12-54 FI SYSTEM DIAGNOSIS
“32” (P0201) FUEL INJECTOR CIRCUIT MALFUNCTION
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)
(Terminal – Terminal)
DETECTED CONDITION POSSIBLE CAUSE
CKP signal is produced but fuel injector signal is
interrupted by 8 times or more continuously.
• Injector circuit open or short.
• Injector malfunction.
• ECM malfunction.
ECM
Fuel injector
Gr/W#11
Regulator
/rectifier
Condenser
Magneto
B/R
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.
1
1
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