Suzuki SY413 Service Manual page 5034

ELECTRIC CONTROL SYSTEM
LOAD SWITCH AND COOLANT TEMP. SWITCH
Refer to the following tables.
LOAD SWITCH
Load
LOW CLOSE
HIGH
GLOW PLUG CONTROL SYSTEM
Refer to the above wiring diagram and "Procedure 042" in "All models diesel diagnosis manual".
EGR SOLENOID VALVE CONTROL SYSTEM
Refer to the above wiring diagram and "Procedure 044" in "All models diesel diagnosis manual".
COOLANT TEMP. SWITCH
Switch
Lower than 605C (1405F)
OPEN
Higher than 605C (1405F)
ENGINE AND EMISSION CONTROL SYSTEM 6E3-5
Coolant temperature
1. Battery
2. Main fuse box
3. Ignition switch
4. Fuse (20 A)
5. Glow plug
6. Glow plug control unit
7. Glow plug indicator lamp
8. Relay (glow plug control)
9. Relay (EGR control)
10. Load switch
11. Coolant temp. switch (engine control)
12. EGR solenoid valve
13. Solenoid valve (installed at fuel injection
pump)
Switch
OPEN
CLOSE