9-154
P1602
Disconnect the ECU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ECU” on page 9-3.
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 8-93.
6. Delete the DTC and check that the MIL goes off.
• Confirm that the DTC has a condition of “Recovered” using the YDT, and then delete the DTC.
Between starter relay coupler “3” and ground red–ground
Starter relay coupler “3” red–any other coupler terminal
ECU coupler “4” red–any other coupler terminal
Is resistance ?
YES
Go to step 5.
NO
a. Replace the wire harness.
b. Push the ON/start switch, and then check the condition of the DTC using the malfunction mode
of the YDT.
Is it in the “Recovered” condition?
YES
Go to step 6, and complete the service.
NO
Go to step 5.
O
B/GY/R
B
R/BG/B
Y/W
B
Y/RR/L
BB
R/LL/Y
Y/W
R
RR
Br
G/R
RR
Br
G/R
BA
3
3
4
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