SYSTEM DIAGRAM
DOOR BUS LINES
CERTIFICATION BUS LINES (w/ Smart Key System)

Parts Location
System DescriptionToyota CH-R Service Manual > Navigation System: Touch Panel Switch does not Function
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection or
maintenance, performing initialization, registration or calibration may
be needed. Refer to Precaution for Navigation System.
Click here
When replacing the radio ...
Toyota CH-R Service Manual > Immobiliser System(w/ Smart Key System): Short to GND in Immobiliser System Power Source Circuit (B278A)
DESCRIPTION
When there is a short to GND in the power supply for the transponder key amplifier
of the engine switch, the certification ECU (smart key ECU assembly) stores this
DTC.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...