The solenoid valve is built in the KIBS Hydraulic Unit [A].
Therefore the solenoid valve cannot be checked directly.
If any of these service codes appears even if all checks are ended, replace the KIBS hydraulic unit
If the service code does not appear, the KIBS system normal (temporary failure).

KIBS Solenoid Valve Relay Inspection (Service Code b 19)Water Pump Housing Disassembly
NOTICE
Do not damage the hole wall of the water pump
housing.
Insert a bar [A] into the pump housing [B], and hammer
evenly around the circumference of the mechanical seal
bottom [C].
Take the oil seal [A] out of the housing [B] with a hook [C].
...
Release Shaft Installation
Apply grease to the oil seal lips on the upper ridge of the
clutch cover.
Apply engine oil to the needle bearings in the hole of the
clutch cover.
Applymolybdenum disulfide grease to the pusher-holding
portion [A] on the release shaft.
Install the washer [B] and spring [C].
...
Special Tools
Inside Circlip Pliers:
57001-143
Oil Seal & Bearing Remover:
57001-1058
Bearing Driver Set:
57001-1129
Jack:
57001-1238
Bearing Remover Head, 15 ×
17:
57001-1267
Fork Oil Level Gauge:
57001-1290
Bearing Remover Shaft, 13:
57001-1377
Fork Oil Seal Driver, 43:
57001-15 ...