Service manual

3. Electrical Parts
3-47
3.3.14 Coolant water temperature gauge
SDG25S-6A7,SDG45S∼150S-6A6
SG06040
(1) List of functions
Pin No. Line color Connection Function
1 B Grounding
2 Y/W Panel light switch Power source for lighting
3 W/B (Y) Water temperature sensor Detector for water temp
4 R/W 10A fuse Power source for water temperature gauge
( ) marked indicates the line color for SDG45S.
(2) Temperature range and resistance value of sensor
SDG25S-6A7,SDG125S/150S-6A6 SDG45S/65S/100S-6A6
Temperature range
[°F (℃)]
Sensor resistance value
(Ω)
Temperature range
[°F (℃)]
Sensor resistance value
(Ω)
120 (49) 156 120 (49) 350
175 (79) 52.3 160 (71) 170
210 (99) 28.4 210 (99) 63.5
250 (121) 17 250 (121) 36.2