Suzuki TU250X, Руководство по обслуживанию

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4-52 FI SYSTEM DIAGNOSIS
Step 2
1) Remove the TO sensor. (

4-71)
2) Connect the TO sensor coupler and ECM coupler.
3) Insert the needle-point probes to the lead wire coupler.
4) Turn the ignition switch ON.
5) Measure the voltage at the wire side coupler between Br and
B/Br wires.

TO sensor voltage (Normal): 0.4 – 1.4 V
(
+
Br –
-
B/Br)
6) Also, measure the voltage when leaning the motorcycle.
7) Measure the voltage when it is leaned 65° and more, left and
right, from the horizontal level.

TO sensor voltage (Leaning): 3.7 – 4.4 V
(
+
Br –
-
B/Br)

09900-25008: Multi circuit tester set
09900-25009: Needle-point probe set

Tester knob indication: Voltage (

)
Is the voltage OK?
“24” (P0351) IGNITION SYSTEM MALFUNCTION
* Refer to the IGNITION SYSTEM for details. (

9-22)
NOTE:
After repairing the trouble, clear the DTC using SDS tool. (

4-24)
2
V
2
V
YES
• R, Br or B/Br wire open or shorted to ground, or
poor
4
,
A
or
T
connection
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO
• Loose or poor contacts on the ECM coupler
• Open or short circuit
• Replace the TO sensor with a new one.
ECM coupler (Harness side)
2