32" (P0201) Fuel Injector Circuit Malfunction - Suzuki TU250X Service Manual

4-60 FI SYSTEM DIAGNOSIS

"32" (P0201) FUEL INJECTOR CIRCUIT MALFUNCTION

DETECTED CONDITION
Fuel injector signal is interrupted by 4 times or more
continuously although ignition signal is supplied from
the ECM.
ECM

When using the multi circuit tester, do not strongly touch the terminal of the ECM coupler with
a needle-point probe to prevent the terminal damage or terminal bend.
INSPECTION
NOTE:
After repairing the trouble, clear the DTC using SDS tool.
(4-24)
Step 1
1) Turn the ignition switch OFF.
2) Lift up the fuel tank by removing the fuel tank mounting bolt.
(5-3)
3) Check the fuel injector coupler for loose or poor contacts.
If OK, then measure the fuel injector resistance.
4) Disconnect the fuel injector coupler and measure the resis-
tance between terminals.
 Fuel injector resistance: Approx. 10.5 Ω at 20 °C (68 °F)
Lg/W
To side-stand
switch
Fuel injector
(Terminal – Terminal)
POSSIBLE CAUSE
• Injector circuit open or short
• Injector malfunction
• ECM malfunction
Side-stand relay
O/W
1
1
Ignition switch