9-99
P0201
3. Connection of ECU coupler.
• Check the locking condition of the coupler.
• Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the
pins).
4. Wire harness continuity.
• Disconnect the injector #1 coupler, ECU coupler and fuel injection system relay coupler
• Open circuit check
Is the coupler condition normal?
YES
Go to step 4.
NO
a. Connect the coupler securely or replace the wire harness.
b. Execute the diagnostic mode. (Code D36)
Is it hear operating sound?
YES
Go to step 6.
NO
Go to step 4.
Between injector #1 coupler “1” and ECU cou-
pler “2”
red/black–red/black
Between injector #1 coupler and fuel injection
system relay coupler “3”
red/blue–red/blue
Is resistance 0 ?
YES
Go to “Short circuit check”.
NO
a. Replace the wire harness.
b. Execute the diagnostic mode. (Code D36)
Is it hear operating sound?
YES
Go to step 6.
NO
Go to “Short circuit check”.
R
R/L
R/B
L/Y
O
B/GY/R
B
R/BG/B
Y/W
B
Y/RR/L
BB
R/LL/Y
Y/W
R
R/L R/B
1
23
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