Relays With Five (5) Terminals - Toro Groundsmaster 4500-D Series Service Manual

Relays with Five (5) Terminals

Groundsmaster ® 4500-D/4700-D
19245SL Rev A
g309695
1. Air cleaner mount
2. Engine ECU mount
3. 5 terminal relay
Your Groundsmaster uses a number of electrical relays that have five (5)
terminals. A tag near the wire harness relay connector can be used to identify
each relay.
The main relay is used on models 30893, 30893TE, 30899 and 30899TE to
provide current for several engine components when energized by the engine
electronic control unit (ECU).
The rack actuator relay is used on models 30893, 30893TE, 30899 and 30899TE
to provide current for the engine rack actuator when energized by the engine
ECU.
The EGR relay is used on models 30885 and 30887 to provide current to the
engine EGR valve when energized by the engine ECU.
The main, rack actuator and EGR relays are attached to the air cleaner mount
bracket near the engine ECU
Figure 206
4. Cap screw
5. Flange nut
(Figure 206).
Page 6–45 Electrical System: Component Testing