32" (P0201) Fuel Injector Circuit Malfunction - Suzuki RM-Z250 Service Manual

12-54 FI SYSTEM DIAGNOSIS

"32" (P0201) FUEL INJECTOR CIRCUIT MALFUNCTION

DETECTED CONDITION
CKP signal is produced but fuel injector signal is
interrupted by 8 times or more continuously.
ECM
#11

When using the multi circuit tester, do not strongly touch the terminal of the ECM coupler with
a needle-pointed tester probe to prevent the terminal damage or terminal bend.
NOTE:
After repairing the trouble, clear the DTC using SDS tool. (12-21)
INSPECTION
Step 1
1) Stop the engine.
2) Check the injector coupler 1 for loose or poor contacts.
If OK, then measure the injector resistance.
3) Remove the seat rail assembly.
NOTE:
It is not necessary to remove the muffler.
4) Disconnect the injector coupler and measure the resistance
between terminals.
 Injector resistance: 10.0 – 11.0 Ω at 24 °C (75 °F)
Gr/W
Fuel injector
(Terminal – Terminal)
POSSIBLE CAUSE
• Injector circuit open or short.
• Injector malfunction.
• ECM malfunction.
B/R
Regulator
/rectifier
Magneto
1
1
Condenser