High Temperature Line Pressure Up System - Toyota Land Cruiser 1988 Repair Manual

Fl-78
Battery
EFI SYSTEM - Electronic Control System
High Temperature Line Pressure Up System
Fusible
Link Fuse
MAIN EFI15A
0.85R
F12663
Battery
F12662
ECU
FPU
M-REL
TWS
E1
F12462
INSPECTION OF HIGH TEMPERATURE
LINE UP SYSTEM
1. INSPECT WATER TEMPERATURE SWITCH
(a) Using an ohmmeter, check that there is no continu-
ity
between the terminal and body when the oil
temperature is below 98°C. (208°F).
(b) Check that there is continuity between the terminal
and body when the oil temperature is above 1
osoc
(221 OF).
If operation is not as specified, replace the switch.
2. INSPECT VSV
(a) Check that air flows from the pipe E to pipe F.
(b) Apply battery voltage across the terminals.
(c) Check that air flows from pipe E to air filter.
If operation is not as specified, replace the VSV.