3. Check the electronic throttle valve fuse.
Is check result OK?
YES
Go to step 4.
NO
a. Replace the electronic throttle valve fuse.
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 8, and complete the service.
NO
Go to step 4.
4. Wire harness continuity.
• Disconnect the throttle servo motor coupler, ECU coupler and electronic throttle valve fuse.
• Open circuit check
Between throttle servo motor coupler "1" and
ECU coupler "2"
Between ECU coupler "2" and electronic throttle
valve fuse holder "3"
3
Is resistance 0 ?
YES
Go to "Short circuit check".
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 8, and complete the service.
NO
Go to "Short circuit check".
• Short circuit check
TIP
Disconnect the ECU related connectors before checking.
Refer to "PARTS CONNECTED TO THE ECU" on page 9-3.
yellow/red–yellow/red
yellow/white–yellow/white
red/blue–red/blue
2
O
Y/R
B/G
Y/W
G/B
R/B
B
R/L
Y/R
B
R
Y/W
L/Y
R/L
B
B
9-141
P0638
1
Y/W
Y/R