Special tool
(A): 09900–25008
(multi circuit tester set)

Short circuit check (wire harness to ground)
Using the testersDTC “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 ...
Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Fuel pump components”
Special tool
...
Cam chain tension adjuster inspection
The cam chain tension adjuster is maintained to proper
tension automatically.
Remove the cam chain tension adjuster. Refer to “engine top side
disassembly” .
Holding the cam chain tension adjuster as shown in
the figure, compress the plunger by turning the
adjuster body unt ...