
e)
amplifier.
The transponder key amplifier combines the key ID codes with the radio wave response, and
f)
transmits it to the certification ECU.
The certification ECU judges and verifies the ID code, and transmits a key certification OK
g)
signal to the main body ECU. The buzzer in the combination meter sounds at the same time.
After the buzzer sounds, if the power switch is pressed within five seconds while the brake
h) pedal is depressed, the power source switches to READY in the same way as the normal smart
key operation.
After the buzzer sounds, if the power switch is pressed within five seconds while the brake
i) pedal is not depressed, the power source will be switched to ACC or IG-ON in the same way
as the normal smart key operation.
Power Switch
Key Power Switch
d)
e)
BODY ELECTRICAL - SMART KEY SYSTEM
System Operation
TOYOTA Mark
Within 10mm (0.4 in.)
h), i)
Main Body
ECU
c)
Certification ECU
f)
Key
a), h), i)
g)
b)
g)
025BE112TE
Stop Light Switch
Combination Meter
D Buzzer
02HBE64Y