Visually inspect the isc valve if necessary.

Throttle body inspection and cleaning
Throttle valve synchronizationDTC “c46” (p1657-h/l or p1658): excv
actuator circuit malfunction
Detected condition
Possible cause
C46
The operation signal does not reach the
excv actuator.
Excva position sensor voltage low or
high
0.14 V ≤ Sensor voltage < 4.9 V
(without the above range)
excva can not operate properly.
Excva ...
Isc valve reset
When removing or replacing the throttle body assembly,
reset the isc valve learned value in the following
procedures:
turn the ignition switch on position.
Set up the sds tools. (Refer to the sds operation
manual for further details.)
Click “active control”.
Click “is ...
Rear brake master cylinder parts inspection
Refer to “rear brake master cylinder disassembly and assembly” .
Master cylinder
Inspect the master cylinder bore for any scratches or
other damage.
Piston / rubber parts
Inspect the piston surface for any scratches or other
damage.
Inspect the primary cup, secondary cup and dust boot
...