9-143
P0202
Disconnect the ECU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ECU” on page 9-4.
Ground short circuit check “A”
Lines short circuit check “B”
5. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to “REPLACING THE ECU (Engine Control Unit)” on page 8-56.
6. Delete the DTC and check that the MIL goes off.
• Start the engine and let it idle for approximately 5 seconds.
• Confirm that the DTC has a condition of “Recovered” using the malfunction mode of the YDT, and
then delete the DTC.
Between injector #2 coupler “1” and ground
green/black–ground
red/blue–ground
Injector #2 coupler “1”
green/black–any other coupler terminal
red/blue–any other coupler terminal
ECU coupler “2” green/black–any other coupler terminal
Relay unit coupler “3” red–any other coupler terminal
Is resistance ∞ Ω?
YES
→ Go to step 5.
NO
a. Replace the wire harness.
b. Execute the diagnostic mode. (Code 37)
Is it hear operating sound?
YES
→ Go to step 6.
NO
→ Go to step 5.
W
L/W
R
L/B
LB
Sb/W
Sb
W
Br
L/W
RR
O
Gy/RO/GP/BY/R
B
R/BG/BL/BLg/R
B
G/YR/L
B/WB/WR/LL/WY/BY/RR/G
G/B
R/L
G/B
R/L
11
2
3
BA
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