Toyota 1HD-FT Repair Manual page 122

ENGINE - FUEL SYSTEM
EG-'09
Ohmmeter
Ohmmeter
2.
INSPECT RELAY CONTINUITY
0Ll
No
OD
(a)
Using an ohmmeter. check that there is
continuity
•
Continuity
Continuity
between terminals 1 and 3.
0:
~
0:
.1-
(b)
Check that there is no continuity between terminals 2
and 4.
~'~
If continuity is not as specified. replace the relay.
4 "....,
-
Ohmmeter
DO
f
0.,
Continuity
4 3
•
3. INSPECT RELAY OPERATION
(a) Apply battery voltage across terminals 1 and 3.
(b) Using an ohmmeter. check that there is continuity
between terminals 2 and 4.
If operation is not as specified. replace the relay.
4. REINSTALL FUEL HEATER RELAY