Toyota 1HD-FT Repair Manual page 243

ST-20
STARTING SYSTEM - VOLTAGE CONVERTER RELAY(w( 24 V Starter)
ST
Check for
Tester connection
Condition Specified value
Turn starter switch OFF No voltage
Voltage 1 - Ground
Turn starter switch START
Battery voltage
Turn starter switch OFF
No voltage
Voltage 2 -Ground
Turn starter switch ON Battery voltage
Tum starter switch OFF No voltage
Voltage
3 -Ground
Turn starter switch START Ballery voltage
Continuity 4 - Ground
-
Continuity
Continuity
5-6
-
Continuity
Continuity 7 - Ground
-
Continuity
3. RECONNECT VOLTAGE CONVERTER TIMER
CONNECTOR
VOLTAGE CONVERTER RELAY
(wi 24 V Starter)
VOLTAGE CONVERTER RELAY
INSPECTION
1. REMOVE VOLTAGE CONVERTER RELAY
--
Continuity
=
o
Sl0ll81
Continuity
=
=
o
No continuity
=
,.
2. INSPECT VOLTAGE CONVERTER RELAY
A. Inspect rellY continuity
(a) Using an ohmmeter. check that there is continuity
between terminals
8
and g.
(b) Using an ohmmeter. check that there is continuity
between terminals 1 - and E.
(c) Using an ohmmeter. check that there is continuity
between terminals 1 + and 2+.
(d) Using an ohmmeter. check that there is no continuity
between terminals 1- and 2+.
If continuity is not as specified. replace the relay.