Suzuki TU250X Service Manual page 164

Step 1 (When indicating P0115-L:)
1) Turn the ignition switch OFF.
2) Check the ET sensor coupler for loose or poor contacts.
If OK, then check the ET sensor lead wire continuity.
3) Disconnect the ET sensor coupler.
4) Check the continuity between B/Bl wire and ground.
If the sound is not heard from the tester, the circuit condition
is OK.
 Tester knob indication: Continuity test ()
5) Connect the ET sensor coupler and turn the ignition switch
ON.
6) Measure the voltage between B/Bl wire and ground.
 ET sensor output voltage:
 09900-25008: Multi circuit tester set
09900-25009: Needle-point probe set
 Tester knob indication: Voltage ()
Are the continuity and voltage OK?
YES Go to Step 2.
• B/BI wire shorted to ground
NO
• If wire is OK, go to Step 2.
0.1 – 4.6 V
(+ B/BI – - Ground)
FI SYSTEM DIAGNOSIS 4-43
1
1
V