Suzuki GW250 Service Manual page 188

Step 1
IAT sensor input voltage check
1) Turn the ignition switch OFF.
2) Disconnect the IAT sensor coupler 1.
3) Check for proper terminal connection to the IAT sensor cou-
pler.
4) If connections are OK, turn the ignition switch ON.
5) Measure the input voltage between the Y/R wire and ground.
6) If OK, measure the input voltage between the Y/R wire and
B/Br wire.
 09900-25008: Multi circuit tester set
 Tester knob indication: Voltage ()
 IAT sensor input voltage:
4.5 – 5.5 V
(+ terminal: Y/R – - terminal: Ground)
(+ terminal: Y/R – - terminal: B/Br)
Is check result OK?
YES Go to Step 3.
NO Go to Step 2.
FI SYSTEM DIAGNOSIS 4-47
1
1
V